Storm data and unusual weather phenomena
Storm Data, Dec, 2008
Storm Data and Unusual Weather Phenomena
December 2008
Time Path Path
Local/ Length Width
Location Date Standard (Miles) (Yards)
CALIFORNIA, Extreme Southeast
CAZ032 Riverside County Eastern Deserts
17 0800MST
2200MST
A strong low pressure system moved
slowly through Southern California,
producing very heavy snow. About a foot
of snow fell in the higher elevations of
Joshua Tree NP. Snow was also reported
in many lower desert areas. Some roads
were either closed or traffic was
restricted.
CAZ033 Imperial County except the Lower
Colorado River Valley
18 0600PST
1000PST
Plentiful moisture combined with light
winds to produce dense fog.
CALIFORNIA, North Central
CAZ015 Northern Sacramento Valley
04 0000PST
2359PST
04 0000PST
2359PST
High pressure over the area brought
light winds and clear skies. This
allowed the unusual case of a record
minimum and a record maximum both being
tied on the same day in the northern
Sacramento Valley.
CAZ068-069 Mt Shasta/Western Plumas County--West
Slope Northern Sierra Nevada
14 2200PST
16 1600PST
A cold low pressure system dropped
southward into northern California
bringing 2 to 3 feet of snow
accumulation to a number of mountain
locations. Snowfall amounts of 4 to
nearly 5 feet were recorded at some of
the higher elevation ski resorts in the
northern Sierra Nevada Mountains. The
very cold airmass allowed for relatively
low snow levels. Snow amounts of more
than a foot fell at elevations as low as
3000 feet while amounts of 3 to 4 inches
fell in the foothills. Gusty winds
combined with the snow to cause poor
visibility at times. Numerous car
accidents were reported in slippery
conditions and downed trees caused power
outages to 11,000 customers in the
northern Sierra Nevada Mountain
communities.
CAZ015 Northern Sacramento Valley
18 0000PST
2359PST
A cool high pressure system in the wake
of a storm coupled with light winds and
clear skies to bring unseasonably cold
morning temperatures to the northern
Sacramento Valley.
CAZ013-063>064- Burney Basin/Eastern Shasta
068-069 County--Clear Lake/Southern Lake
County--Mountains Southwest Shasta
County to Northern Lake County--Mt
Shasta/Western Plumas County--Shasta
Lake/North Shasta County--West Slope
Northern Sierra Nevada
24 0600PST
25 0000PST
A winter storm which came in two waves
dropped heavy snow over the mountains of
interior northern California on the 24th
and 25th. The northern Sierra Nevada
Mountains received 1 to 3 feet of snow
above 6000 feet, with amounts of more
than 5 feet reported at Lassen National
Park. Wind gusts exceeding 60 mph were
recorded over higher mountain peaks. The
strong wind coupled with falling snow
brought limited visibilities over the
higher mountains. Holiday travel was
significantly curtailed with many roads
closed for a period of time, including
Interstate 80.
CALIFORNIA, Northeast
CAZ073 Mono
13 0555PST
A winter storm brought strong winds to
the eastern Sierra and western Nevada.
CAZ070>073 Greater Lake Tahoe Area--Lassen/Eastern
Plumas/Eastern Sierra--Mono--Surprise
Valley
14 1700PST
15 2200PST
A powerful winter storm brought heavy
snowfall to the eastern Sierra and
western Nevada.
CAZ073 Mono
16 1305PST
1310PST
One day after a powerful snowstorm
deposited up to 4 feet of snowfall in
the central Sierra Nevada an avalanche
occurred at Mammoth Mountain Ski Resort.
CAZ070>072 Greater Lake Tahoe Area--Lassen/Eastern
Plumas/Eastern Sierra--Surprise Valley
18 2000PST
19 1000PST
CAZ072-073 Greater Lake Tahoe Area--Mono
19 0644PST
1418PST
A low pressure system moved through the
northern Sierra and western Nevada and
brought snow and high winds to the
region.
21 1700PST
22 0500PST
CAZ073 Mono
21 1800PST
22 0500PST
CAZ072-073 Greater Lake Tahoe Area--Mono
22 0144PST
0550PST
A low pressure system brought snowfall
and strong winds to the eastern Sierra.
CAZ070>073 Greater Lake Tahoe Area--Lassen/Eastern
Plumas/Eastern Sierra--Mono--Surprise
Valley
24 0700PST
25 1400PST
CAZ072 Greater Lake Tahoe Area
25 1030PST
1035PST
A winter storm brought over two feet of
snow to parts of the Sierra Nevada and a
rare white Christmas to much of western
Nevada. M21OU
CALIFORNIA, South Central
CAZ089>092 East Central San Joaquin
Valley--Southeast San Joaquin
Valley--Southwest San Joaquin
Valley--West Central San Joaquin Valley
01 0000PST
1400PST
05 0300PST
1200PST
CAZ090>092 East Central San Joaquin
Valley--Southeast San Joaquin
Valley--Southwest San Joaquin Valley
05 0300PST
1200PST
December began with the central
California interior under an upper-level
high-pressure ridge. This ridge brought
a stable airmass to the region, and
strengthened the inversion over the San
Joaquin Valley. As a result, areas of
low clouds and overnight and morning
dense fog were a daily occurrence during
the first few days of the month.
Visibilities near zero occurred in many
parts of the San Joaquin Valley. Drizzle
occurred during the morning of December
2nd, and enough moisture condensed out
of the lowest levels of the airmass for
a respite from widespread dense fog on
the 3rd and 4th, although patchy dense
fog did occur. Rather than widespread
dense fog, a layer of low altitude
stratus formed and persisted over the
San Joaquin Valley. More widespread
dense fog returned to the central and
southern San Joaquin Valley on the 5th
and 6th.
CAZ089>092 East Central San Joaquin
Valley--Southeast San Joaquin
Valley--Southwest San Joaquin
Valley--West Central San Joaquin Valley
10 0200PST
12 0500PST
Behind a departing low, an upper-level
ridge over the eastern Pacific built
into California, bringing more stratus
and patchy dense fog during the morning
of December 8th. A weak upper-level
disturbance moved over the central
California interior, bringing light rain
to the central and southern San Joaquin
Valley; a few hundredths of an inch fell
at Fresno. High pressure rebuilt over
the central California interior,
bringing more dense fog to the central
and southern San Joaquin Valley. The
worst dense fog conditions were
prevalent during much of the overnight
and morning hours on December 9, 10, 11,
and 12, when visibilities were lowered
to near zero in some areas due to very
dense fog.
CAZ095-098-099 Indian Wells Valley--Kern County
Mountains--Southeast Kern County Desert
13 0400PST
14 0300PST
CAZ089-090 East Central San Joaquin Valley--West
Central San Joaquin Valley
14 0400PST
0800PST
CAZ095>097 Kern County Mountains--South Sierra
Mountains--Tulare County Mountains
14 2024PST
16 0400PST
The weather pattern changed on December
12th, as a series of upper-level troughs
began moving through the central
California interior. These troughs
brought several days of precipitation to
the region, as well as a push of
unseasonably cold air. The first storm
brought up to an inch of rain to the
central and southern San Joaquin Valley,
and heavy snow to the Southern Sierra
Nevada and Tehachapi Mountains. Wofford
Heights, near the southern end of the
Sierra Nevada received a foot of new
snow on December 15th, as did Camp
Nelson, further north in Tulare County.
1648 PST: Ponderosa Basin 18 inches of
snow so far. Locations in the higher
terrain saw very high snowfall totals
with this storm. Between 2 to 4 feet of
snow fell at locations such as Tenaya
Lake, Poison Ridge, Lower Kibbie Ridge,
Pascoes, Wet Meadows, and Casa Vieja
Meadows. Despite the low snow levels,
little snow fell in the Sierra Nevada
foothills. This storm also brought
strong winds to the Kern Mountains and
the Deserts with peak wind gusts
reported between 50 to 55 mph.
17 0400PST
2000PST
CAZ099 Southeast Kern County Desert
17 0400PST
2000PST
CAZ089>091 East Central San Joaquin
Valley--Southwest San Joaquin
Valley--West Central San Joaquin Valley
18 0300PST
0900PST
Another major winter storm reached the
central California Interior during the
afternoon of December 16th. This storm
dropped south along the coast, and as a
result had a stronger impact on the Kern
County mountains and desert than on the
Sierra Nevada north of Kings Canyon. In
the Kern desert, California City had 6
inches of new snow, and Rosamond
received 2 inches. In the Kern County
mountains, a foot of snow fell at Alpine
Mountain. Rain that developed over San
Luis Obispo and Monterey Counties during
the afternoon of the 16th moved into the
west side of the San Joaquin Valley, and
actually produced light snowfall at
Harris Ranch.
As the storm crossed southern California
and into Arizona, skies cleared over the
central California interior. In the
central and southern San Joaquin Valley,
temperatures fell into the mid 20s
during the morning of December 18th. The
lowest temperatures were recorded in
Merced and western Fresno Counties,
where durations below 28 degrees were as
much as 5 hours.
CAZ098-099 Indian Wells Valley--Southeast Kern
County Desert
21 0255PST
22 2100PST
CAZ096-097 South Sierra Mountains--Tulare County
Mountains
21 1600PST
22 1345PST
CAZ095>097 Kern County Mountains--South Sierra
Mountains--Tulare County Mountains
24 1800PST
25 2000PST
CAZ089>092-098> East Central San Joaquin Valley--Indian
099 Wells Valley--Southeast Kern County
Desert--Southeast San Joaquin
Valley--Southwest San Joaquin
Valley--West Central San Joaquin Valley
25 1300PST
2200PST
Another winter storm arrived in Central
California on the 21st, bringing another
round of rain and mountain snow to the
region. SNOTEL observations in the
Southern Sierra Nevada indicated that
between one and two feet of snow fell
over the higher elevations on the 21st
and 22nd. Another storm reached
California on Christmas Eve, but there
was little (if any) break between the
instability showers behind the exiting
storm and the arrival of the new system.
Snow levels fell below 3000 feet with
this storm, with snow falling at
Kernville. Gusty winds moved through the
region on Christmas Day, with gusts to
around 40 mph hitting Hanford around
midday. Winds across the valley caused
isolated reports of downed powerlines
and small trees with peak wind gusts
near 50 mph with the cold front.
After this system passed, widespread
dense fog did not return for several
days. This lack of sky cover, combined
with light winds, allowed for good
radiational cooling. This resulted in
three days of freezing temperatures in
the central and southern San Joaquin
Valley, although widespread critical
temperatures were not reported.
Strong winds also occurred with this
storm across the Kern deserts with gusts
to near 50 mph common, especially near
and below canyons and passes.
26 0300PST
0800PST
CAZ089>092 East Central San Joaquin
Valley--Southeast San Joaquin
Valley--Southwest San Joaquin
Valley--West Central San Joaquin Valley
26 0300PST
0800PST
CAZ089>092 East Central San Joaquin
Valley--Southeast San Joaquin
Valley--Southwest San Joaquin
Valley--West Central San Joaquin Valley
28 0000PST
0800PST
After the last major winter storm of
December finally passed to the east of
central California, widespread dense fog
did not return for several days. This
lack of sky cover, combined with light
winds, allowed for good radiational
cooling. This resulted in three days of
sub-freezing temperatures in the central
and southern San Joaquin Valley,
although widespread critical
temperatures were not reported.
High pressure returned to the region by
the 30th, and widespread fog returned
with patchy dense fog over the central
and southern San Joaquin Valley just
after sunset during that evening. The
fog remained through the afternoon hours
of the 31st. The dense fog caused
visibilities to fall to between one-half
to one-quarter miles at times across
many sections of the San Joaquin Valley.
Cloud ceilings began to rise, and
visibility began to improve over the
central and south valley on New Year's
Eve, just before the start of the New
Year.
CALIFORNIA, Southeast
CAZ519-520 Eastern Sierra slopes of Inyo
County--Owens Valley
13 0430PST
0740PST
CAZ523 Western Mojave Desert
13 1649PST
High winds buffeted the Mojave Desert
and southern Great Basin ahead of a
strong cold front.
CAZ519-524-525 Eastern Mojave Desert--Eastern Sierra
slopes of Inyo County--Morongo Basin
15 0100PST
1700PST
A Pacific storm pushed moisture over
cold air in the Mojave Desert and
southern Great Basin, producing
significant snow as low as 3000 feet.
CAZ523>525 Eastern Mojave Desert--Morongo
Basin--Western Mojave Desert
17 0600PST
1800PST
Just two days after one storm system
produced heavy snow in the higher
elevations of the Mojave Desert and
southern Great Basin, a second storm
came through on a track slightly south
of the first one. This storm produced
heavy snow down to the desert floor over
much of the Mojave Desert. Snow was seen
as low as 1500 feet.
CAZ519 Eastern Sierra slopes of Inyo County
24 1800PST
25 2200PST
CAZ525 Morongo Basin
25 1450PST
A strong Pacific storm and associated
cold front traversed the Mojave Desert
and southern Great Basin, bringing heavy
snow to the higher elevations and high
winds to the lower elevations.
CALIFORNIA, Southwest
CAZ042 Orange County Coastal Plain
01 0000PST
0900PST
Dense fog resulted in flight delays and
auto accidents during a busy holiday
weekend.
CAZ048-056>058 Riverside County Mountains--San
Bernardino County Valley/The Inland
Empire--San Diego County
Mountains--Santa Ana Mountains and
Foothills
09 0630PST
1607PST
A 1032 mb high over the Great Basin,
combined with strong upper-level North
to Northeasterly winds, led to strong
gusty offshore winds over Southern
California which knocked down trees and
telephone poles.
CAZ060 Apple and Yucca Valleys
13 1205PST
1751PST
CAZ055 San Bernardino County Mountains
15 0200PST
1900PST
CAZ056-060 Apple and Yucca Valleys--Riverside
County Mountains
15 0600PST
1900PST
Orange County
Disneyland 15 0800PST
1030PST
Shortly after 0900 PST, the roof of a
classroom partially collapsed due to
heavy rain. Fourteen people, ages 17 to
50, were taken to the hospital with
minor injuries.
Orange County
1 NW Modjeska 15 1030PST
1130PST
Heavy rain in the Santiago Bum Area
caused mud and debris flows in Modjeska
Canyon. Many of the roads and yards that
were buried in mud by this debris flow
were impacted by similar debris flows
last winter. The amount of mud and rock
left in the wake of the debris flow was
extensive but damage to roads and
property was minor.
CAZ060 Apple and Yucca Valleys
15 1851PST
1951PST
CAZ055-058-060 Apple and Yucca Valleys--Riverside
County Mountains--San Bernardino County
Mountains--San Diego County Mountains
17 0000PST
2200PST
CAZ048-057 San Bernardino County Valley/The Inland
Empire--Santa Ana Mountains and
Foothills
17 1030PST
1312PST
San Diego County
1 WNW San Ysidro 17 1130PST
(NRS)Naf Imperial Be 1530PST
Significant flooding in the Tijuana
River Valley resulted in the deaths of a
Tijuana man and numerous ranch and farm
animals. At least 21 people had to be
rescued, including 6 by helicopter.
Three men were taken to a hospital and
treated for hypothermia. An estimated 70
horses were also rescued. Three horses
drowned before they could be rescued and
another horse was later euthanized due
to a leg injury. Fifteen goats and an
unknown number of dogs also died in the
flood. One farmer lost $600,000 dollars
worth of his crop while another lost
$10,000 dollars worth of watermelons.
The one human death occurred outside the
forecast area in Tijuana, Mexico. The
flash flood occurred when both the
Tijuana River and a nearby flood control
channel became dammed with sediment,
trash, and other debris.
A pair of winter storms associated with
a vigorous, cold upper-low brought
periods of high winds, heavy rain, and
snow to the region from late on the 13th
through the 17th. The first storm
brought rain to the power elevations and
gusty winds and very heavy snow to the
mountains and deserts. Blizzard
conditions forced the closure of
mountain highways while heavy rain
caused a debris flow in the Santiago
Burn Area. Snowfall accumulations from
this first storm measured 31 inches at
Big Bear Lake, 30 inches at Running
Springs, and 24 inches at Forest Falls.
The second storm on the 17th was notable
for its significant rains in the low
deserts and heavy snowfall in the
mountains and high deserts. Heavy rain
caused significant flooding in the
Tijauna River valley. Surface offshore
pressure gradients and mid-level
easterly flow brought dry air into the
region, resulting in widespread
evaporative cooling and snow levels down
to the desert floor. The winter storm
dumped 20 inches of snow in Pinon Hills,
18 inches of snow in Hesperia, Lucerne
Valley, Palomar Mountain, and Julian, 16
inches of snow in Idyllwild, 14 inches
in Victorville, and even 4 inches in
Shelter Valley. Local snowfall amounts
in excess of 2 feet occurred in the San
Bernardino Mountains. Total snowfall
accumulations at Big Bear Lake for the 5
day period ending on the 17th was an
impressive 54 inches.
CAZ056-060-061 Apple and Yucca Valleys--Coachella
Valley--Riverside County Mountains
25 1351PST
1707PST
A weakening upper-level low, along with
a strong Polar Jet over California,
brought periods of light to moderate
rain, mountain snow, and strong winds
over the Christmas holiday. Rainfall
amounts ranged from one-quarter to
one-half inch at the lower elevations,
and one to two and one-half inches in
the coastal slopes. No significant
snowfall was reported. High winds downed
trees and power lines in Encinitas, Palm
Desert, and Palm Springs.
CALIFORNIA, Upper
CAZ085 Modoc County
14 1900PST
15 0700PST
Post-frontal showers behind the first
major winter storm of the season brought
locally significant snow to Southwest
Oregon and Northern California. Winter
Weather Advisories were in effect over
most of the area. Heavy Snow reports
were isolated, so this was for the most
part an Advisory event.
CAZ082 South Central Siskiyou County
18 0900PST
2100PST
The second major winter storm of the
year moved into Southern Oregon and
Northern California at this time ... hot
on the heels of the first one. The main
impact of the storm was the low snow
levels which created widespread travel
difficulties ... but heavy snow was
reported in the mountains as well. A
Winter Storm Warning for Heavy Snow was
issued for California zone CAZ080 at
17/0334 PST, effective from
18/0400-19/0000 PST. It was shortened to
18/2200 PST at 18/1032 PST,
then expired at 18/2200 PST. A Winter
Storm Warning for Heavy Snow was issued
for California zones CAZ081/082/083/084
at 17/0334 PST, effective from
18/1000-19/0000 PST. It was shortened to
18/2200 PST at 18/1032 PST,
then cancelled at 18/1307 PST. A Winter
Storm Warning for Heavy Snow was issued
for California zone CAZ085 at 18/0336
PST, effective from 18/1000-19/0000
PST. It was shortened to 18/2200 PST at
18/1032 PST, then cancelled
at 18/1307.
24 1800PST
2200PST
Another winter storm hit Southern Oregon
and Northern California during this
interval, A Winter Storm Warning for
Heavy Snow was issued for California
zone CAZ080 above 2000 feet at 23/1155
PST, effective from 23/2200 until
23/1600 PST. The effective time was
extended to 25/1600 PST at 24/0517 PST,
and changed to 24/1600 through 25/1600
PST at 24/1023 PST. The warning was
cancelled at 24/1259 PST. A Winter Storm
Warning for Heavy Snow was issued for
California zone CAZ082 at 24/2134 PST,
effective from 24/2134 until 25/1900
PST. The warning was cancelled at
25/0933 PST.
CALIFORNIA, West South Central
CAZ053-054 Los Angeles County Mountains Excluding
the Santa Monica Range--Ventura County
Mountains
09 0553PST
1053PST
Strong northerly winds developed across
the mountains of Ventura and Los Angeles
counties. Winds gusting as high as 76
MPH were reported.
Santa Barbara County
3 NNW El Encanto 15 0100PST
0800PST
Bands of showers produced intense
rainfall rates in and around the Gap
Fire bum area. The West Camino Cielo
sensor reported 1.47 inches of rainfall
in one hour. With such intense rainfall
rates, mud and debris flows were
reported. Fortunately, areas affected by
the mud and debris flows were protected
by a fence. Behind the fence, up to 6
feet of mud and debris was reported.
Santa Barbara County
3 NE Santa Barbara 15 0200PST
0800PST
Bands of showers produced intense
rainfall rates across the Tea Fire bum
area. Rainfall rates in excess of 0.50
inches per hours were reported. The
intense showers produced mud and debris
flows which forced the closure of East
Mountain Drive south of the burn scar.
CAZ053-054 Los Angeles County Mountains Excluding
the Santa Monica Range--Ventura County
Mountains
15 0700PST
A significant early-season winter storm
brought significant precipitation and
wind to Central and Southern California.
Rainfall totals across the forecast area
ranged between 1 and 3 inches. Along
with the rainfall totals, the rainfall
rates were high enough to produce mud
and debris flows near some bum areas. In
the mountains, significant winter storm
conditions were reported. Snowfall
totals between 10 and 16 inches were
reported. In addition, winds gusting to
around 55 mph produce areas of reduced
visibilities in snow and blowing snow.
CAZ054-059 Antelope Valley--Los Angeles County
Mountains Excluding the Santa Monica
Range
17 1500PST
1643PST
A extremely cold early-season storm
heavy snow and strong winds to the
mountains and deserts of Los Angeles
county. Cold air associated with the
storm dropped snow levels down to around
1500 feet. With such low snow levels,
significant snowfall accumulations were
reported across the Antelope Valley
where elevations are around 2500 feet.
In addition to the snowfall, very strong
northeast winds gusting to between 35
and 55 MPH were reported.
CAZ053-054 Los Angeles County Mountains Excluding
the Santa Monica Range--Ventura County
Mountains
26 0600PST
Another early-season storm brought
winter storm conditions to the mountains
of Ventura and Los Angeles counties.
Snowfall totals up to 12 inches were
reported along with winds gusting to 55
MPH.
CALIFORNIA, Western
Santa Cruz County
3 ENE Mesa Vlg 15 0700PST
0701PST
A wet mountain road caused a man to veer
off highway 152 near Watsonville
resulting in his death.
CAZ508 San Francisco Bay Shoreline
15 1740PST
1840PST
CAZ507 North Bay Mountains
16 0700PST
1100PST
Sonoma County
2 SW Sonoma 16 0700PST
1 SW Schellville 0701PST
Heavy rain caused a fatality of a 32
year-old man when his vehicle collided
with another vehicle. Highways 116 and
121 were closed for about three hours
after the collision.
CAZ508 San Francisco Bay Shoreline
17 0630PST
0730PST
A cold core low pressure system produced
winter storm conditions causing low
elevation snow, minor flooding and
isolated strong wind through the period
40162 through 17, 2009. Snow amounts
ranged from a few inches in the hills
around the San Francisco Bay Area to as
high as nine inches at Mount Hamilton.
CAZ508-513 San Francisco Bay Shoreline--San
Francisco Peninsula Coast--Santa Clara
Valley Including San Jose
25 0200PST
1100PST
A strong fast moving low pressure system
brought strong southerly winds and
mountain snow to the San Francisco Bay
area. This holiday wind event toppled
trees and left many with out power in
San Mateo and Santa Clara counties.
COLORADO, Central and Northeast
COZ035-038>039- Boulder & Jefferson Counties below 6000
041-043 Feet/West Broomfield County--Central &
South Weld County-- Elbert/Central &
east Douglas Counties above 6000
Feet--Jefferson & West Douglas Counties
above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties below 9000
Feet--Larimer & Boulder Counties between
6000 & 9000 Feet--Larimer County below
6000 Feet/Northwest Weld County
04 0230MST
2000MST
A storm system brought moderate to heavy
snowfall to areas in and near the Front
Range Foothills, Urban Corridor and
Palmer Divide. Storm totals included: 10
inches, 4 miles south of Boulder; 8.5
inches, 3 miles southwest of Golden; 8
inches, 12 miles southeast of Aurora; 7
inches at Boulder, 1 mile east of
Buckhorn Mountain, Fort Collins and
Genessee. A localized band of heavy snow
also produced nearly 7 inches of snow in
and around Greeley.
COZ034 South & Southeast Grand/West Central &
Southwest Boulder/Gilpin/Clear
Creek/Summit/North & West Park Counties
above 9000 Feet
05 1100MST
An avalanche partially buried a skier on
Berthoud Pass. The skier suffered minor
injuries.
06 1330MST
A second avalanche struck a skier on
Berthoud Pass. The person was caught and
carried for some distance, but was not
injured.
COZ036-039-041 Boulder & Jefferson Counties below 6000
Feet/West Broomfield
County--Elbert/Central & east Douglas
Counties above 6000 Feet--Jefferson &
West Douglas Counties above 6000
Feet/Gilpin/Clear Creek/Northeast Park
Counties below 9000 Feet
08 1400MST
09 0500MST
COZ040 North Douglas County below 6000
Feet/Denver/West Adams & Arapahoe
Counties/east Broomfield County
08 1400MST
09 0500MST
A Pacific storm system, coupled with
upslope winds; produced heavy snow in
and near the foothills of Boulder,
Jefferson and Douglas Counties, and
along the Palmer Divide. In the Front
Range Foothills, storm totals included:
15 inches, 3 miles southwest of
Roxborough State Park and Strontia
Springs Dam; 14 inches at Ken Caryl; 13
inches, 3 miles southwest of Conifer,
Genesee, 3 miles southeast of Indian
Hills, 6 miles west of Littleton and
Lookout Mountain; 11 inches, 3 miles
southwest of Morrison; 10 inches, 7
miles southwest of Boulder and 6 miles
southwest of Evergreen. In Boulder and
in locations west and south of Denver,
storm totals included: 13 inches near
Kassler, 10 inches, 2 miles southwest of
Larkspur; 8.5 inches, 8 miles south of
Franktown, Louisville and 7 miles south
of Sedalia; 8 inches in Boulder and 1
mile east of Castle Rock, 7 inches at
Lafayette and 3 miles south of
Littleton, 6.5 inches in Arvada and 3
miles east of Highlands Ranch, with 6
inches at Lakewood and Wheat Ridge.
COZ034 South & Southeast Grand/West Central &
Southwest Boulder/Gilpin/Clear
Creek/Summit/North & West Park Counties
above 9000 Feet
13 1200MST
14 0500MST
A storm system brought heavy snow to
portions of the North Central Mountains.
The heaviest snowfall was reported in
Summit County. Storm totals included: 13
inches at the Eisenhower Tunnel, 11.5
inches, 7.5 miles northwest of
Silverthome, with 8 inches at Frisco.
COZ035 Larimer & Boulder Counties between 6000
& 9000 Feet
25 1400MST
Strong winds in Estes Park caused a roof
under construction at the YMCA of the
Rockies to collapse. The wind caught the
end section of the roof truss, and in a
domino effect, blew it into the second
and thirds trusses, on down the line of
the roof.
COZ033 South & East Jackson/Larimer/North &
Northeast Grand/Northwest Boulder
Counties above 9000 Feet
26 1440MST
Two snowmobilers were killed on the side
of Gravel Mountain near Grand Lake. The
avalanche occurred when one of the men
tried to assist the other, after his
snowmobile had become stuck in the snow.
Both men were buried by the slide and
died at the scene of the accident.
Another snowmobiler was partially buried
in the avalanche, but was not injured.
M19OU, M38OU
COZ035-038-039 Boulder & Jefferson Counties below 6000
Feet/West Broomfield County--Larimer &
Boulder Counties between 6000 & 9000
Feet--Larimer County below 6000
Feet/Northwest Weld County
29 2106MST
30 0731MST
Very strong Chinook winds blasted areas
in and near the Front Range Foothills of
Larimer, Boulder and Jefferson Counties.
The wind blew down trees and power
poles, downed electrical lines and
fences, and damaged homes and vehicles.
Scattered power outages were reported
all along the Front Range. In
Metropolitan Denver alone, 24,000 Xcel
customers were affected by the outages.
Strong crosswinds also blew over some
semi-trailers along Interstate 25, near
the Wyoming state line. In Larimer
County, two small wildfires were sparked
by downed power lines in Rist Canyon and
near the Laporte/Bellvue areas. Four
planes were damaged at the Vance Brand
Municipal Airport in Longmont; one was
wrecked. Insurance companies estimated
up to $7 million in damage along the
Front Range and adjacent plains, making
it the 4th costliest windstorm to hit
Colorado.
Peak wind gusts included: 1 11 mph, 3
miles north of Masonville; 98 mph at
Carter Lake; 87 mph at the National Wind
Technology Center; 86 mph, 2 miles north
of Longmont and at Pinewood Lake; 81
mph, 3 miles east of Gold Hill; 78 mph,
2 miles west-southwest of Broomfield; 77
mph at Erie; 76 mph, 21 miles north of
New Raymer and 75 mph at Lafayette.
31 2027MST
2359MST
COZ039 Boulder & Jefferson Counties below 6000
Feet/West Broomfield County
31 2027MST
2359MST
Another brief period of high winds
occurred in and near the foothills of
Boulder and Jefferson Counties. In
Nederland, the strong wind snapped a
blue spruce which landed on a nearby
propane tank. Some roofs in the
immediate area were damaged. Power lines
were also downed; which left 126
residence without electricity for about
6 hours. Peak wind gusts included 90 mph
at the National Wind Technology Center,
and 89 mph, 6 miles northwest of
Boulder.
COLORADO, South Central and Southeast
COZ072>075-078> Northern Sangre De Cristo Mountains
080-087>088 above 11000 Ft--Northern Sangre De
Cristo Mountains between 8500 & 11000
Ft--Southern Sangre De Cristo Mountains
above 11000 Ft--Southern Sangre De
Cristo Mountains between 7500 & 11000
Ft--Trinidad Vicinity/Lower Huerfano
River Basin & Western Las Animas County
below 7500 Ft--Walsenburg Vicinity/Upper
Huerfano River Basin below 7500 Ft--
Westcliffe Vicinity/Wet Mountain Valley
below 8500 Ft--Wet Mountains above 10000
Ft--Wet Mountains between 8500 and 10000
Ft
08 1400MST
09 0900MST
A strong upper level disturbance
produced significant amounts of snow
across the southeastern mountains and
the southern I-25 Corridor. Seven to 10
inches of snow fell around Walsenburg
(Huerfano County) and locally in the
Monument area (northern El Paso County)
... 12 to 15 inches in and near Colorado
City ... Aguilar ... Trinidad and Beulah
(Las Animas County and Pueblo County)
... 18 to 19 inches in Rye and La Veta
(Pueblo County and Huerfano County) ...
25 inches on the north slopes of the
Spanish Peaks (Huerfano County) ... and
an impressive 34 inches in and near
Cuchara (Huerfano County).
COZ058-060-066- Eastern Lake County/Western Mosquito
068 Range above 11000 Ft--Eastern San Juan
Mountains above 10000 Ft--Eastern
Sawatch Mountains above 11000 Ft--La
Garita Mountains above 10000 Ft
13 0600MST
14 1000MST
A storm system produced generous amounts
of snow ... mainly in the mountains of
southern Colorado. Some snow amounts
include up to 6 inches in Pueblo West
(Pueblo County) ... 13 inches on Monarch
Pass (Chaffee County) ... and an
impressive 32 inches near the summit of
Wolf Creek Pass (Mineral County).
15 1800MST
16
COZ067-068 Eastern San Juan Mountains above 10000
Ft--Upper Rio Grande Valley/Eastern San
Juan Mountains below 10000 Ft
15 1800MST
16
Strong upslope flow ... accompanied with
abundant moisture ... impacted mainly
the eastern San Juan and La Garita
Mountains in and near ... and portions
of the Sangre de Cristo Mountains. Some
of the higher snow amounts were ... 6
inches Cuchara (Huerfano County) ... 7
inches 7 miles west of Westcliffe
(Custer County) ... 8 inches on Monarch
Pass (Chaffee County) ... and 13 inches
near the summit of Wolf Creek Pass
(Mineral County).
COZ060-066-068 Eastern San Juan Mountains above 10000
Ft--Eastern Sawatch Mountains above
11000 Ft--La Garita Mountains above
10000 Ft
22 0400MST
23 2300MST
Strong upslope flow ... with abundant
moisture impacted the eastern San Juan
and La Garita Mountains ... and the
eastern Sawatch Range. The higher
accumulations ranged from 10 to 14
inches on Monarch Pass and points north
... and 33 inches near the summit of
Wolf Creek Pass (Mineral County).
25 0100MST
27 1000MST
COZ060-066-067 Eastern Sawatch Mountains above 11000
Ft--La Garita Mountains above 10000
Ft--Upper Rio Grande Valley/Eastern San
Juan Mountains below 10000 Ft
25 0200MST
27 1200MST
COZ060-066-068 Eastern San Juan Mountains above 10000
Ft--Eastern Sawatch Mountains above
11000 Ft--La Garita Mountains above
10000 Ft
25 1800MST
26 0100MST
Another in a series of winter storms
produced blizzard conditions and copious
amounts of snow to the eastern San Juan
and La Garita Mountains ... the Upper
Rio Grande Valley ... and the eastern
Sawatch Range. Some of the higher snow
totals were ... 17 inches on Monarch
Pass (Chaffee County) and 29 inches near
the summit of Wolf Creek Pass (Mineral
County). This heavy snow was accompanied
by winds gusting to 70 mph at times.
COZ073-075-080- Northern Sangre De Cristo Mountains
082 above 11000 Ft--Pikes Peak above 11000
Ft--Southern Sangre De Cristo Mountains
above 11000 Ft--Wet Mountains above
10000 Ft
26 0000MST
0500MST
High winds aloft produced high winds
over the higher elevations of the Wet
Mountains ... the Sangre De Cristo
Mountains ... and Pikes Peak. Strong
winds occurred in the lower elevations
of the eastern mountains and across much
of the 1-25 Corridor.
COZ081-084 Northern El Paso County/Monument
Ridge/Rampart Range below 7500 Ft--Pikes
Peak above 11000 Ft-- Teller
County/Rampart Range above 7500 Ft/Pikes
Peak between 7500 & 11000 Ft
30 0700MST
1000MST
Strong to high winds occurred over
northern parts of El Paso County and
Teller County. Winds gusted up to 80 mph
knocking around 20 trees down. A
semi-trailer was overturned near mile
marker 148 on 1-25 in northern Colorado
Springs. Four power failures affected
nearly 1000 customers on the north side
of Colorado Springs.
COLORADO, West
COZ018 Northwestern San Juan Mountains
01 0000MST
0500MST
A moist northwest flow produced
significant snowfall and strong winds
across the area.
COZ004-010-013 Elkhead and Park Mountains--Flattop
Mountains--Gore and Elk
Mountains/Central Mountain Valleys--
Upper Yampa River Basin
03 0900MST
04 1400MST
An upper level disturbance combined with
orographic lift in northwest flow
produced significant snowfall across the
northern mountains of western Colorado.
COZ019 Southwestern San Juan Mountains
07 1400MST
09 0900MST
COZ018 Northwestern San Juan Mountains
08 0100MST
09 0900MST
COZ004-009-012> Elkhead and Park Mountains--Flattop
014-017 Mountains--Gore and Elk
Mountains/Central Mountain Valleys--
Grand and Battlement Mesas--Uncompahgre
Plateau and Dallas Divide--Upper
Gunnison River Valley-- West Elk and
Sawatch Mountains
08 0100MST
09 2345MST
A low pressure system brought
significant snowfall to the mountains of
western Colorado.
12 1200MST
14 1700MST
COZ010-012-018> Flattop Mountains--Gore and Elk
019 Mountains/Central Mountain
Valleys--Northwestern San Juan
Mountains--Southwestern San Juan
Mountains--West Elk and Sawatch
Mountains
12 1200MST
14 1500MST
COZ009 Grand and Battlement Mesas
13 0600MST
14 1000MST
COZ001 Lower Yampa River Basin
13 1400MST
14 0600MST
COZ002 Central Yampa River Basin
13 1600MST
14 1500MST
COZ005 Upper Yampa River Basin
13 1600MST
14 1500MST
COZ008-014 Central Colorado River Basin--Upper
Gunnison River Valley
13 1900MST
14 0800MST
COZ006-007 Debeque to Silt Corridor--Grand Valley
13 2000MST
14 0800MST
COZ017 Uncompahgre Plateau and Dallas Divide
13 2200MST
14 1400MST
COZ011-021 Central Gunnison and Uncompahgre River
Basin--Four Corners/Upper Dolores River
Basin
13 2200MST
14 1100MST
COZ022-023 Animas River Basin--San Juan River Basin
14 0100MST
1100MST
A strong Pacific low pressure system and
cold front swept across western Colorado
and produced significant snowfall and
strong winds.
COZ010-018 Gore and Elk Mountains/Central Mountain
Valleys--Northwestern San Juan Mountains
14 1200MST
1432MST
A storm system dropped heavy snow onto
weak snow layers in the mountains which
resulted in numerous avalanches.
COZ003-009>010- Animas River Basin--Elkhead and Park
012>013-017>019- Mountains--Flattop Mountains--Four
021-023 Corners/Upper Dolores River Basin--Gore
and Elk Mountains/Central Mountain
Valleys--Grand and Battlement Mesas--
Northwestern San Juan Mountains--Roan
and Tavaputs Plateaus--San Juan River
Basin--Southwestern San Juan
Mountains--Uncompahgre Plateau and
Dallas Divide--West Elk and Sawatch
Mountains
15 0800MST
19 1500MST
COZ008-011 Central Colorado River Basin--Central
Gunnison and Uncompahgre River Basin
15 1700MST
16 0900MST
COZ014 Upper Gunnison River Valley
16 0000MST
18 1400MST
COZ020 Paradox Valley/Lower Dolores River Basin
16 0000MST
17 1200MST
COZ002 Central Yampa River Basin
17 0800MST
18 2300MST
A Pacific storm system brought abundant
moisture and cold air to western
Colorado resulting in widespread heavy
snow and strong winds across the
mountains and much of the lower valleys.
Numerous travel restrictions were
enacted on many mountain roads and
highways.
COZ012 West Elk and Sawatch Mountains
17 1400MST
1402MST
A snowboarder was killed by an
avalanche. M36OU
COZ007-008 Central Colorado River Basin--Debeque to
Silt Corridor
17 2000MST
18 1600MST
COZ001 Lower Yampa River Basin
18 0000MST
1800MST
A Pacific storm system brought abundant
moisture and cold air to western
Colorado resulting in widespread heavy
snow and strong winds across the
mountains and much of the lower valleys.
Numerous travel restrictions were
enacted on many mountain roads and
highways.
COZ004-009-012> Elkhead and Park Mountains--Flattop
013 Mountains--Gore and Elk
Mountains/Central Mountain Valleys--
Grand and Battlement Mesas--West Elk
and Sawatch Mountains
19 1000MST
20 1300MST
A low pressure system moved across
western Colorado and produced
significant snowfall across the
northern and central mountains.
21 2200MST
23 2300MST
COZ017 Uncompahgre Plateau and Dallas Divide
21 2200MST
23 1100MST
COZ012-018-019 Northwestern San Juan
Mountains--Southwestern San Juan
Mountains--West Elk and Sawatch
Mountains
22 0000MST
23 1800MST
COZ001 Lower Yampa River Basin
22 0000MST
2100MST
COZ003-008-013 Central Colorado River Basin--Flattop
Mountains--Grand and Battlement
Mesas--Roan and Tavaputs Plateaus
22 0100MST
23 1700MST
COZ002-005-014 Central Yampa River Basin--Upper
Gunnison River Valley--Upper Yampa
River Basin
22 0200MST
1000MST
COZ007-022-023 Animas River Basin--Debeque to Silt
Corridor--San Juan River Basin
22 0400MST
23 0800MST
COZ021 Four Corners/Upper Dolores River Basin
22 0600MST
23 1200MST
COZ006-010 Gore and Elk Mountains/Central Mountain
Valleys--Grand Valley
22 0900MST
23 0500MST
COZ011-020 Central Gunnison and Uncompahgre River
Basin--Paradox Valley/Lower Dolores
River Basin
22 1400MST
23
A strong low pressure system preceded by
a deep and moist southwest flow brought
a prolonged period of winter weather and
widespread heavy snow to western
Colorado.
COZ003-009-012> Animas River Basin--Flattop
014-017>019-021> Mountains--Four Corners/Upper Dolores
023 River Basin--Gore and Elk
Mountains/Central Mountain
Valleys--Grand and Battlement
Mesas--Northwestern San Juan Mountains
--Roan and Tavaputs Plateaus--San Juan
River Basin--Southwestern San Juan
Mountains--Uncompahgre Plateau and
Dallas Divide--Upper Gunnison River
Valley--West Elk and Sawatch Mountains
24 1300MST
25 1800MST
COZ004-008-011- Central Colorado River Basin--Central
020 Gunnison and Uncompahgre River
Basin--Elkhead and Park
Mountains--Paradox Valley/Lower Dolores
River Basin
25 0100MST
26 1000MST
COZ006-007 Debeque to Silt Corridor--Grand Valley
25 0400MST
1300MST
COZ009-018-019 Grand and Battlement Mesas--Northwestern
San Juan Mountains--Southwestern San
Juan Mountains
25 1800MST
26 1500MST
A series of strong Pacific disturbances
brought a prolonged period of heavy snow
and strong winds to western Colorado
over the Christmas holiday. This storm
impacted all of western Colorado,
resulting in widespread travel
difficulties and many temporary road
closures. Blizzard conditions occurred
across much of the central and southern
mountain areas.
Mesa County
7 NW Mack 26 0035MST
0036MST
A fast moving thunderstorm produced a
severe wind gust. Note: The measured
wind gust of 55 knots is equivalent to
63 mph.
COZ012 West Elk and Sawatch Mountains
26 0100MST
1600MST
COZ002 Central Yampa River Basin
26 0200MST
1600MST
COZ001-005 Lower Yampa River Basin--Upper Yampa
River Basin
26 0200MST
1800MST
A series of strong Pacific disturbances
brought a prolonged period of heavy snow
and strong winds to western Colorado
over the Christmas holiday. This storm
impacted all of western Colorado,
resulting in widespread travel
difficulties and many temporary road
closures. Blizzard conditions occurred
across much of the central and southern
mountain areas.
COZ010 Gore and Elk Mountains/Central Mountain
Valleys
29 1200MST
1202MST
A man was injured after being caught in
an avalanche.
CONNECTICUT, Northeast
Hartford County
Burlington 12 0512EST
1110EST
Rock Road in Burlington was closed due
to flooding.
Hartford County
1 SE Wapping 12 1110EST
Highland Park 1400EST
The Hockanum River in Manchester
overflowed its banks at New State Road
with the water level over picnic table
seats near Adams Street.
While a major ice storm affected
Massachusetts and Southern New
Hampshire, three to four inches of rain
fell in Connecticut resulting in small
stream and some street flooding.
CTZ002>004 Hartford--Tolland--Windham
19 1300EST
20 1900EST
An intensifying coastal low spread heavy
snow across southern New England. Snow
began in the early afternoon across
Connecticut and southwestern
Massachusetts, spreading quickly across
Massachusetts, Rhode Island, and
southern New Hampshire. Eight to twelve
inches of snow fell across much of
southern New England.
31 0900EST
2359EST
CTZ004 Windham
31 1000EST
2359EST
A fast moving low pressure system moved
through Southern New England bringing
39913 inches of snow to the region. In
addition, strong cold advection and
pressure rises resulted in very cold
temperatures, strong winds, and bitterly
cold wind chills.
CONNECTICUT, Northwest
CTZ001-013 Northern Litchfield--Southern Litchfield
07 1300EST
2330EST
The combination of a low pressure system
tracking east across northern New York
State, and a second low pressure rapidly
developing across the Canadian Maritimes
created a tight pressure gradient across
much of eastern New York and western New
England during Sunday afternoon and
evening, December 7th. This tight
pressure gradient led to strong west to
northwest winds, with sustained speeds
of 15 to 30 mph, and gusts of up to 55
mph. These strong winds led to some
downed tree limbs, and subsequent
scattered power outages across the
region Sunday afternoon and evening.
11 0600EST
12 1300EST
CTZ013 Southern Litchfield
11 0600EST
12 0430EST
A cold front moved across eastern New
York and western New England on
Wednesday, December 10th, ushering a
cold airmass into the region. A low
pressure system developed over the
southeast states Wednesday and Wednesday
night. This storm then headed northeast
Thursday and Thursday night, December
11th, with precipitation spreading
northward well in advance of the low.
The low continued to track northeast,
passing over the mid Atlantic region
late Thursday night, and over the New
York City Metropolitan area and southern
New England Friday morning, December
12th. The low then moved to the Canadian
Maritimes Friday night.
As the storm approached, warmer air
moved in aloft, and with a cold airmass
remaining in place at the surface, this
set the stage for a significant mixed
precipitation event. The precipitation
came down heavy at times, especially
Thursday night. Hourly precipitation
rates of one quarter to one third of an
inch were reported for several hours in
the form of freezing rain across much of
the region. By the time the
precipitation tapered off Friday
morning, ice accretion from freezing
rain ranged from one half to three
quarters of an inch, with the greatest
amounts occurring across higher
elevations of northern Litchfield
County. The ice storm resulted in
numerous downed trees and resultant
power outages across northwest
Connecticut, where an estimated 5,000
utility customers lost power. Many
schools and businesses were closed
Friday due to the loss of power.
Litchfield County
Kent 12 0230EST
1 WNW Birch Hill 1145EST
Heavy rain caused several streams to
flood near Kent, resulting in road
closures. In addition, moderate flooding
along the Housatonic River in New
Milford forced a supermarket to remove
food to prevent flood damage.
A cold front moved across eastern New
York and western New England on
Wednesday, December 10th, ushering a
cold airmass into the region. A low
pressure system developed over the
southeast states Wednesday and Wednesday
night. This storm then headed northeast
Thursday and Thursday night, December
11th, with precipitation spreading
northward well in advance of the low.
The low continued to track northeast,
passing over the mid Atlantic region
late Thursday night, and over the New
York City Metropolitan area and southern
New England Friday morning, December
12th. The low then moved to the Canadian
Maritimes Friday night.
As the storm approached, warmer air
moved in aloft, and with a cold airmass
remaining in place at the surface, this
set the stage for a significant mixed
precipitation event. The precipitation
came down heavy at times, especially
Thursday night. Hourly precipitation
rates of one quarter to one third of an
inch were reported for several hours in
the form of freezing rain across much of
the region.
Total liquid amounts of 1 to just under
4 inches fell across Litchfield County.
This heavy rain led to minor flooding,
especially in urban and low lying areas
due to ice blocking storm drains.
In addition, moderate flooding occurred
along several portions of the Housatonic
River. In New Milford, a supermarket had
to have the food removed to prevent
flood damage as the Housatonic River
flooded the store.
CTZ001-013 Northern Litchfield--Southern Litchfield
17 0000EST
1200EST
A low pressure system tracked northeast
from the Tennessee Valley late Tuesday
night December 16th, to Lake Ontario by
Wednesday afternoon December 17th, while
another low pressure system developed
off the Delmarva Peninsula and tracked
northeast, passing just east of Cape Cod
late Wednesday. This combination of
systems brought a swath of light snow,
sleet and freezing rain across northwest
Connecticut, beginning late Tuesday
evening, and ending around midday
Wednesday. Total snow and sleet amounts
ranged from 1 to 2 inches, with the
greatest amounts across higher
elevations. In addition, ice accretion
of up to one tenth of an inch occurred
across portions of Litchfield County.
This wintry mix led to treacherous
travel conditions for the Wednesday
morning commute.
19 1200EST
20 0100EST
CTZ013 Southern Litchfield
19 1200EST
20 0100EST
A low pressure system tracked from the
southwestern U.S. Thursday morning
December 18th, to southern Illinois by
Friday morning December 19th, to a
position well off the New England coast
by Saturday morning December 20th. This
low spread a swath of moderate to heavy
snowfall across much of east central New
York and western New England, beginning
Friday afternoon, and ending early
Saturday morning. Snowfall totals
generally ranged from 6 to 10 inches
across northwest Connecticut. This heavy
snowfall closed numerous businesses and
schools Friday through Saturday, and
also led to treacherous travel
conditions.
CTZ001 Northern Litchfield
21 0700EST
1900EST
A low pressure system tracked across the
Great Lakes late Saturday December 20th,
into Sunday December 21st. As this low
moved into the eastern Great Lakes, a
second low pressure developed south of
Long Island Sunday afternoon, and
intensified rapidly, moving northeast
off the northern New England coast by
Monday morning December 22nd.
A swath of light to moderate snow fell
across northwest Connecticut, beginning
Sunday morning, and tapering off by
Sunday evening.
Snowfall accumulations generally ranged
from 3 to 6 inches, with the greatest
amounts occurring across the higher
elevations of northern Litchfield
County.
Strong winds and snow squalls persisted
in the wake of this storm system for
Sunday night and Monday.
24 0500EST
1200EST
CTZ013 Southern Litchfield
24 0500EST
1200EST
A low pressure system tracked rapidly
northeast, from the Great Lakes
Wednesday morning on December 24th, to
off the northern New England coast by
Thursday morning on December 25th.
A warm front associated with this low
approached eastern New York and western
New England during Wednesday, spreading
a wintry mix of snow, sleet and freezing
rain during the morning hours, before
changing to plain rain by late Wednesday
afternoon.
This wintry mix created treacherous
travel conditions during the Wednesday
morning commute.
Snow and sleet amounts of an inch or
less fell across Litchfield County. In
addition, ice accretion from freezing
rain of up to one tenth of an inch
occurred.
30 0030EST
1230EST
A tight pressure gradient between a
strong low pressure system over northern
New England, and an approaching ridge of
high pressure from the west, led to
strong winds across eastern New York and
western New England, from Monday
evening, into midday Tuesday.
Wind gusts of 45 to 55 mph occurred.
This led to scattered power outages,
along with downed trees and tree limbs.
CTZ001-013 Northern Litchfield--Southern
Litchfield
31 0400EST
1630EST
A low pressure system tracked east from
northern Pennsylvania to just south of
Long Island during Wednesday, December
31st, before intensifying rapidly and
moving northeast off the New England
coast by Thursday morning on January
1st. As this low moved east, a swath of
moderate snowfall fell across northwest
Connecticut, with amounts ranging from 4
to 8 inches. The heaviest snow coincided
with the morning commute, creating
treacherous travel conditions, and
forcing many businesses to close, or
have delayed openings. Most schools were
already closed for the Holiday break.
CONNECTICUT, Southern
New Haven County
1 S Allington 12 0530EST
0600EST
Campbell Avenue was closed in West Haven
due to major flooding. Total rainfall at
New Haven/Tweed Airport was 3.93 inches.
The Quinnipiac River at Wallingford and
the Pomperaug River at Southbury both
rose to minor flooding levels. The
Quinnipiac River at Wallingford crested
at 10.81 ft. (flood stage is 10.0 ft.)
and the Pomperaug River at Southbury
crested at 9.85 ft. (flood stage is 9.0
ft.).
Middlesex County
1 ENE Durham 12 0600EST
0800EST
Flooding forced the closure of both ends
of Pickett Lane, blocking access to
Coginchaug High School and Kom School
from both Maiden Lane and Main Street in
Durham.
Fairfield County
2 E Bridgeport 12 0700EST
0730EST
The combination of heavy rain and the
Pequonnock River exceeding bankfull
caused flooding and the closing of Water
Street in Bridgeport. Total rainfall at
Sikorsky Airport in Bridgeport was 3.73
inches.
Middlesex County
Ivoryton 12 0730EST
2 SSE Center Brook 0800EST
Route 9 was closed in Essex Village due
to flooding.
New London County
2 NE Norwich 12 0830EST
Gibbs 2215EST
Major flooding was realized in the towns
of Yantic, Greeneville, Norwichtown, and
parts of East Great Plain from the
Yantic River reaching moderate and then
cresting at major flood stage. Many
businesses experienced flooding and were
forced to close while they pumped water
out of their storefronts. Several roads,
such as West Town Street in Yantic
Flats, were also closed. Total rainfall
amounts ranged from 3.25 inches to 4.5
inches in New London County. The Yantic
River at Yantic exceeded its flood stage
of 9.0 ft. at 6:30 am on Dec 12th. The
river exceeded moderate flood stage of
9.5 ft. at 7:15 am and major flood stage
of 11.5 ft. at 10:30 am before cresting
at 11.82 ft. at 11:45 am. The river
remained above flood stage through the
day and finally receded back within its
banks at 11:45 pm on Dec 12th.
Low pressure tracked northeast from the
Gulf of Mexico and over the local area
along a stationary boundary from
December 11th through December 12th. A
prolonged period of rain, which was
heavy at times, caused widespread
flooding across Connecticut with total
rainfall amounts ranging from 2.75
inches to 4.50 inches. The Yantic River
at Yantic rose to a stage of 11.82 feet,
which corresponds to major flood stage.
CTZ005>012 Northern Fairfield--Northern
Middlesex--Northern New Haven--Northern
New London--Southern Fairfield--Southern
Middlesex--Southern New Haven--Southern
New London
19 1150EST
20 0000EST
A weak surface low tracked from the
Midwest during the morning of December
19, to off the southern New Jersey coast
in the evening. At the same time, a
large, sprawling high over eastern
Canada estimated at 1035 mb nosed
southward along the lee of the
Appalachians. The combination of the two
features provided a strong overrunning
event with widespread snowfall across
southern Connecticut.
Snowfall amounts averaged between 5 and
9 inches, with the highest amounts
occurring across the interior. The
following are snowfall ranges across the
area: Fairfield County, 5.5 inches in
Greenwich to 8.5 inches in Danbury;
Middlesex, 5.8 inches in Haddam to 8.5
inches in Clinton; New Haven, 4.8 inches
in Meriden to 8.5 inches Fort Trumbull,
and New London County, 5.0 inches in
Niantic to 9.0 inches in Lisbon and
Norwich.
DELAWARE
DEZ001>004 Delaware Beaches--Inland
Sussex--Kent--New Castle
07 1000EST
1600EST
Gusty west to northwest winds occurred
during the daylight hours on the 7th
across Delaware. Peak wind gusts
averaged around 50 mph and included 53
mph in Lewes (Sussex County), 48 mph in
Dover (Kent County) and 47 mph at the
New Castle County Airport. The strong
winds were caused by the pressure
difference between an intensifying low
pressure system that was moving through
the Saint Lawrence Valley and a high
pressure system building east from the
central Mississippi Valley.
Kent County
Blackiston 11 1400EST
Milford 12 0200EST
Event precipitation totals included 3.31
inches in Kitts Hummock, 2.85 inches in
Dover and 2.51 inches in Viola.
Sussex County
Lincoln 11 1400EST
Delmar State Line Ar 12 0200EST
Event precipitation totals included 4.88
inches in Bethany Beach, 4.80 inches in
Selbyville, 2.79 inches in Georgetown
and 2.59 inches in Milford.
New Castle County
1 SSW Edge Moor 11 1929EST
1 SW Mt Cuba 12 0615EST
The Christina River at Coochs Bridge was
above its 10.5 foot flood stage from 729
p.m. EST through 954 p.m. EST on the
11th. It crested at 11.31 feet at 815
p.m. EST. The Red Clay Creek at Wooddale
was above its 7 foot flood stage from
401 a.m. EST through 615 a.m. EST on the
12th. It crested at 7.37 feet at 5 a.m.
EST.
Event precipitation totals included 2.88
inches in Townsend, 2.75 inches in
Blackbird and 2.60 inches at the New
Castle County Airport.
Heavy rain and flooding affected
Delaware on the 11th and 12th. Rain
began during the afternoon of the 10th
and continued through the 11th into the
early morning on the 12th. Rain fell at
its heaviest from the afternoon of the
11th until just after Midnight EST on
the 12th. Event precipitation totals
averaged two to five inches with the
highest amounts in Sussex County. In
addition to the poor drainage and field
flooding, a couple of rivers flooded in
New Castle County.
The heavy rain was caused by a low
pressure system that developed along the
Gulf Coast States on the 10th. This
intensifying low pressure system moved
northeast from Alabama on the morning of
the 11th, to central North Carolina
early in the evening on the 11th to near
Bridgeport, Connecticut at 7 a.m. EST on
the 12th.
DEZ002>004 Delaware Beaches--Inland Sussex--Kent
11 2200EST
12 0300EST
Strong southwest winds affected southern
half of Delaware from late in the
evening on the 11th into the early
morning of the 12th. Peak wind gusts
averaged around 45 mph. Some damaging
wind gusts also occurred as a line of
showers moved through the southern half
of the state.
The strong southwest winds were caused
by an intensifying low pressure system
that developed along the Gulf Coast
States on the 10th. This low pressure
system moved northeast from Alabama on
the morning of the 11th, to central
North Carolina early in the evening on
the 11th to near Bridgeport, Connecticut
at 7 a.m. EST on the 12th. The strongest
winds occurred when the region was in
the warm sector of the low pressure
system. Stronger winds aloft were able
to mix down more efficiently to the
surface. The strong winds ended after
the cold front moved through the area
early on the 12th.
Sussex County
Greenwood 12 0038EST
A line of showers was accompanied by
damaging winds as it moved through
Greenwood around 1 a.m. EST. A radio
tower lost part of its antenna, siding
was ripped away from a storage center
and the price sign and roof of a gas
station was damaged. No injuries were
reported.
Note: The estimated wind gust of 65
knots is equivalent to 75 mph.
Kent County
Milford 12 0058EST
A line of showers with damaging winds
knocked down a few trees and wires in
eastern Kent County.
Some damaging wind gusts accompanied the
showers located along the cold front in
central and southern Delaware early in
the morning on the 12th. Note: The
estimated wind gust of 50 knots is
equivalent to 58 mph.
DEZ001-002 Kent--New Castle
21 0300EST
1100EST
A wintry mix of mainly freezing rain and
some sleet fell during the first half of
the day across Kent and New Castle
Counties in Delaware. Plain rain fell
farther to the south. Around two tenths
of an inch of ice accrued on exposed
surfaces and took down some weak power
lines. Delmarva Power and Light reported
about 1,400 homes and businesses lost
power in their service area. The
greatest concentration in Delaware was
around Dover. Untreated roadways were
treacherous. Because this occurred on a
Sunday morning, the number of reported
accidents was relatively low. Speed
restrictions were placed on Interstate
495 in New Castle County.
The wintry mix was caused by a low
pressure system that moved from the
Mississippi Valley on the morning of the
20th east into southwest Ontario
Province on the morning of the 21st. A
secondary low pressure system formed on
the system's triple point over North
Carolina that morning and moved
northeast passing Cape Cod as it became
the primary low pressure system early in
the evening on the 21st. The secondary
low pressure system helped maintain
surface winds from the northeast and
kept temperatures below freezing until
the event ended on the morning of the
21st.
21 2100EST
22 0500EST
DEZ002 Kent
21 2100EST
22 0500EST
As a low pressure system intensified as
it moved from the Gulf of Maine into the
Canadian Maritimes overnight on the
21st, strong gusty west winds developed
across Delaware. The strongest winds
occurred across central and northern
Delaware from the late evening on the
21st into the pre-dawn hours on the
22nd. One large tree was knocked down in
Dover (Kent County). Peak wind gusts
averaged around 45 mph and included 44
mph at both the New Castle County
Airport and Sandtown (Kent County) and
40 mph at Slaughter Beach (Sussex
County).
DEZ001>004 Delaware Beaches--Inland
Sussex--Kent--New Castle
24 2000EST
25 0100EST
Strong southwest winds preceded a cold
frontal passage across Delaware on the
evening of the 24th until a little after
Midnight EST on the 25th. Peak wind
gusts averaged around 45 mph and
included 48 mph in Dover (Kent County),
46 mph in Georgetown (Sussex County), 45
mph in Sandtown (Kent County) and Walker
(New Castle County) and 43 mph in
Middletown (New Castle County).
31 1200EST
1600EST
DEZ002>004 Delaware Beaches--Inland Sussex--Kent
31 1200EST
1600EST
High winds buffeted Delaware during the
afternoon of the 31st. Numerous tree
limbs, trees and power lines were
knocked down. Delmarva Power and Light
reported about 40,000 homes and
businesses lost power in their service
area including Delaware. Power was last
restored to homes in New Castle County
as late as January 2, 2009. Delaware
Electric Cooperative reported about
1,900 homes and businesses lost power in
Kent and Sussex Counties.
In Sussex County, a vehicle was damaged
after a heating and air-conditioning
unit was blown off the roof of a store
in the Tanger Outlet Center in Rehoboth.
A large fire at the Irish Eyes
Restaurant in Lewes was tough to contain
and battle because of the high winds
during the afternoon. The restaurant was
severely damaged. in Kent County, a few
homes in Smyrna lost shingles. One
downed tree damaged a home, garage and
two vehicles. Although winds started to
decrease that evening, many outdoor
activities and fireworks in celebration
of the New Year were cancelled in Dover
and Wilmington.
Peak wind gusts included 74 mph in
Hartley (Kent County), 70 mph in Lewes
(Sussex County), 59 mph at the New
Castle County Airport and 51 mph in
Georgetown (Sussex County).
The high winds were caused by the large
pressure difference between a rapidly
intensifying Alberta Clipper type low
pressure system moving through New
England and a strong high pressure
system approaching from the upper
Mississippi Valley.
DEZ001-002 Kent--New Castle
31 1800EST
2200EST
The persistent and strong west to
northwest offshore flow caused blowout
tides to occur in upper Delaware Bay as
well as along tidal sections of the
Delaware River during the evening low
tide on the 31st. The low tide at Reedy
Point (New Castle County) was 2.4 feet
below mean lower low water. Blowout
tides start at 1.8 feet below mean lower
low water.
FLORIDA, Northeastern
Marion County
1 E Citra 11 0925EST
0930EST
Power lines reported down in the City of
Ocala approximately 0925 EST with a
couple of trees reported down near the
City of Citra around 09S0 EDT.
Note: The estimated wind gust of 50
knots is equivalent to 58 mph.
Alachua County
2 WSW Alachua 11 1015EST
Wind lifted partially off of a large
distribution center building on Peggy
Road.
Note: The estimated wind gust of 50
knots is equivalent to 58 mph.
Duval County
1 NNE Mandarin 11 1015EST
1016EST 0.39 5
Two small waterspouts were observed on
the St Johns River by a motorist near
the Buckman Bridge and lasted for half a
minute or less.
Baker County
2 WNW Knabb 11 1020EST
A squall line moved across north Florida
and into the Magaretta area. As the
system moved into the area of Mack Ruise
Road and Ruise Lane a microburst
impacted the area with an estimated 60
to 75 mph sustained winds. One mobile
home had a hole punched through its
roof. A second structure, built largely
of particle board with no reinforcing
bracing, was unroofed with portions of
the roof thrown approximately 100 yards
to the north. The damage made this
structure uninhabitable and it was the
most severely impacted structure. A
third structure had its sheet metal roof
removed from the southern portion of the
structure and thrown to the north. Two
trees were snapped at the base and laid
flat to the north. A witness described
seeing a vortex and a second witness
described being lifted off the ground by
that vortex. These reports are
consistent with a possible gustnado and
it is believed that this is what
contacted the most severely affected
structure.
Note: The estimated wind speed of 65
knots is equivalent to 75 mph.
Duval County
1 N Lake Forest 11 1030EST
1040EST
Damage occurred to ship containers at
Talleyrand Avenue at approximately 1030
a.m. EST. Other minor damage was
reported near Bayard at 10:40 a.m. EST.
A squall line moved east across north
Florida over night on Wednesday 12/10
and during the day on Thursday 12/11.
Note: The estimated wind gust of 50
knots is equivalent to 58 mph.
FLORIDA, Northwest
FLZ012-014 Bay--Gulf
10 1800EST
11 0000EST
Strong westerly winds ahead of a
vigorous storm system, which moved
northeast from the northern Gulf of
Mexico into Alabama and Georgia,
generated high surf, coastal flooding
and beach erosion along the Bay and Gulf
county coastline on the 10-11th.
FLZ013 Calhoun
11 0530EST
Strong winds associated with a line of
heavy showers downed trees and power
lines in Blountstown.
Wakulla County
5 SW Crawfordville 11 0615EST
Several trees and a TV antenna from a
mobile home on Lawhon Road were blown
down.
Note: The estimated wind gust of 50
knots is equivalent to 58 mph.
Jefferson County
Monticello 11 0625EST
A portion of the court house tin roof
was removed.
Note: The estimated wind gust of 50
knots is equivalent to 58 mph.
Madison County
7 W Madison 11 0630EST
4 N Lee 0635EST
Several trees were down across the
central portion of the county.
Note: The estimated wind gust of 50
knots is equivalent to 58 mph.
Taylor County
1 W Boyd 11 0630EST
Several trees were down on Williamson
Lane off Boyd Road.
A line of severe thunderstorms downed
numerous trees and caused structural
damage in portions of the Big Bend.
Note: The estimated wind gust of 50
knots is equivalent to 58 mph.
FLORIDA, West Central
Manatee County
1 SW Anna
Maria Sound 02 0200EST
Minor damage occurred to sheds, lanais,
and aluminum roofs on carports in a
mobile home park.
Note: The estimated wind gust of 43
knots is equivalent to 49 mph.
Sarasota County
Laurel 02 0330EST
Eight mobile homes received minor damage
to lanais and carports.
A cold front moved through the area in
the early morning hours with a weak
squall line traveling just ahead of the
front. The line produced two areas of
minor straight line wind damage with
wind gusts of 40 to 50 mph. Note: The
estimated wind gust of 43 knots is
equivalent to 49 mph.
FLZ039-042-048 Citrus--Hernando--Levy--Sumter
03 0000EST
0800EST
A cold front moved through the area late
in the evening on 12/1 and through the
early morning hours on 12/2. Cold air
settled into the Nature Coast through
the day on 12/2 and allowed for several
hours of sub-freezing temperatures on
the morning of 12/3.
Levy County experienced several hours of
sub-freezing temperatures with lows from
27 to 31 degrees across the county. The
lowest temperature of 27 degrees
occurred at the cooperative station six
miles southeast of Chiefland. Citrus
County experienced over 9 hours of
sub-freezing temperatures in some
locations, with the lowest temperature
of 25 degrees occurring at a mesonet
station near Inverness.
Hernando County also had over 9 hours of
sub-freezing temperatures with the
lowest temperature of 24 degrees
occurring at the FAWN station in
Brooksville.
Sumter County had lows ranging from 28
to 32 degrees, with the lowest
temperature of 28 degrees occurring at
the cooperative station in Bushnell.
Pinellas County
2 ESE Belmont 11 0814EST
A sheet metal roof was tom off of a
porch of a local residence.
A gulf low pressure system lifted
through the deep south and pushed a cold
front through the area. A strong and
fast moving squall line developed ahead
of the cold front, bringing winds of 40
to 50 mph as it moved through the area.
Note: The estimated wind gust of 43
knots is equivalent to 49 mph.
FLORIDA, West Panhandle
Santa Rosa County
Allentown 10 0730CST
0732CST
Thunderstorms produced gusty winds that
damaged metal buildings in Allentown,
Severe thunderstorms moved across
northwest Florida producing strong winds
that damaged metal storage buildings in
Allentown. Note: The estimated wind gust
of 58 knots is equivalent to 67 mph.
Escambia County
Cantonment 10 0830CST
1130CST
Slow moving thunderstorms produced 6 to
8 inches of rain around Cantonment. The
heavy rain caused several roads to be
temporarily closed and one house
suffered some minor water damage.
Number of Estimated
Persons Damage
Location Killed Injured Property Crops
CALIFORNIA, Extreme Southeast
CAZ032
0 0 0.00K
A strong low pressure system moved
slowly through Southern California,
producing very heavy snow. About a foot
of snow fell in the higher elevations of
Joshua Tree NP. Snow was also reported
in many lower desert areas. Some roads
were either closed or traffic was
restricted.
CAZ033
0 0 0.00K 0.00K
Plentiful moisture combined with light
winds to produce dense fog.
CALIFORNIA, North Central
CAZ015
0 0 0.00K 0.00K
0 0 0.00K 0.00K
High pressure over the area brought
light winds and clear skies. This
allowed the unusual case of a record
minimum and a record maximum both being
tied on the same day in the northern
Sacramento Valley.
CAZ068-069
0 0 0.00K 0.00K
A cold low pressure system dropped
southward into northern California
bringing 2 to 3 feet of snow
accumulation to a number of mountain
locations. Snowfall amounts of 4 to
nearly 5 feet were recorded at some of
the higher elevation ski resorts in the
northern Sierra Nevada Mountains. The
very cold airmass allowed for relatively
low snow levels. Snow amounts of more
than a foot fell at elevations as low as
3000 feet while amounts of 3 to 4 inches
fell in the foothills. Gusty winds
combined with the snow to cause poor
visibility at times. Numerous car
accidents were reported in slippery
conditions and downed trees caused power
outages to 11,000 customers in the
northern Sierra Nevada Mountain
communities.
CAZ015
0 0 0.00K 0.00K
A cool high pressure system in the wake
of a storm coupled with light winds and
clear skies to bring unseasonably cold
morning temperatures to the northern
Sacramento Valley.
CAZ013-063>064-
068-069
0 0 0.00K 0.00K
A winter storm which came in two waves
dropped heavy snow over the mountains of
interior northern California on the 24th
and 25th. The northern Sierra Nevada
Mountains received 1 to 3 feet of snow
above 6000 feet, with amounts of more
than 5 feet reported at Lassen National
Park. Wind gusts exceeding 60 mph were
recorded over higher mountain peaks. The
strong wind coupled with falling snow
brought limited visibilities over the
higher mountains. Holiday travel was
significantly curtailed with many roads
closed for a period of time, including
Interstate 80.
CALIFORNIA, Northeast
CAZ073
0 0 0.00K 0.00K
A winter storm brought strong winds to
the eastern Sierra and western Nevada.
CAZ070>073
0 0 0.00K 0.00K
A powerful winter storm brought heavy
snowfall to the eastern Sierra and
western Nevada.
CAZ073
0 1 0.00K 0.00K
One day after a powerful snowstorm
deposited up to 4 feet of snowfall in
the central Sierra Nevada an avalanche
occurred at Mammoth Mountain Ski Resort.
CAZ070>072
0 0 0.00K 0.00K
CAZ072-073
0 0 3.1M 0.00K
A low pressure system moved through the
northern Sierra and western Nevada and
brought snow and high winds to the
region.
0 0 0.00K 0.00K
CAZ073
0 0 0.00K 0.00K
CAZ072-073
0 0 0.2K 0.00K
A low pressure system brought snowfall
and strong winds to the eastern Sierra.
CAZ070>073
0 0 0.00K 0.00K
CAZ072
1 0 0.00K 0.00K
A winter storm brought over two feet of
snow to parts of the Sierra Nevada and a
rare white Christmas to much of western
Nevada. M21OU
CALIFORNIA, South Central
CAZ089>092
0 0 0.00K 0.00K
0 0 0.00K 0.00K
CAZ090>092
0 0 0.00K 0.00K
December began with the central
California interior under an upper-level
high-pressure ridge. This ridge brought
a stable airmass to the region, and
strengthened the inversion over the San
Joaquin Valley. As a result, areas of
low clouds and overnight and morning
dense fog were a daily occurrence during
the first few days of the month.
Visibilities near zero occurred in many
parts of the San Joaquin Valley. Drizzle
occurred during the morning of December
2nd, and enough moisture condensed out
of the lowest levels of the airmass for
a respite from widespread dense fog on
the 3rd and 4th, although patchy dense
fog did occur. Rather than widespread
dense fog, a layer of low altitude
stratus formed and persisted over the
San Joaquin Valley. More widespread
dense fog returned to the central and
southern San Joaquin Valley on the 5th
and 6th.
CAZ089>092
0 0 0.00K 0.00K
Behind a departing low, an upper-level
ridge over the eastern Pacific built
into California, bringing more stratus
and patchy dense fog during the morning
of December 8th. A weak upper-level
disturbance moved over the central
California interior, bringing light rain
to the central and southern San Joaquin
Valley; a few hundredths of an inch fell
at Fresno. High pressure rebuilt over
the central California interior,
bringing more dense fog to the central
and southern San Joaquin Valley. The
worst dense fog conditions were
prevalent during much of the overnight
and morning hours on December 9, 10, 11,
and 12, when visibilities were lowered
to near zero in some areas due to very
dense fog.
CAZ095-098-099
0 0 1.5K 0.00K
CAZ089-090
0 0 0.00K 0.00K
CAZ095>097
0 0 0.00K 0.00K
The weather pattern changed on December
12th, as a series of upper-level troughs
began moving through the central
California interior. These troughs
brought several days of precipitation to
the region, as well as a push of
unseasonably cold air. The first storm
brought up to an inch of rain to the
central and southern San Joaquin Valley,
and heavy snow to the Southern Sierra
Nevada and Tehachapi Mountains. Wofford
Heights, near the southern end of the
Sierra Nevada received a foot of new
snow on December 15th, as did Camp
Nelson, further north in Tulare County.
1648 PST: Ponderosa Basin 18 inches of
snow so far. Locations in the higher
terrain saw very high snowfall totals
with this storm. Between 2 to 4 feet of
snow fell at locations such as Tenaya
Lake, Poison Ridge, Lower Kibbie Ridge,
Pascoes, Wet Meadows, and Casa Vieja
Meadows. Despite the low snow levels,
little snow fell in the Sierra Nevada
foothills. This storm also brought
strong winds to the Kern Mountains and
the Deserts with peak wind gusts
reported between 50 to 55 mph.
0 0 0.00K 0.00K
CAZ099
0 0 0.00K 0.00K
CAZ089>091
0 0 0.00K 0.00K
Another major winter storm reached the
central California Interior during the
afternoon of December 16th. This storm
dropped south along the coast, and as a
result had a stronger impact on the Kern
County mountains and desert than on the
Sierra Nevada north of Kings Canyon. In
the Kern desert, California City had 6
inches of new snow, and Rosamond
received 2 inches. In the Kern County
mountains, a foot of snow fell at Alpine
Mountain. Rain that developed over San
Luis Obispo and Monterey Counties during
the afternoon of the 16th moved into the
west side of the San Joaquin Valley, and
actually produced light snowfall at
Harris Ranch.
As the storm crossed southern California
and into Arizona, skies cleared over the
central California interior. In the
central and southern San Joaquin Valley,
temperatures fell into the mid 20s
during the morning of December 18th. The
lowest temperatures were recorded in
Merced and western Fresno Counties,
where durations below 28 degrees were as
much as 5 hours.
CAZ098-099
0 0 1.0K 0.00K
CAZ096-097
0 0 0.00K 0.00K
CAZ095>097
0 0 0.00K 0.00K
CAZ089>092-098>
099
0 0 127.0K
Another winter storm arrived in Central
California on the 21st, bringing another
round of rain and mountain snow to the
region. SNOTEL observations in the
Southern Sierra Nevada indicated that
between one and two feet of snow fell
over the higher elevations on the 21st
and 22nd. Another storm reached
California on Christmas Eve, but there
was little (if any) break between the
instability showers behind the exiting
storm and the arrival of the new system.
Snow levels fell below 3000 feet with
this storm, with snow falling at
Kernville. Gusty winds moved through the
region on Christmas Day, with gusts to
around 40 mph hitting Hanford around
midday. Winds across the valley caused
isolated reports of downed powerlines
and small trees with peak wind gusts
near 50 mph with the cold front.
After this system passed, widespread
dense fog did not return for several
days. This lack of sky cover, combined
with light winds, allowed for good
radiational cooling. This resulted in
three days of freezing temperatures in
the central and southern San Joaquin
Valley, although widespread critical
temperatures were not reported.
Strong winds also occurred with this
storm across the Kern deserts with gusts
to near 50 mph common, especially near
and below canyons and passes.
0 0 0.00K 0.00K
CAZ089>092
0 0 0.00K 0.00K
CAZ089>092
0 0 0.00K 0.00K
After the last major winter storm of
December finally passed to the east of
central California, widespread dense fog
did not return for several days. This
lack of sky cover, combined with light
winds, allowed for good radiational
cooling. This resulted in three days of
sub-freezing temperatures in the central
and southern San Joaquin Valley,
although widespread critical
temperatures were not reported.
High pressure returned to the region by
the 30th, and widespread fog returned
with patchy dense fog over the central
and southern San Joaquin Valley just
after sunset during that evening. The
fog remained through the afternoon hours
of the 31st. The dense fog caused
visibilities to fall to between one-half
to one-quarter miles at times across
many sections of the San Joaquin Valley.
Cloud ceilings began to rise, and
visibility began to improve over the
central and south valley on New Year's
Eve, just before the start of the New
Year.
CALIFORNIA, Southeast
CAZ519-520
0 0 0.00K 0.00K
CAZ523
0 0 1.0K 0.00K
High winds buffeted the Mojave Desert
and southern Great Basin ahead of a
strong cold front.
CAZ519-524-525
0 0 0.00K 0.00K
A Pacific storm pushed moisture over
cold air in the Mojave Desert and
southern Great Basin, producing
significant snow as low as 3000 feet.
CAZ523>525
0 0 0.00K 0.00K
Just two days after one storm system
produced heavy snow in the higher
elevations of the Mojave Desert and
southern Great Basin, a second storm
came through on a track slightly south
of the first one. This storm produced
heavy snow down to the desert floor over
much of the Mojave Desert. Snow was seen
as low as 1500 feet.
CAZ519
0 0 0.00K 0.00K
CAZ525
0 0 0.00K 0.00K
A strong Pacific storm and associated
cold front traversed the Mojave Desert
and southern Great Basin, bringing heavy
snow to the higher elevations and high
winds to the lower elevations.
CALIFORNIA, Southwest
CAZ042
0 0 0.00K 0.00K
Dense fog resulted in flight delays and
auto accidents during a busy holiday
weekend.
CAZ048-056>058
0 0 5.0K 0.00K
A 1032 mb high over the Great Basin,
combined with strong upper-level North
to Northeasterly winds, led to strong
gusty offshore winds over Southern
California which knocked down trees and
telephone poles.
CAZ060
0 0 0.00K 0.00K
CAZ055
0 0 0.00K 0.00K
CAZ056-060
0 0 0.00K 0.00K
Orange County
Disneyland
0 14 250.00K 0.00K
Shortly after 0900 PST, the roof of a
classroom partially collapsed due to
heavy rain. Fourteen people, ages 17 to
50, were taken to the hospital with
minor injuries.
Orange County
1 NW Modjeska
0 0 10.00K 0.00K
Heavy rain in the Santiago Bum Area
caused mud and debris flows in Modjeska
Canyon. Many of the roads and yards that
were buried in mud by this debris flow
were impacted by similar debris flows
last winter. The amount of mud and rock
left in the wake of the debris flow was
extensive but damage to roads and
property was minor.
CAZ060
0 0 0.00K 0.00K
CAZ055-058-060
0 0 225.0K 0.00K
CAZ048-057
0 0 0.00K 0.00K
San Diego County
1 WNW San Ysidro
(NRS)Naf Imperial Be 0 3 250.00K 610.00K
Significant flooding in the Tijuana
River Valley resulted in the deaths of a
Tijuana man and numerous ranch and farm
animals. At least 21 people had to be
rescued, including 6 by helicopter.
Three men were taken to a hospital and
treated for hypothermia. An estimated 70
horses were also rescued. Three horses
drowned before they could be rescued and
another horse was later euthanized due
to a leg injury. Fifteen goats and an
unknown number of dogs also died in the
flood. One farmer lost $600,000 dollars
worth of his crop while another lost
$10,000 dollars worth of watermelons.
The one human death occurred outside the
forecast area in Tijuana, Mexico. The
flash flood occurred when both the
Tijuana River and a nearby flood control
channel became dammed with sediment,
trash, and other debris.
A pair of winter storms associated with
a vigorous, cold upper-low brought
periods of high winds, heavy rain, and
snow to the region from late on the 13th
through the 17th. The first storm
brought rain to the power elevations and
gusty winds and very heavy snow to the
mountains and deserts. Blizzard
conditions forced the closure of
mountain highways while heavy rain
caused a debris flow in the Santiago
Burn Area. Snowfall accumulations from
this first storm measured 31 inches at
Big Bear Lake, 30 inches at Running
Springs, and 24 inches at Forest Falls.
The second storm on the 17th was notable
for its significant rains in the low
deserts and heavy snowfall in the
mountains and high deserts. Heavy rain
caused significant flooding in the
Tijauna River valley. Surface offshore
pressure gradients and mid-level
easterly flow brought dry air into the
region, resulting in widespread
evaporative cooling and snow levels down
to the desert floor. The winter storm
dumped 20 inches of snow in Pinon Hills,
18 inches of snow in Hesperia, Lucerne
Valley, Palomar Mountain, and Julian, 16
inches of snow in Idyllwild, 14 inches
in Victorville, and even 4 inches in
Shelter Valley. Local snowfall amounts
in excess of 2 feet occurred in the San
Bernardino Mountains. Total snowfall
accumulations at Big Bear Lake for the 5
day period ending on the 17th was an
impressive 54 inches.
CAZ056-060-061
0 0 500.0K 0.00K
A weakening upper-level low, along with
a strong Polar Jet over California,
brought periods of light to moderate
rain, mountain snow, and strong winds
over the Christmas holiday. Rainfall
amounts ranged from one-quarter to
one-half inch at the lower elevations,
and one to two and one-half inches in
the coastal slopes. No significant
snowfall was reported. High winds downed
trees and power lines in Encinitas, Palm
Desert, and Palm Springs.
CALIFORNIA, Upper
CAZ085
0 0 0.00K 0.00K
Post-frontal showers behind the first
major winter storm of the season brought
locally significant snow to Southwest
Oregon and Northern California. Winter
Weather Advisories were in effect over
most of the area. Heavy Snow reports
were isolated, so this was for the most
part an Advisory event.
CAZ082
0 0 0.00K 0.00K
The second major winter storm of the
year moved into Southern Oregon and
Northern California at this time ... hot
on the heels of the first one. The main
impact of the storm was the low snow
levels which created widespread travel
difficulties ... but heavy snow was
reported in the mountains as well. A
Winter Storm Warning for Heavy Snow was
issued for California zone CAZ080 at
17/0334 PST, effective from
18/0400-19/0000 PST. It was shortened to
18/2200 PST at 18/1032 PST,
then expired at 18/2200 PST. A Winter
Storm Warning for Heavy Snow was issued
for California zones CAZ081/082/083/084
at 17/0334 PST, effective from
18/1000-19/0000 PST. It was shortened to
18/2200 PST at 18/1032 PST,
then cancelled at 18/1307 PST. A Winter
Storm Warning for Heavy Snow was issued
for California zone CAZ085 at 18/0336
PST, effective from 18/1000-19/0000
PST. It was shortened to 18/2200 PST at
18/1032 PST, then cancelled
at 18/1307.
0 0 0.00K 0.00K
Another winter storm hit Southern Oregon
and Northern California during this
interval, A Winter Storm Warning for
Heavy Snow was issued for California
zone CAZ080 above 2000 feet at 23/1155
PST, effective from 23/2200 until
23/1600 PST. The effective time was
extended to 25/1600 PST at 24/0517 PST,
and changed to 24/1600 through 25/1600
PST at 24/1023 PST. The warning was
cancelled at 24/1259 PST. A Winter Storm
Warning for Heavy Snow was issued for
California zone CAZ082 at 24/2134 PST,
effective from 24/2134 until 25/1900
PST. The warning was cancelled at
25/0933 PST.
CALIFORNIA, West South Central
CAZ053-054
0 0
Strong northerly winds developed across
the mountains of Ventura and Los Angeles
counties. Winds gusting as high as 76
MPH were reported.
Santa Barbara County
3 NNW El Encanto
0 0 10.00K 0.00K
Bands of showers produced intense
rainfall rates in and around the Gap
Fire bum area. The West Camino Cielo
sensor reported 1.47 inches of rainfall
in one hour. With such intense rainfall
rates, mud and debris flows were
reported. Fortunately, areas affected by
the mud and debris flows were protected
by a fence. Behind the fence, up to 6
feet of mud and debris was reported.
Santa Barbara County
3 NE Santa Barbara
0 0 10.00K 0.00K
Bands of showers produced intense
rainfall rates across the Tea Fire bum
area. Rainfall rates in excess of 0.50
inches per hours were reported. The
intense showers produced mud and debris
flows which forced the closure of East
Mountain Drive south of the burn scar.
CAZ053-054
0 0
A significant early-season winter storm
brought significant precipitation and
wind to Central and Southern California.
Rainfall totals across the forecast area
ranged between 1 and 3 inches. Along
with the rainfall totals, the rainfall
rates were high enough to produce mud
and debris flows near some bum areas. In
the mountains, significant winter storm
conditions were reported. Snowfall
totals between 10 and 16 inches were
reported. In addition, winds gusting to
around 55 mph produce areas of reduced
visibilities in snow and blowing snow.
CAZ054-059
0 0 0.00K 0.00K
A extremely cold early-season storm
heavy snow and strong winds to the
mountains and deserts of Los Angeles
county. Cold air associated with the
storm dropped snow levels down to around
1500 feet. With such low snow levels,
significant snowfall accumulations were
reported across the Antelope Valley
where elevations are around 2500 feet.
In addition to the snowfall, very strong
northeast winds gusting to between 35
and 55 MPH were reported.
CAZ053-054
0 0 0.00K 0.00K
Another early-season storm brought
winter storm conditions to the mountains
of Ventura and Los Angeles counties.
Snowfall totals up to 12 inches were
reported along with winds gusting to 55
MPH.
CALIFORNIA, Western
Santa Cruz County
3 ENE Mesa Vlg
0 0 15.00K 0.00K
A wet mountain road caused a man to veer
off highway 152 near Watsonville
resulting in his death.
CAZ508
0 0 15.0K 0.00K
CAZ507
0 0 20.0K 0.00K
Sonoma County
2 SW Sonoma
1 SW Schellville 0 0 25.00K 0.00K
Heavy rain caused a fatality of a 32
year-old man when his vehicle collided
with another vehicle. Highways 116 and
121 were closed for about three hours
after the collision.
CAZ508
0 0 20.0K 0.00K
A cold core low pressure system produced
winter storm conditions causing low
elevation snow, minor flooding and
isolated strong wind through the period
40162 through 17, 2009. Snow amounts
ranged from a few inches in the hills
around the San Francisco Bay Area to as
high as nine inches at Mount Hamilton.
CAZ508-513
0 0 81.0K 0.00K
A strong fast moving low pressure system
brought strong southerly winds and
mountain snow to the San Francisco Bay
area. This holiday wind event toppled
trees and left many with out power in
San Mateo and Santa Clara counties.
COLORADO, Central and Northeast
COZ035-038>039-
041-043
0 0 0.00K 0.00K
A storm system brought moderate to heavy
snowfall to areas in and near the Front
Range Foothills, Urban Corridor and
Palmer Divide. Storm totals included: 10
inches, 4 miles south of Boulder; 8.5
inches, 3 miles southwest of Golden; 8
inches, 12 miles southeast of Aurora; 7
inches at Boulder, 1 mile east of
Buckhorn Mountain, Fort Collins and
Genessee. A localized band of heavy snow
also produced nearly 7 inches of snow in
and around Greeley.
COZ034
0 1 0.00K 0.00K
An avalanche partially buried a skier on
Berthoud Pass. The skier suffered minor
injuries.
0 0 0.00K 0.00K
A second avalanche struck a skier on
Berthoud Pass. The person was caught and
carried for some distance, but was not
injured.
COZ036-039-041
0 0 0.00K 0.00K
COZ040
0 0 0.00K 0.00K
A Pacific storm system, coupled with
upslope winds; produced heavy snow in
and near the foothills of Boulder,
Jefferson and Douglas Counties, and
along the Palmer Divide. In the Front
Range Foothills, storm totals included:
15 inches, 3 miles southwest of
Roxborough State Park and Strontia
Springs Dam; 14 inches at Ken Caryl; 13
inches, 3 miles southwest of Conifer,
Genesee, 3 miles southeast of Indian
Hills, 6 miles west of Littleton and
Lookout Mountain; 11 inches, 3 miles
southwest of Morrison; 10 inches, 7
miles southwest of Boulder and 6 miles
southwest of Evergreen. In Boulder and
in locations west and south of Denver,
storm totals included: 13 inches near
Kassler, 10 inches, 2 miles southwest of
Larkspur; 8.5 inches, 8 miles south of
Franktown, Louisville and 7 miles south
of Sedalia; 8 inches in Boulder and 1
mile east of Castle Rock, 7 inches at
Lafayette and 3 miles south of
Littleton, 6.5 inches in Arvada and 3
miles east of Highlands Ranch, with 6
inches at Lakewood and Wheat Ridge.
COZ034
0 0 0.00K 0.00K
A storm system brought heavy snow to
portions of the North Central Mountains.
The heaviest snowfall was reported in
Summit County. Storm totals included: 13
inches at the Eisenhower Tunnel, 11.5
inches, 7.5 miles northwest of
Silverthome, with 8 inches at Frisco.
COZ035
0 0 50.0K 0.00K
Strong winds in Estes Park caused a roof
under construction at the YMCA of the
Rockies to collapse. The wind caught the
end section of the roof truss, and in a
domino effect, blew it into the second
and thirds trusses, on down the line of
the roof.
COZ033
2 0 0.00K
Two snowmobilers were killed on the side
of Gravel Mountain near Grand Lake. The
avalanche occurred when one of the men
tried to assist the other, after his
snowmobile had become stuck in the snow.
Both men were buried by the slide and
died at the scene of the accident.
Another snowmobiler was partially buried
in the avalanche, but was not injured.
M19OU, M38OU
COZ035-038-039
0 0 7.0M
Very strong Chinook winds blasted areas
in and near the Front Range Foothills of
Larimer, Boulder and Jefferson Counties.
The wind blew down trees and power
poles, downed electrical lines and
fences, and damaged homes and vehicles.
Scattered power outages were reported
all along the Front Range. In
Metropolitan Denver alone, 24,000 Xcel
customers were affected by the outages.
Strong crosswinds also blew over some
semi-trailers along Interstate 25, near
the Wyoming state line. In Larimer
County, two small wildfires were sparked
by downed power lines in Rist Canyon and
near the Laporte/Bellvue areas. Four
planes were damaged at the Vance Brand
Municipal Airport in Longmont; one was
wrecked. Insurance companies estimated
up to $7 million in damage along the
Front Range and adjacent plains, making
it the 4th costliest windstorm to hit
Colorado.
Peak wind gusts included: 1 11 mph, 3
miles north of Masonville; 98 mph at
Carter Lake; 87 mph at the National Wind
Technology Center; 86 mph, 2 miles north
of Longmont and at Pinewood Lake; 81
mph, 3 miles east of Gold Hill; 78 mph,
2 miles west-southwest of Broomfield; 77
mph at Erie; 76 mph, 21 miles north of
New Raymer and 75 mph at Lafayette.
0 0 25.0K
COZ039
0 0
Another brief period of high winds
occurred in and near the foothills of
Boulder and Jefferson Counties. In
Nederland, the strong wind snapped a
blue spruce which landed on a nearby
propane tank. Some roofs in the
immediate area were damaged. Power lines
were also downed; which left 126
residence without electricity for about
6 hours. Peak wind gusts included 90 mph
at the National Wind Technology Center,
and 89 mph, 6 miles northwest of
Boulder.
COLORADO, South Central and Southeast
COZ072>075-078>
080-087>088
0 0 0.00K 0.00K
A strong upper level disturbance
produced significant amounts of snow
across the southeastern mountains and
the southern I-25 Corridor. Seven to 10
inches of snow fell around Walsenburg
(Huerfano County) and locally in the
Monument area (northern El Paso County)
... 12 to 15 inches in and near Colorado
City ... Aguilar ... Trinidad and Beulah
(Las Animas County and Pueblo County)
... 18 to 19 inches in Rye and La Veta
(Pueblo County and Huerfano County) ...
25 inches on the north slopes of the
Spanish Peaks (Huerfano County) ... and
an impressive 34 inches in and near
Cuchara (Huerfano County).
COZ058-060-066-
068
0 0 0.00K 0.00K
A storm system produced generous amounts
of snow ... mainly in the mountains of
southern Colorado. Some snow amounts
include up to 6 inches in Pueblo West
(Pueblo County) ... 13 inches on Monarch
Pass (Chaffee County) ... and an
impressive 32 inches near the summit of
Wolf Creek Pass (Mineral County).
0 0 0.00K 0.00K
COZ067-068
0 0 0.00K 0.00K
Strong upslope flow ... accompanied with
abundant moisture ... impacted mainly
the eastern San Juan and La Garita
Mountains in and near ... and portions
of the Sangre de Cristo Mountains. Some
of the higher snow amounts were ... 6
inches Cuchara (Huerfano County) ... 7
inches 7 miles west of Westcliffe
(Custer County) ... 8 inches on Monarch
Pass (Chaffee County) ... and 13 inches
near the summit of Wolf Creek Pass
(Mineral County).
COZ060-066-068
0 0 0.00K 0.00K
Strong upslope flow ... with abundant
moisture impacted the eastern San Juan
and La Garita Mountains ... and the
eastern Sawatch Range. The higher
accumulations ranged from 10 to 14
inches on Monarch Pass and points north
... and 33 inches near the summit of
Wolf Creek Pass (Mineral County).
0 0 0.00K 0.00K
COZ060-066-067
0 0 0.00K 0.00K
COZ060-066-068
0 0 0.00K 0.00K
Another in a series of winter storms
produced blizzard conditions and copious
amounts of snow to the eastern San Juan
and La Garita Mountains ... the Upper
Rio Grande Valley ... and the eastern
Sawatch Range. Some of the higher snow
totals were ... 17 inches on Monarch
Pass (Chaffee County) and 29 inches near
the summit of Wolf Creek Pass (Mineral
County). This heavy snow was accompanied
by winds gusting to 70 mph at times.
COZ073-075-080-
082
0 0 0.00K 0.00K
High winds aloft produced high winds
over the higher elevations of the Wet
Mountains ... the Sangre De Cristo
Mountains ... and Pikes Peak. Strong
winds occurred in the lower elevations
of the eastern mountains and across much
of the 1-25 Corridor.
COZ081-084
0 0 2.0M 0.00K
Strong to high winds occurred over
northern parts of El Paso County and
Teller County. Winds gusted up to 80 mph
knocking around 20 trees down. A
semi-trailer was overturned near mile
marker 148 on 1-25 in northern Colorado
Springs. Four power failures affected
nearly 1000 customers on the north side
of Colorado Springs.
COLORADO, West
COZ018
0 0 15.0K 0.00K
A moist northwest flow produced
significant snowfall and strong winds
across the area.
COZ004-010-013
0 0 0.00K 0.00K
An upper level disturbance combined with
orographic lift in northwest flow
produced significant snowfall across the
northern mountains of western Colorado.
COZ019
0 0 0.00K 0.00K
COZ018
0 0 0.00K 0.00K
COZ004-009-012>
014-017
0 0 0.00K 0.00K
A low pressure system brought
significant snowfall to the mountains of
western Colorado.
0 0 0.00K 0.00K
COZ010-012-018>
019
0 0 0.00K 0.00K
COZ009
0 0 0.00K 0.00K
COZ001
0 0 0.00K 0.00K
COZ002
0 0 0.00K 0.00K
COZ005
0 0 0.00K 0.00K
COZ008-014
0 0 0.00K 0.00K
COZ006-007
0 0 0.00K 0.00K
COZ017
0 0 0.00K 0.00K
COZ011-021
0 0 0.00K 0.00K
COZ022-023
0 0 0.00K 0.00K
A strong Pacific low pressure system and
cold front swept across western Colorado
and produced significant snowfall and
strong winds.
COZ010-018
1 0 0.00K 0.00K
A storm system dropped heavy snow onto
weak snow layers in the mountains which
resulted in numerous avalanches.
COZ003-009>010-
012>013-017>019-
021-023
0 0 0.00K 0.00K
COZ008-011
0 0 0.00K 0.00K
COZ014
0 0 0.00K 0.00K
COZ020
0 0 0.00K 0.00K
COZ002
0 0 0.00K 0.00K
A Pacific storm system brought abundant
moisture and cold air to western
Colorado resulting in widespread heavy
snow and strong winds across the
mountains and much of the lower valleys.
Numerous travel restrictions were
enacted on many mountain roads and
highways.
COZ012
1 0 0.00K 0.00K
A snowboarder was killed by an
avalanche. M36OU
COZ007-008
0 0 0.00K 0.00K
COZ001
0 0 0.00K 0.00K
A Pacific storm system brought abundant
moisture and cold air to western
Colorado resulting in widespread heavy
snow and strong winds across the
mountains and much of the lower valleys.
Numerous travel restrictions were
enacted on many mountain roads and
highways.
COZ004-009-012>
013
0 0 0.00K 0.00K
A low pressure system moved across
western Colorado and produced
significant snowfall across the
northern and central mountains.
0 0 0.00K 0.00K
COZ017
0 0 0.00K 0.00K
COZ012-018-019
0 0 0.00K 0.00K
COZ001
0 0 0.00K 0.00K
COZ003-008-013
0 0 0.00K 0.00K
COZ002-005-014
0 0 0.00K 0.00K
COZ007-022-023
0 0 0.00K 0.00K
COZ021
0 0 0.00K 0.00K
COZ006-010
0 0 0.00K 0.00K
COZ011-020
0 0 0.00K 0.00K
A strong low pressure system preceded by
a deep and moist southwest flow brought
a prolonged period of winter weather and
widespread heavy snow to western
Colorado.
COZ003-009-012>
014-017>019-021>
023
0 0 0.00K 0.00K
COZ004-008-011-
020
0 0 0.00K 0.00K
COZ006-007
0 0 0.00K 0.00K
COZ009-018-019
0 0 0.00K 0.00K
A series of strong Pacific disturbances
brought a prolonged period of heavy snow
and strong winds to western Colorado
over the Christmas holiday. This storm
impacted all of western Colorado,
resulting in widespread travel
difficulties and many temporary road
closures. Blizzard conditions occurred
across much of the central and southern
mountain areas.
Mesa County
7 NW Mack
0 0 0.00K 0.00K
A fast moving thunderstorm produced a
severe wind gust. Note: The measured
wind gust of 55 knots is equivalent to
63 mph.
COZ012
0 0 0.00K 0.00K
COZ002
0 0 0.00K 0.00K
COZ001-005
0 0 0.00K 0.00K
A series of strong Pacific disturbances
brought a prolonged period of heavy snow
and strong winds to western Colorado
over the Christmas holiday. This storm
impacted all of western Colorado,
resulting in widespread travel
difficulties and many temporary road
closures. Blizzard conditions occurred
across much of the central and southern
mountain areas.
COZ010
0 1 0.00K 0.00K
A man was injured after being caught in
an avalanche.
CONNECTICUT, Northeast
Hartford County
Burlington
0 0 0.00K 0.00K
Rock Road in Burlington was closed due
to flooding.
Hartford County
1 SE Wapping
Highland Park 0 0 3.00K 0.00K
The Hockanum River in Manchester
overflowed its banks at New State Road
with the water level over picnic table
seats near Adams Street.
While a major ice storm affected
Massachusetts and Southern New
Hampshire, three to four inches of rain
fell in Connecticut resulting in small
stream and some street flooding.
CTZ002>004
0 0 0.00K 0.00K
An intensifying coastal low spread heavy
snow across southern New England. Snow
began in the early afternoon across
Connecticut and southwestern
Massachusetts, spreading quickly across
Massachusetts, Rhode Island, and
southern New Hampshire. Eight to twelve
inches of snow fell across much of
southern New England.
0 0 0.00K 0.00K
CTZ004
0 0 0.00K 0.00K
A fast moving low pressure system moved
through Southern New England bringing
39913 inches of snow to the region. In
addition, strong cold advection and
pressure rises resulted in very cold
temperatures, strong winds, and bitterly
cold wind chills.
CONNECTICUT, Northwest
CTZ001-013
0 0 2.0K 0.00K
The combination of a low pressure system
tracking east across northern New York
State, and a second low pressure rapidly
developing across the Canadian Maritimes
created a tight pressure gradient across
much of eastern New York and western New
England during Sunday afternoon and
evening, December 7th. This tight
pressure gradient led to strong west to
northwest winds, with sustained speeds
of 15 to 30 mph, and gusts of up to 55
mph. These strong winds led to some
downed tree limbs, and subsequent
scattered power outages across the
region Sunday afternoon and evening.
0 0 0.00K
CTZ013
0 0 0.00K 0.00K
A cold front moved across eastern New
York and western New England on
Wednesday, December 10th, ushering a
cold airmass into the region. A low
pressure system developed over the
southeast states Wednesday and Wednesday
night. This storm then headed northeast
Thursday and Thursday night, December
11th, with precipitation spreading
northward well in advance of the low.
The low continued to track northeast,
passing over the mid Atlantic region
late Thursday night, and over the New
York City Metropolitan area and southern
New England Friday morning, December
12th. The low then moved to the Canadian
Maritimes Friday night.
As the storm approached, warmer air
moved in aloft, and with a cold airmass
remaining in place at the surface, this
set the stage for a significant mixed
precipitation event. The precipitation
came down heavy at times, especially
Thursday night. Hourly precipitation
rates of one quarter to one third of an
inch were reported for several hours in
the form of freezing rain across much of
the region. By the time the
precipitation tapered off Friday
morning, ice accretion from freezing
rain ranged from one half to three
quarters of an inch, with the greatest
amounts occurring across higher
elevations of northern Litchfield
County. The ice storm resulted in
numerous downed trees and resultant
power outages across northwest
Connecticut, where an estimated 5,000
utility customers lost power. Many
schools and businesses were closed
Friday due to the loss of power.
Litchfield County
Kent
1 WNW Birch Hill 0 0 15.00K 0.00K
Heavy rain caused several streams to
flood near Kent, resulting in road
closures. In addition, moderate flooding
along the Housatonic River in New
Milford forced a supermarket to remove
food to prevent flood damage.
A cold front moved across eastern New
York and western New England on
Wednesday, December 10th, ushering a
cold airmass into the region. A low
pressure system developed over the
southeast states Wednesday and Wednesday
night. This storm then headed northeast
Thursday and Thursday night, December
11th, with precipitation spreading
northward well in advance of the low.
The low continued to track northeast,
passing over the mid Atlantic region
late Thursday night, and over the New
York City Metropolitan area and southern
New England Friday morning, December
12th. The low then moved to the Canadian
Maritimes Friday night.
As the storm approached, warmer air
moved in aloft, and with a cold airmass
remaining in place at the surface, this
set the stage for a significant mixed
precipitation event. The precipitation
came down heavy at times, especially
Thursday night. Hourly precipitation
rates of one quarter to one third of an
inch were reported for several hours in
the form of freezing rain across much of
the region.
Total liquid amounts of 1 to just under
4 inches fell across Litchfield County.
This heavy rain led to minor flooding,
especially in urban and low lying areas
due to ice blocking storm drains.
In addition, moderate flooding occurred
along several portions of the Housatonic
River. In New Milford, a supermarket had
to have the food removed to prevent
flood damage as the Housatonic River
flooded the store.
CTZ001-013
0 0 0.00K 0.00K
A low pressure system tracked northeast
from the Tennessee Valley late Tuesday
night December 16th, to Lake Ontario by
Wednesday afternoon December 17th, while
another low pressure system developed
off the Delmarva Peninsula and tracked
northeast, passing just east of Cape Cod
late Wednesday. This combination of
systems brought a swath of light snow,
sleet and freezing rain across northwest
Connecticut, beginning late Tuesday
evening, and ending around midday
Wednesday. Total snow and sleet amounts
ranged from 1 to 2 inches, with the
greatest amounts across higher
elevations. In addition, ice accretion
of up to one tenth of an inch occurred
across portions of Litchfield County.
This wintry mix led to treacherous
travel conditions for the Wednesday
morning commute.
0 0 0.00K 0.00K
CTZ013
0 0 0.00K 0.00K
A low pressure system tracked from the
southwestern U.S. Thursday morning
December 18th, to southern Illinois by
Friday morning December 19th, to a
position well off the New England coast
by Saturday morning December 20th. This
low spread a swath of moderate to heavy
snowfall across much of east central New
York and western New England, beginning
Friday afternoon, and ending early
Saturday morning. Snowfall totals
generally ranged from 6 to 10 inches
across northwest Connecticut. This heavy
snowfall closed numerous businesses and
schools Friday through Saturday, and
also led to treacherous travel
conditions.
CTZ001
0 0 0.00K 0.00K
A low pressure system tracked across the
Great Lakes late Saturday December 20th,
into Sunday December 21st. As this low
moved into the eastern Great Lakes, a
second low pressure developed south of
Long Island Sunday afternoon, and
intensified rapidly, moving northeast
off the northern New England coast by
Monday morning December 22nd.
A swath of light to moderate snow fell
across northwest Connecticut, beginning
Sunday morning, and tapering off by
Sunday evening.
Snowfall accumulations generally ranged
from 3 to 6 inches, with the greatest
amounts occurring across the higher
elevations of northern Litchfield
County.
Strong winds and snow squalls persisted
in the wake of this storm system for
Sunday night and Monday.
0 0 0.00K 0.00K
CTZ013
0 0 0.00K 0.00K
A low pressure system tracked rapidly
northeast, from the Great Lakes
Wednesday morning on December 24th, to
off the northern New England coast by
Thursday morning on December 25th.
A warm front associated with this low
approached eastern New York and western
New England during Wednesday, spreading
a wintry mix of snow, sleet and freezing
rain during the morning hours, before
changing to plain rain by late Wednesday
afternoon.
This wintry mix created treacherous
travel conditions during the Wednesday
morning commute.
Snow and sleet amounts of an inch or
less fell across Litchfield County. In
addition, ice accretion from freezing
rain of up to one tenth of an inch
occurred.
0 0 3.0K 0.00K
A tight pressure gradient between a
strong low pressure system over northern
New England, and an approaching ridge of
high pressure from the west, led to
strong winds across eastern New York and
western New England, from Monday
evening, into midday Tuesday.
Wind gusts of 45 to 55 mph occurred.
This led to scattered power outages,
along with downed trees and tree limbs.
CTZ001-013
0 0 0.00K 0.00K
A low pressure system tracked east from
northern Pennsylvania to just south of
Long Island during Wednesday, December
31st, before intensifying rapidly and
moving northeast off the New England
coast by Thursday morning on January
1st. As this low moved east, a swath of
moderate snowfall fell across northwest
Connecticut, with amounts ranging from 4
to 8 inches. The heaviest snow coincided
with the morning commute, creating
treacherous travel conditions, and
forcing many businesses to close, or
have delayed openings. Most schools were
already closed for the Holiday break.
CONNECTICUT, Southern
New Haven County
1 S Allington
0 0 0.00K 0.00K
Campbell Avenue was closed in West Haven
due to major flooding. Total rainfall at
New Haven/Tweed Airport was 3.93 inches.
The Quinnipiac River at Wallingford and
the Pomperaug River at Southbury both
rose to minor flooding levels. The
Quinnipiac River at Wallingford crested
at 10.81 ft. (flood stage is 10.0 ft.)
and the Pomperaug River at Southbury
crested at 9.85 ft. (flood stage is 9.0
ft.).
Middlesex County
1 ENE Durham
0 0 0.00K 0.00K
Flooding forced the closure of both ends
of Pickett Lane, blocking access to
Coginchaug High School and Kom School
from both Maiden Lane and Main Street in
Durham.
Fairfield County
2 E Bridgeport
0 0 0.00K 0.00K
The combination of heavy rain and the
Pequonnock River exceeding bankfull
caused flooding and the closing of Water
Street in Bridgeport. Total rainfall at
Sikorsky Airport in Bridgeport was 3.73
inches.
Middlesex County
Ivoryton
2 SSE Center Brook 0 0 0.00K 0.00K
Route 9 was closed in Essex Village due
to flooding.
New London County
2 NE Norwich
Gibbs 0 0 0.00K 0.00K
Major flooding was realized in the towns
of Yantic, Greeneville, Norwichtown, and
parts of East Great Plain from the
Yantic River reaching moderate and then
cresting at major flood stage. Many
businesses experienced flooding and were
forced to close while they pumped water
out of their storefronts. Several roads,
such as West Town Street in Yantic
Flats, were also closed. Total rainfall
amounts ranged from 3.25 inches to 4.5
inches in New London County. The Yantic
River at Yantic exceeded its flood stage
of 9.0 ft. at 6:30 am on Dec 12th. The
river exceeded moderate flood stage of
9.5 ft. at 7:15 am and major flood stage
of 11.5 ft. at 10:30 am before cresting
at 11.82 ft. at 11:45 am. The river
remained above flood stage through the
day and finally receded back within its
banks at 11:45 pm on Dec 12th.
Low pressure tracked northeast from the
Gulf of Mexico and over the local area
along a stationary boundary from
December 11th through December 12th. A
prolonged period of rain, which was
heavy at times, caused widespread
flooding across Connecticut with total
rainfall amounts ranging from 2.75
inches to 4.50 inches. The Yantic River
at Yantic rose to a stage of 11.82 feet,
which corresponds to major flood stage.
CTZ005>012
0 0 0.00K
A weak surface low tracked from the
Midwest during the morning of December
19, to off the southern New Jersey coast
in the evening. At the same time, a
large, sprawling high over eastern
Canada estimated at 1035 mb nosed
southward along the lee of the
Appalachians. The combination of the two
features provided a strong overrunning
event with widespread snowfall across
southern Connecticut.
Snowfall amounts averaged between 5 and
9 inches, with the highest amounts
occurring across the interior. The
following are snowfall ranges across the
area: Fairfield County, 5.5 inches in
Greenwich to 8.5 inches in Danbury;
Middlesex, 5.8 inches in Haddam to 8.5
inches in Clinton; New Haven, 4.8 inches
in Meriden to 8.5 inches Fort Trumbull,
and New London County, 5.0 inches in
Niantic to 9.0 inches in Lisbon and
Norwich.
DELAWARE
DEZ001>004
0 0 5.0K 0.00K
Gusty west to northwest winds occurred
during the daylight hours on the 7th
across Delaware. Peak wind gusts
averaged around 50 mph and included 53
mph in Lewes (Sussex County), 48 mph in
Dover (Kent County) and 47 mph at the
New Castle County Airport. The strong
winds were caused by the pressure
difference between an intensifying low
pressure system that was moving through
the Saint Lawrence Valley and a high
pressure system building east from the
central Mississippi Valley.
Kent County
Blackiston
Milford 0 0 0.00K 0.00K
Event precipitation totals included 3.31
inches in Kitts Hummock, 2.85 inches in
Dover and 2.51 inches in Viola.
Sussex County
Lincoln
Delmar State Line Ar 0 0 0.00K 0.00K
Event precipitation totals included 4.88
inches in Bethany Beach, 4.80 inches in
Selbyville, 2.79 inches in Georgetown
and 2.59 inches in Milford.
New Castle County
1 SSW Edge Moor
1 SW Mt Cuba 0 0 0.00K 0.00K
The Christina River at Coochs Bridge was
above its 10.5 foot flood stage from 729
p.m. EST through 954 p.m. EST on the
11th. It crested at 11.31 feet at 815
p.m. EST. The Red Clay Creek at Wooddale
was above its 7 foot flood stage from
401 a.m. EST through 615 a.m. EST on the
12th. It crested at 7.37 feet at 5 a.m.
EST.
Event precipitation totals included 2.88
inches in Townsend, 2.75 inches in
Blackbird and 2.60 inches at the New
Castle County Airport.
Heavy rain and flooding affected
Delaware on the 11th and 12th. Rain
began during the afternoon of the 10th
and continued through the 11th into the
early morning on the 12th. Rain fell at
its heaviest from the afternoon of the
11th until just after Midnight EST on
the 12th. Event precipitation totals
averaged two to five inches with the
highest amounts in Sussex County. In
addition to the poor drainage and field
flooding, a couple of rivers flooded in
New Castle County.
The heavy rain was caused by a low
pressure system that developed along the
Gulf Coast States on the 10th. This
intensifying low pressure system moved
northeast from Alabama on the morning of
the 11th, to central North Carolina
early in the evening on the 11th to near
Bridgeport, Connecticut at 7 a.m. EST on
the 12th.
DEZ002>004
0 0 3.0K 0.00K
Strong southwest winds affected southern
half of Delaware from late in the
evening on the 11th into the early
morning of the 12th. Peak wind gusts
averaged around 45 mph. Some damaging
wind gusts also occurred as a line of
showers moved through the southern half
of the state.
The strong southwest winds were caused
by an intensifying low pressure system
that developed along the Gulf Coast
States on the 10th. This low pressure
system moved northeast from Alabama on
the morning of the 11th, to central
North Carolina early in the evening on
the 11th to near Bridgeport, Connecticut
at 7 a.m. EST on the 12th. The strongest
winds occurred when the region was in
the warm sector of the low pressure
system. Stronger winds aloft were able
to mix down more efficiently to the
surface. The strong winds ended after
the cold front moved through the area
early on the 12th.
Sussex County
Greenwood 0 0 100.00K 0.00K
A line of showers was accompanied by
damaging winds as it moved through
Greenwood around 1 a.m. EST. A radio
tower lost part of its antenna, siding
was ripped away from a storage center
and the price sign and roof of a gas
station was damaged. No injuries were
reported.
Note: The estimated wind gust of 65
knots is equivalent to 75 mph.
Kent County
Milford 0 0 0.00K 0.00K
A line of showers with damaging winds
knocked down a few trees and wires in
eastern Kent County.
Some damaging wind gusts accompanied the
showers located along the cold front in
central and southern Delaware early in
the morning on the 12th. Note: The
estimated wind gust of 50 knots is
equivalent to 58 mph.
DEZ001-002
0 0 0.00K 0.00K
A wintry mix of mainly freezing rain and
some sleet fell during the first half of
the day across Kent and New Castle
Counties in Delaware. Plain rain fell
farther to the south. Around two tenths
of an inch of ice accrued on exposed
surfaces and took down some weak power
lines. Delmarva Power and Light reported
about 1,400 homes and businesses lost
power in their service area. The
greatest concentration in Delaware was
around Dover. Untreated roadways were
treacherous. Because this occurred on a
Sunday morning, the number of reported
accidents was relatively low. Speed
restrictions were placed on Interstate
495 in New Castle County.
The wintry mix was caused by a low
pressure system that moved from the
Mississippi Valley on the morning of the
20th east into southwest Ontario
Province on the morning of the 21st. A
secondary low pressure system formed on
the system's triple point over North
Carolina that morning and moved
northeast passing Cape Cod as it became
the primary low pressure system early in
the evening on the 21st. The secondary
low pressure system helped maintain
surface winds from the northeast and
kept temperatures below freezing until
the event ended on the morning of the
21st.
0 0 1.0K 0.00K
DEZ002
0 0 4.0K 0.00K
As a low pressure system intensified as
it moved from the Gulf of Maine into the
Canadian Maritimes overnight on the
21st, strong gusty west winds developed
across Delaware. The strongest winds
occurred across central and northern
Delaware from the late evening on the
21st into the pre-dawn hours on the
22nd. One large tree was knocked down in
Dover (Kent County). Peak wind gusts
averaged around 45 mph and included 44
mph at both the New Castle County
Airport and Sandtown (Kent County) and
40 mph at Slaughter Beach (Sussex
County).
DEZ001>004
0 0 10K 0.00K
Strong southwest winds preceded a cold
frontal passage across Delaware on the
evening of the 24th until a little after
Midnight EST on the 25th. Peak wind
gusts averaged around 45 mph and
included 48 mph in Dover (Kent County),
46 mph in Georgetown (Sussex County), 45
mph in Sandtown (Kent County) and Walker
(New Castle County) and 43 mph in
Middletown (New Castle County).
0 0 10.0K 0.00K
DEZ002>004
0 0 55.0K 0.00K
High winds buffeted Delaware during the
afternoon of the 31st. Numerous tree
limbs, trees and power lines were
knocked down. Delmarva Power and Light
reported about 40,000 homes and
businesses lost power in their service
area including Delaware. Power was last
restored to homes in New Castle County
as late as January 2, 2009. Delaware
Electric Cooperative reported about
1,900 homes and businesses lost power in
Kent and Sussex Counties.
In Sussex County, a vehicle was damaged
after a heating and air-conditioning
unit was blown off the roof of a store
in the Tanger Outlet Center in Rehoboth.
A large fire at the Irish Eyes
Restaurant in Lewes was tough to contain
and battle because of the high winds
during the afternoon. The restaurant was
severely damaged. in Kent County, a few
homes in Smyrna lost shingles. One
downed tree damaged a home, garage and
two vehicles. Although winds started to
decrease that evening, many outdoor
activities and fireworks in celebration
of the New Year were cancelled in Dover
and Wilmington.
Peak wind gusts included 74 mph in
Hartley (Kent County), 70 mph in Lewes
(Sussex County), 59 mph at the New
Castle County Airport and 51 mph in
Georgetown (Sussex County).
The high winds were caused by the large
pressure difference between a rapidly
intensifying Alberta Clipper type low
pressure system moving through New
England and a strong high pressure
system approaching from the upper
Mississippi Valley.
DEZ001-002
0 0 0.00K 0.00K
The persistent and strong west to
northwest offshore flow caused blowout
tides to occur in upper Delaware Bay as
well as along tidal sections of the
Delaware River during the evening low
tide on the 31st. The low tide at Reedy
Point (New Castle County) was 2.4 feet
below mean lower low water. Blowout
tides start at 1.8 feet below mean lower
low water.
FLORIDA, Northeastern
Marion County
1 E Citra
0 0 0.00K
Power lines reported down in the City of
Ocala approximately 0925 EST with a
couple of trees reported down near the
City of Citra around 09S0 EDT.
Note: The estimated wind gust of 50
knots is equivalent to 58 mph.
Alachua County
2 WSW Alachua 0 0 0.00K
Wind lifted partially off of a large
distribution center building on Peggy
Road.
Note: The estimated wind gust of 50
knots is equivalent to 58 mph.
Duval County
1 NNE Mandarin
0 0 0 0.00K
Two small waterspouts were observed on
the St Johns River by a motorist near
the Buckman Bridge and lasted for half a
minute or less.
Baker County
2 WNW Knabb 0 0 0.00K
A squall line moved across north Florida
and into the Magaretta area. As the
system moved into the area of Mack Ruise
Road and Ruise Lane a microburst
impacted the area with an estimated 60
to 75 mph sustained winds. One mobile
home had a hole punched through its
roof. A second structure, built largely
of particle board with no reinforcing
bracing, was unroofed with portions of
the roof thrown approximately 100 yards
to the north. The damage made this
structure uninhabitable and it was the
most severely impacted structure. A
third structure had its sheet metal roof
removed from the southern portion of the
structure and thrown to the north. Two
trees were snapped at the base and laid
flat to the north. A witness described
seeing a vortex and a second witness
described being lifted off the ground by
that vortex. These reports are
consistent with a possible gustnado and
it is believed that this is what
contacted the most severely affected
structure.
Note: The estimated wind speed of 65
knots is equivalent to 75 mph.
Duval County
1 N Lake Forest
0 0 0.00K
Damage occurred to ship containers at
Talleyrand Avenue at approximately 1030
a.m. EST. Other minor damage was
reported near Bayard at 10:40 a.m. EST.
A squall line moved east across north
Florida over night on Wednesday 12/10
and during the day on Thursday 12/11.
Note: The estimated wind gust of 50
knots is equivalent to 58 mph.
FLORIDA, Northwest
FLZ012-014
0 0 0.00K 0.00K
Strong westerly winds ahead of a
vigorous storm system, which moved
northeast from the northern Gulf of
Mexico into Alabama and Georgia,
generated high surf, coastal flooding
and beach erosion along the Bay and Gulf
county coastline on the 10-11th.
FLZ013
0 0 5.0K 0.00K
Strong winds associated with a line of
heavy showers downed trees and power
lines in Blountstown.
Wakulla County
5 SW Crawfordville 0 0 100K 0.00K
Several trees and a TV antenna from a
mobile home on Lawhon Road were blown
down.
Note: The estimated wind gust of 50
knots is equivalent to 58 mph.
Jefferson County
Monticello 0 0 10.00K 0.00K
A portion of the court house tin roof
was removed.
Note: The estimated wind gust of 50
knots is equivalent to 58 mph.
Madison County
7 W Madison
4 N Lee 0 0 0.00K 0.00K
Several trees were down across the
central portion of the county.
Note: The estimated wind gust of 50
knots is equivalent to 58 mph.
Taylor County
1 W Boyd 0 0 0.00K 0.00K
Several trees were down on Williamson
Lane off Boyd Road.
A line of severe thunderstorms downed
numerous trees and caused structural
damage in portions of the Big Bend.
Note: The estimated wind gust of 50
knots is equivalent to 58 mph.
FLORIDA, West Central
Manatee County
1 SW Anna
Maria Sound 0 0 5.00K 0.00K
Minor damage occurred to sheds, lanais,
and aluminum roofs on carports in a
mobile home park.
Note: The estimated wind gust of 43
knots is equivalent to 49 mph.
Sarasota County
Laurel 0 0 5.00K 0.00K
Eight mobile homes received minor damage
to lanais and carports.
A cold front moved through the area in
the early morning hours with a weak
squall line traveling just ahead of the
front. The line produced two areas of
minor straight line wind damage with
wind gusts of 40 to 50 mph. Note: The
estimated wind gust of 43 knots is
equivalent to 49 mph.
FLZ039-042-048
0 0 0.00K 0.00K
A cold front moved through the area late
in the evening on 12/1 and through the
early morning hours on 12/2. Cold air
settled into the Nature Coast through
the day on 12/2 and allowed for several
hours of sub-freezing temperatures on
the morning of 12/3.
Levy County experienced several hours of
sub-freezing temperatures with lows from
27 to 31 degrees across the county. The
lowest temperature of 27 degrees
occurred at the cooperative station six
miles southeast of Chiefland. Citrus
County experienced over 9 hours of
sub-freezing temperatures in some
locations, with the lowest temperature
of 25 degrees occurring at a mesonet
station near Inverness.
Hernando County also had over 9 hours of
sub-freezing temperatures with the
lowest temperature of 24 degrees
occurring at the FAWN station in
Brooksville.
Sumter County had lows ranging from 28
to 32 degrees, with the lowest
temperature of 28 degrees occurring at
the cooperative station in Bushnell.
Pinellas County
2 ESE Belmont 0 0 5.00K 0.00K
A sheet metal roof was tom off of a
porch of a local residence.
A gulf low pressure system lifted
through the deep south and pushed a cold
front through the area. A strong and
fast moving squall line developed ahead
of the cold front, bringing winds of 40
to 50 mph as it moved through the area.
Note: The estimated wind gust of 43
knots is equivalent to 49 mph.
FLORIDA, West Panhandle
Santa Rosa County
Allentown
0 0 33.00K 0.00K
Thunderstorms produced gusty winds that
damaged metal buildings in Allentown,
Severe thunderstorms moved across
northwest Florida producing strong winds
that damaged metal storage buildings in
Allentown. Note: The estimated wind gust
of 58 knots is equivalent to 67 mph.
Escambia County
Cantonment
0 0 5.00K 0.00K
Slow moving thunderstorms produced 6 to
8 inches of rain around Cantonment. The
heavy rain caused several roads to be
temporarily closed and one house
suffered some minor water damage.
Location Character of Storm
CALIFORNIA, Extreme Southeast
CAZ032
Winter Storm
A strong low pressure system moved
slowly through Southern California,
producing very heavy snow. About a foot
of snow fell in the higher elevations of
Joshua Tree NP. Snow was also reported
in many lower desert areas. Some roads
were either closed or traffic was
restricted.
CAZ033
Dense Fog
Plentiful moisture combined with light
winds to produce dense fog.
CALIFORNIA, North Central
CAZ015
Cold/Wind Chill
Heat
High pressure over the area brought
light winds and clear skies. This
allowed the unusual case of a record
minimum and a record maximum both being
tied on the same day in the northern
Sacramento Valley.
CAZ068-069
Winter Storm
A cold low pressure system dropped
southward into northern California
bringing 2 to 3 feet of snow
accumulation to a number of mountain
locations. Snowfall amounts of 4 to
nearly 5 feet were recorded at some of
the higher elevation ski resorts in the
northern Sierra Nevada Mountains. The
very cold airmass allowed for relatively
low snow levels. Snow amounts of more
than a foot fell at elevations as low as
3000 feet while amounts of 3 to 4 inches
fell in the foothills. Gusty winds
combined with the snow to cause poor
visibility at times. Numerous car
accidents were reported in slippery
conditions and downed trees caused power
outages to 11,000 customers in the
northern Sierra Nevada Mountain
communities.
CAZ015
Cold/Wind Chill
A cool high pressure system in the wake
of a storm coupled with light winds and
clear skies to bring unseasonably cold
morning temperatures to the northern
Sacramento Valley.
CAZ013-063>064-
068-069
Winter Storm
A winter storm which came in two waves
dropped heavy snow over the mountains of
interior northern California on the 24th
and 25th. The northern Sierra Nevada
Mountains received 1 to 3 feet of snow
above 6000 feet, with amounts of more
than 5 feet reported at Lassen National
Park. Wind gusts exceeding 60 mph were
recorded over higher mountain peaks. The
strong wind coupled with falling snow
brought limited visibilities over the
higher mountains. Holiday travel was
significantly curtailed with many roads
closed for a period of time, including
Interstate 80.
CALIFORNIA, Northeast
CAZ073
High Wind
A winter storm brought strong winds to
the eastern Sierra and western Nevada.
CAZ070>073
Heavy Snow
A powerful winter storm brought heavy
snowfall to the eastern Sierra and
western Nevada.
CAZ073
Avalanche
One day after a powerful snowstorm
deposited up to 4 feet of snowfall in
the central Sierra Nevada an avalanche
occurred at Mammoth Mountain Ski Resort.
CAZ070>072
Winter Weather
CAZ072-073
Strong Wind
A low pressure system moved through the
northern Sierra and western Nevada and
brought snow and high winds to the
region.
Winter Weather
CAZ073
Winter Weather
CAZ072-073
Strong Wind
A low pressure system brought snowfall
and strong winds to the eastern Sierra.
CAZ070>073
Heavy Snow
CAZ072
Avalanche
A winter storm brought over two feet of
snow to parts of the Sierra Nevada and a
rare white Christmas to much of western
Nevada. M21OU
CALIFORNIA, South Central
CAZ089>092
Dense Fog
Dense Fog
CAZ090>092
Dense Fog
December began with the central
California interior under an upper-level
high-pressure ridge. This ridge brought
a stable airmass to the region, and
strengthened the inversion over the San
Joaquin Valley. As a result, areas of
low clouds and overnight and morning
dense fog were a daily occurrence during
the first few days of the month.
Visibilities near zero occurred in many
parts of the San Joaquin Valley. Drizzle
occurred during the morning of December
2nd, and enough moisture condensed out
of the lowest levels of the airmass for
a respite from widespread dense fog on
the 3rd and 4th, although patchy dense
fog did occur. Rather than widespread
dense fog, a layer of low altitude
stratus formed and persisted over the
San Joaquin Valley. More widespread
dense fog returned to the central and
southern San Joaquin Valley on the 5th
and 6th.
CAZ089>092
Dense Fog
Behind a departing low, an upper-level
ridge over the eastern Pacific built
into California, bringing more stratus
and patchy dense fog during the morning
of December 8th. A weak upper-level
disturbance moved over the central
California interior, bringing light rain
to the central and southern San Joaquin
Valley; a few hundredths of an inch fell
at Fresno. High pressure rebuilt over
the central California interior,
bringing more dense fog to the central
and southern San Joaquin Valley. The
worst dense fog conditions were
prevalent during much of the overnight
and morning hours on December 9, 10, 11,
and 12, when visibilities were lowered
to near zero in some areas due to very
dense fog.
CAZ095-098-099
Strong Wind
CAZ089-090
Frost/Freeze
CAZ095>097
Winter Storm
The weather pattern changed on December
12th, as a series of upper-level troughs
began moving through the central
California interior. These troughs
brought several days of precipitation to
the region, as well as a push of
unseasonably cold air. The first storm
brought up to an inch of rain to the
central and southern San Joaquin Valley,
and heavy snow to the Southern Sierra
Nevada and Tehachapi Mountains. Wofford
Heights, near the southern end of the
Sierra Nevada received a foot of new
snow on December 15th, as did Camp
Nelson, further north in Tulare County.
1648 PST: Ponderosa Basin 18 inches of
snow so far. Locations in the higher
terrain saw very high snowfall totals
with this storm. Between 2 to 4 feet of
snow fell at locations such as Tenaya
Lake, Poison Ridge, Lower Kibbie Ridge,
Pascoes, Wet Meadows, and Casa Vieja
Meadows. Despite the low snow levels,
little snow fell in the Sierra Nevada
foothills. This storm also brought
strong winds to the Kern Mountains and
the Deserts with peak wind gusts
reported between 50 to 55 mph.
Winter Storm
CAZ099
Winter Storm
CAZ089>091
Frost/Freeze
Another major winter storm reached the
central California Interior during the
afternoon of December 16th. This storm
dropped south along the coast, and as a
result had a stronger impact on the Kern
County mountains and desert than on the
Sierra Nevada north of Kings Canyon. In
the Kern desert, California City had 6
inches of new snow, and Rosamond
received 2 inches. In the Kern County
mountains, a foot of snow fell at Alpine
Mountain. Rain that developed over San
Luis Obispo and Monterey Counties during
the afternoon of the 16th moved into the
west side of the San Joaquin Valley, and
actually produced light snowfall at
Harris Ranch.
As the storm crossed southern California
and into Arizona, skies cleared over the
central California interior. In the
central and southern San Joaquin Valley,
temperatures fell into the mid 20s
during the morning of December 18th. The
lowest temperatures were recorded in
Merced and western Fresno Counties,
where durations below 28 degrees were as
much as 5 hours.
CAZ098-099
Strong Wind
CAZ096-097
Winter Storm
CAZ095>097
Winter Storm
CAZ089>092-098>
099
Strong Wind
Another winter storm arrived in Central
California on the 21st, bringing another
round of rain and mountain snow to the
region. SNOTEL observations in the
Southern Sierra Nevada indicated that
between one and two feet of snow fell
over the higher elevations on the 21st
and 22nd. Another storm reached
California on Christmas Eve, but there
was little (if any) break between the
instability showers behind the exiting
storm and the arrival of the new system.
Snow levels fell below 3000 feet with
this storm, with snow falling at
Kernville. Gusty winds moved through the
region on Christmas Day, with gusts to
around 40 mph hitting Hanford around
midday. Winds across the valley caused
isolated reports of downed powerlines
and small trees with peak wind gusts
near 50 mph with the cold front.
After this system passed, widespread
dense fog did not return for several
days. This lack of sky cover, combined
with light winds, allowed for good
radiational cooling. This resulted in
three days of freezing temperatures in
the central and southern San Joaquin
Valley, although widespread critical
temperatures were not reported.
Strong winds also occurred with this
storm across the Kern deserts with gusts
to near 50 mph common, especially near
and below canyons and passes.
Frost/Freeze
CAZ089>092
Frost/Freeze
CAZ089>092
Frost/Freeze
After the last major winter storm of
December finally passed to the east of
central California, widespread dense fog
did not return for several days. This
lack of sky cover, combined with light
winds, allowed for good radiational
cooling. This resulted in three days of
sub-freezing temperatures in the central
and southern San Joaquin Valley,
although widespread critical
temperatures were not reported.
High pressure returned to the region by
the 30th, and widespread fog returned
with patchy dense fog over the central
and southern San Joaquin Valley just
after sunset during that evening. The
fog remained through the afternoon hours
of the 31st. The dense fog caused
visibilities to fall to between one-half
to one-quarter miles at times across
many sections of the San Joaquin Valley.
Cloud ceilings began to rise, and
visibility began to improve over the
central and south valley on New Year's
Eve, just before the start of the New
Year.
CALIFORNIA, Southeast
CAZ519-520
High Wind
CAZ523
Strong Wind
High winds buffeted the Mojave Desert
and southern Great Basin ahead of a
strong cold front.
CAZ519-524-525
Heavy Snow
A Pacific storm pushed moisture over
cold air in the Mojave Desert and
southern Great Basin, producing
significant snow as low as 3000 feet.
CAZ523>525
Heavy Snow
Just two days after one storm system
produced heavy snow in the higher
elevations of the Mojave Desert and
southern Great Basin, a second storm
came through on a track slightly south
of the first one. This storm produced
heavy snow down to the desert floor over
much of the Mojave Desert. Snow was seen
as low as 1500 feet.
CAZ519
Heavy Snow
CAZ525
High Wind
A strong Pacific storm and associated
cold front traversed the Mojave Desert
and southern Great Basin, bringing heavy
snow to the higher elevations and high
winds to the lower elevations.
CALIFORNIA, Southwest
CAZ042
Dense Fog
Dense fog resulted in flight delays and
auto accidents during a busy holiday
weekend.
CAZ048-056>058
High Wind
A 1032 mb high over the Great Basin,
combined with strong upper-level North
to Northeasterly winds, led to strong
gusty offshore winds over Southern
California which knocked down trees and
telephone poles.
CAZ060
High Wind
CAZ055
Winter Storm
CAZ056-060
Heavy Snow
Orange County
Disneyland
Heavy Rain
Shortly after 0900 PST, the roof of a
classroom partially collapsed due to
heavy rain. Fourteen people, ages 17 to
50, were taken to the hospital with
minor injuries.
Orange County
1 NW Modjeska
Flash Flood
Heavy rain in the Santiago Bum Area
caused mud and debris flows in Modjeska
Canyon. Many of the roads and yards that
were buried in mud by this debris flow
were impacted by similar debris flows
last winter. The amount of mud and rock
left in the wake of the debris flow was
extensive but damage to roads and
property was minor.
CAZ060
High Wind
CAZ055-058-060
Winter Storm
CAZ048-057
High Wind
San Diego County
1 WNW San Ysidro
(NRS)Naf Imperial Be Flash Flood
Significant flooding in the Tijuana
River Valley resulted in the deaths of a
Tijuana man and numerous ranch and farm
animals. At least 21 people had to be
rescued, including 6 by helicopter.
Three men were taken to a hospital and
treated for hypothermia. An estimated 70
horses were also rescued. Three horses
drowned before they could be rescued and
another horse was later euthanized due
to a leg injury. Fifteen goats and an
unknown number of dogs also died in the
flood. One farmer lost $600,000 dollars
worth of his crop while another lost
$10,000 dollars worth of watermelons.
The one human death occurred outside the
forecast area in Tijuana, Mexico. The
flash flood occurred when both the
Tijuana River and a nearby flood control
channel became dammed with sediment,
trash, and other debris.
A pair of winter storms associated with
a vigorous, cold upper-low brought
periods of high winds, heavy rain, and
snow to the region from late on the 13th
through the 17th. The first storm
brought rain to the power elevations and
gusty winds and very heavy snow to the
mountains and deserts. Blizzard
conditions forced the closure of
mountain highways while heavy rain
caused a debris flow in the Santiago
Burn Area. Snowfall accumulations from
this first storm measured 31 inches at
Big Bear Lake, 30 inches at Running
Springs, and 24 inches at Forest Falls.
The second storm on the 17th was notable
for its significant rains in the low
deserts and heavy snowfall in the
mountains and high deserts. Heavy rain
caused significant flooding in the
Tijauna River valley. Surface offshore
pressure gradients and mid-level
easterly flow brought dry air into the
region, resulting in widespread
evaporative cooling and snow levels down
to the desert floor. The winter storm
dumped 20 inches of snow in Pinon Hills,
18 inches of snow in Hesperia, Lucerne
Valley, Palomar Mountain, and Julian, 16
inches of snow in Idyllwild, 14 inches
in Victorville, and even 4 inches in
Shelter Valley. Local snowfall amounts
in excess of 2 feet occurred in the San
Bernardino Mountains. Total snowfall
accumulations at Big Bear Lake for the 5
day period ending on the 17th was an
impressive 54 inches.
CAZ056-060-061
High Wind
A weakening upper-level low, along with
a strong Polar Jet over California,
brought periods of light to moderate
rain, mountain snow, and strong winds
over the Christmas holiday. Rainfall
amounts ranged from one-quarter to
one-half inch at the lower elevations,
and one to two and one-half inches in
the coastal slopes. No significant
snowfall was reported. High winds downed
trees and power lines in Encinitas, Palm
Desert, and Palm Springs.
CALIFORNIA, Upper
CAZ085
Heavy Snow
Post-frontal showers behind the first
major winter storm of the season brought
locally significant snow to Southwest
Oregon and Northern California. Winter
Weather Advisories were in effect over
most of the area. Heavy Snow reports
were isolated, so this was for the most
part an Advisory event.
CAZ082
Heavy Snow
The second major winter storm of the
year moved into Southern Oregon and
Northern California at this time ... hot
on the heels of the first one. The main
impact of the storm was the low snow
levels which created widespread travel
difficulties ... but heavy snow was
reported in the mountains as well. A
Winter Storm Warning for Heavy Snow was
issued for California zone CAZ080 at
17/0334 PST, effective from
18/0400-19/0000 PST. It was shortened to
18/2200 PST at 18/1032 PST,
then expired at 18/2200 PST. A Winter
Storm Warning for Heavy Snow was issued
for California zones CAZ081/082/083/084
at 17/0334 PST, effective from
18/1000-19/0000 PST. It was shortened to
18/2200 PST at 18/1032 PST,
then cancelled at 18/1307 PST. A Winter
Storm Warning for Heavy Snow was issued
for California zone CAZ085 at 18/0336
PST, effective from 18/1000-19/0000
PST. It was shortened to 18/2200 PST at
18/1032 PST, then cancelled
at 18/1307.
Heavy Snow
Another winter storm hit Southern Oregon
and Northern California during this
interval, A Winter Storm Warning for
Heavy Snow was issued for California
zone CAZ080 above 2000 feet at 23/1155
PST, effective from 23/2200 until
23/1600 PST. The effective time was
extended to 25/1600 PST at 24/0517 PST,
and changed to 24/1600 through 25/1600
PST at 24/1023 PST. The warning was
cancelled at 24/1259 PST. A Winter Storm
Warning for Heavy Snow was issued for
California zone CAZ082 at 24/2134 PST,
effective from 24/2134 until 25/1900
PST. The warning was cancelled at
25/0933 PST.
CALIFORNIA, West South Central
CAZ053-054
High Wind
Strong northerly winds developed across
the mountains of Ventura and Los Angeles
counties. Winds gusting as high as 76
MPH were reported.
Santa Barbara County
3 NNW El Encanto
Flash Flood
Bands of showers produced intense
rainfall rates in and around the Gap
Fire bum area. The West Camino Cielo
sensor reported 1.47 inches of rainfall
in one hour. With such intense rainfall
rates, mud and debris flows were
reported. Fortunately, areas affected by
the mud and debris flows were protected
by a fence. Behind the fence, up to 6
feet of mud and debris was reported.
Santa Barbara County
3 NE Santa Barbara
Flash Flood
Bands of showers produced intense
rainfall rates across the Tea Fire bum
area. Rainfall rates in excess of 0.50
inches per hours were reported. The
intense showers produced mud and debris
flows which forced the closure of East
Mountain Drive south of the burn scar.
CAZ053-054
Winter Storm
A significant early-season winter storm
brought significant precipitation and
wind to Central and Southern California.
Rainfall totals across the forecast area
ranged between 1 and 3 inches. Along
with the rainfall totals, the rainfall
rates were high enough to produce mud
and debris flows near some bum areas. In
the mountains, significant winter storm
conditions were reported. Snowfall
totals between 10 and 16 inches were
reported. In addition, winds gusting to
around 55 mph produce areas of reduced
visibilities in snow and blowing snow.
CAZ054-059
Winter Storm
A extremely cold early-season storm
heavy snow and strong winds to the
mountains and deserts of Los Angeles
county. Cold air associated with the
storm dropped snow levels down to around
1500 feet. With such low snow levels,
significant snowfall accumulations were
reported across the Antelope Valley
where elevations are around 2500 feet.
In addition to the snowfall, very strong
northeast winds gusting to between 35
and 55 MPH were reported.
CAZ053-054
Winter Storm
Another early-season storm brought
winter storm conditions to the mountains
of Ventura and Los Angeles counties.
Snowfall totals up to 12 inches were
reported along with winds gusting to 55
MPH.
CALIFORNIA, Western
Santa Cruz County
3 ENE Mesa Vlg
Heavy Rain
A wet mountain road caused a man to veer
off highway 152 near Watsonville
resulting in his death.
CAZ508
Strong Wind
CAZ507
Frost/Freeze
Sonoma County
2 SW Sonoma
1 SW Schellville Heavy Rain
Heavy rain caused a fatality of a 32
year-old man when his vehicle collided
with another vehicle. Highways 116 and
121 were closed for about three hours
after the collision.
CAZ508
Frost/Freeze
A cold core low pressure system produced
winter storm conditions causing low
elevation snow, minor flooding and
isolated strong wind through the period
40162 through 17, 2009. Snow amounts
ranged from a few inches in the hills
around the San Francisco Bay Area to as
high as nine inches at Mount Hamilton.
CAZ508-513
Strong Wind
A strong fast moving low pressure system
brought strong southerly winds and
mountain snow to the San Francisco Bay
area. This holiday wind event toppled
trees and left many with out power in
San Mateo and Santa Clara counties.
COLORADO, Central and Northeast
COZ035-038>039-
041-043
Winter Weather
A storm system brought moderate to heavy
snowfall to areas in and near the Front
Range Foothills, Urban Corridor and
Palmer Divide. Storm totals included: 10
inches, 4 miles south of Boulder; 8.5
inches, 3 miles southwest of Golden; 8
inches, 12 miles southeast of Aurora; 7
inches at Boulder, 1 mile east of
Buckhorn Mountain, Fort Collins and
Genessee. A localized band of heavy snow
also produced nearly 7 inches of snow in
and around Greeley.
COZ034
Avalanche
An avalanche partially buried a skier on
Berthoud Pass. The skier suffered minor
injuries.
Avalanche
A second avalanche struck a skier on
Berthoud Pass. The person was caught and
carried for some distance, but was not
injured.
COZ036-039-041
Heavy Snow
COZ040
Winter Weather
A Pacific storm system, coupled with
upslope winds; produced heavy snow in
and near the foothills of Boulder,
Jefferson and Douglas Counties, and
along the Palmer Divide. In the Front
Range Foothills, storm totals included:
15 inches, 3 miles southwest of
Roxborough State Park and Strontia
Springs Dam; 14 inches at Ken Caryl; 13
inches, 3 miles southwest of Conifer,
Genesee, 3 miles southeast of Indian
Hills, 6 miles west of Littleton and
Lookout Mountain; 11 inches, 3 miles
southwest of Morrison; 10 inches, 7
miles southwest of Boulder and 6 miles
southwest of Evergreen. In Boulder and
in locations west and south of Denver,
storm totals included: 13 inches near
Kassler, 10 inches, 2 miles southwest of
Larkspur; 8.5 inches, 8 miles south of
Franktown, Louisville and 7 miles south
of Sedalia; 8 inches in Boulder and 1
mile east of Castle Rock, 7 inches at
Lafayette and 3 miles south of
Littleton, 6.5 inches in Arvada and 3
miles east of Highlands Ranch, with 6
inches at Lakewood and Wheat Ridge.
COZ034
Winter Storm
A storm system brought heavy snow to
portions of the North Central Mountains.
The heaviest snowfall was reported in
Summit County. Storm totals included: 13
inches at the Eisenhower Tunnel, 11.5
inches, 7.5 miles northwest of
Silverthome, with 8 inches at Frisco.
COZ035
High Wind
Strong winds in Estes Park caused a roof
under construction at the YMCA of the
Rockies to collapse. The wind caught the
end section of the roof truss, and in a
domino effect, blew it into the second
and thirds trusses, on down the line of
the roof.
COZ033
Avalanche
Two snowmobilers were killed on the side
of Gravel Mountain near Grand Lake. The
avalanche occurred when one of the men
tried to assist the other, after his
snowmobile had become stuck in the snow.
Both men were buried by the slide and
died at the scene of the accident.
Another snowmobiler was partially buried
in the avalanche, but was not injured.
M19OU, M38OU
COZ035-038-039
High Wind
Very strong Chinook winds blasted areas
in and near the Front Range Foothills of
Larimer, Boulder and Jefferson Counties.
The wind blew down trees and power
poles, downed electrical lines and
fences, and damaged homes and vehicles.
Scattered power outages were reported
all along the Front Range. In
Metropolitan Denver alone, 24,000 Xcel
customers were affected by the outages.
Strong crosswinds also blew over some
semi-trailers along Interstate 25, near
the Wyoming state line. In Larimer
County, two small wildfires were sparked
by downed power lines in Rist Canyon and
near the Laporte/Bellvue areas. Four
planes were damaged at the Vance Brand
Municipal Airport in Longmont; one was
wrecked. Insurance companies estimated
up to $7 million in damage along the
Front Range and adjacent plains, making
it the 4th costliest windstorm to hit
Colorado.
Peak wind gusts included: 1 11 mph, 3
miles north of Masonville; 98 mph at
Carter Lake; 87 mph at the National Wind
Technology Center; 86 mph, 2 miles north
of Longmont and at Pinewood Lake; 81
mph, 3 miles east of Gold Hill; 78 mph,
2 miles west-southwest of Broomfield; 77
mph at Erie; 76 mph, 21 miles north of
New Raymer and 75 mph at Lafayette.
High Wind
COZ039
High Wind
Another brief period of high winds
occurred in and near the foothills of
Boulder and Jefferson Counties. In
Nederland, the strong wind snapped a
blue spruce which landed on a nearby
propane tank. Some roofs in the
immediate area were damaged. Power lines
were also downed; which left 126
residence without electricity for about
6 hours. Peak wind gusts included 90 mph
at the National Wind Technology Center,
and 89 mph, 6 miles northwest of
Boulder.
COLORADO, South Central and Southeast
COZ072>075-078>
080-087>088
Winter Storm
A strong upper level disturbance
produced significant amounts of snow
across the southeastern mountains and
the southern I-25 Corridor. Seven to 10
inches of snow fell around Walsenburg
(Huerfano County) and locally in the
Monument area (northern El Paso County)
... 12 to 15 inches in and near Colorado
City ... Aguilar ... Trinidad and Beulah
(Las Animas County and Pueblo County)
... 18 to 19 inches in Rye and La Veta
(Pueblo County and Huerfano County) ...
25 inches on the north slopes of the
Spanish Peaks (Huerfano County) ... and
an impressive 34 inches in and near
Cuchara (Huerfano County).
COZ058-060-066-
068
Winter Storm
A storm system produced generous amounts
of snow ... mainly in the mountains of
southern Colorado. Some snow amounts
include up to 6 inches in Pueblo West
(Pueblo County) ... 13 inches on Monarch
Pass (Chaffee County) ... and an
impressive 32 inches near the summit of
Wolf Creek Pass (Mineral County).
Winter Storm
COZ067-068
Winter Storm
Strong upslope flow ... accompanied with
abundant moisture ... impacted mainly
the eastern San Juan and La Garita
Mountains in and near ... and portions
of the Sangre de Cristo Mountains. Some
of the higher snow amounts were ... 6
inches Cuchara (Huerfano County) ... 7
inches 7 miles west of Westcliffe
(Custer County) ... 8 inches on Monarch
Pass (Chaffee County) ... and 13 inches
near the summit of Wolf Creek Pass
(Mineral County).
COZ060-066-068
Winter Storm
Strong upslope flow ... with abundant
moisture impacted the eastern San Juan
and La Garita Mountains ... and the
eastern Sawatch Range. The higher
accumulations ranged from 10 to 14
inches on Monarch Pass and points north
... and 33 inches near the summit of
Wolf Creek Pass (Mineral County).
Winter Storm
COZ060-066-067
Winter Storm
COZ060-066-068
Blizzard
Another in a series of winter storms
produced blizzard conditions and copious
amounts of snow to the eastern San Juan
and La Garita Mountains ... the Upper
Rio Grande Valley ... and the eastern
Sawatch Range. Some of the higher snow
totals were ... 17 inches on Monarch
Pass (Chaffee County) and 29 inches near
the summit of Wolf Creek Pass (Mineral
County). This heavy snow was accompanied
by winds gusting to 70 mph at times.
COZ073-075-080-
082
High Wind
High winds aloft produced high winds
over the higher elevations of the Wet
Mountains ... the Sangre De Cristo
Mountains ... and Pikes Peak. Strong
winds occurred in the lower elevations
of the eastern mountains and across much
of the 1-25 Corridor.
COZ081-084
High Wind
Strong to high winds occurred over
northern parts of El Paso County and
Teller County. Winds gusted up to 80 mph
knocking around 20 trees down. A
semi-trailer was overturned near mile
marker 148 on 1-25 in northern Colorado
Springs. Four power failures affected
nearly 1000 customers on the north side
of Colorado Springs.
COLORADO, West
COZ018
Winter Weather
A moist northwest flow produced
significant snowfall and strong winds
across the area.
COZ004-010-013
Winter Weather
An upper level disturbance combined with
orographic lift in northwest flow
produced significant snowfall across the
northern mountains of western Colorado.
COZ019
Winter Weather
COZ018
Winter Storm
COZ004-009-012>
014-017
Winter Weather
A low pressure system brought
significant snowfall to the mountains of
western Colorado.
Winter Storm
COZ010-012-018>
019
Winter Storm
COZ009
Winter Storm
COZ001
Winter Weather
COZ002
Winter Storm
COZ005
Winter Weather
COZ008-014
Winter Storm
COZ006-007
Winter Weather
COZ017
Winter Storm
COZ011-021
Winter Weather
COZ022-023
Winter Weather
A strong Pacific low pressure system and
cold front swept across western Colorado
and produced significant snowfall and
strong winds.
COZ010-018
Avalanche
A storm system dropped heavy snow onto
weak snow layers in the mountains which
resulted in numerous avalanches.
COZ003-009>010-
012>013-017>019-
021-023
Winter Storm
COZ008-011
Winter Weather
COZ014
Winter Storm
COZ020
Winter Weather
COZ002
Winter Weather
A Pacific storm system brought abundant
moisture and cold air to western
Colorado resulting in widespread heavy
snow and strong winds across the
mountains and much of the lower valleys.
Numerous travel restrictions were
enacted on many mountain roads and
highways.
COZ012
Avalanche
A snowboarder was killed by an
avalanche. M36OU
COZ007-008
Winter Weather
COZ001
Winter Weather
A Pacific storm system brought abundant
moisture and cold air to western
Colorado resulting in widespread heavy
snow and strong winds across the
mountains and much of the lower valleys.
Numerous travel restrictions were
enacted on many mountain roads and
highways.
COZ004-009-012>
013
Winter Weather
A low pressure system moved across
western Colorado and produced
significant snowfall across the
northern and central mountains.
Winter Storm
COZ017
Winter Storm
COZ012-018-019
Winter Storm
COZ001
Winter Weather
COZ003-008-013
Winter Storm
COZ002-005-014
Winter Weather
COZ007-022-023
Winter Storm
COZ021
Winter Weather
COZ006-010
Winter Storm
COZ011-020
Winter Weather
A strong low pressure system preceded by
a deep and moist southwest flow brought
a prolonged period of winter weather and
widespread heavy snow to western
Colorado.
COZ003-009-012>
014-017>019-021>
023
Winter Stone
COZ004-008-011-
020
Winter Storm
COZ006-007
Winter Weather
COZ009-018-019
Blizzard
A series of strong Pacific disturbances
brought a prolonged period of heavy snow
and strong winds to western Colorado
over the Christmas holiday. This storm
impacted all of western Colorado,
resulting in widespread travel
difficulties and many temporary road
closures. Blizzard conditions occurred
across much of the central and southern
mountain areas.
Mesa County
7 NW Mack
Thunderstorm Wind (55MG)
A fast moving thunderstorm produced a
severe wind gust. Note: The measured
wind gust of 55 knots is equivalent to
63 mph.
COZ012
Blizzard
COZ002
Winter Storm
COZ001-005
Winter Weather
A series of strong Pacific disturbances
brought a prolonged period of heavy snow
and strong winds to western Colorado
over the Christmas holiday. This storm
impacted all of western Colorado,
resulting in widespread travel
difficulties and many temporary road
closures. Blizzard conditions occurred
across much of the central and southern
mountain areas.
COZ010
Avalanche
A man was injured after being caught in
an avalanche.
CONNECTICUT, Northeast
Hartford County
Burlington
Flood
Rock Road in Burlington was closed due
to flooding.
Hartford County
1 SE Wapping
Highland Park Flood
The Hockanum River in Manchester
overflowed its banks at New State Road
with the water level over picnic table
seats near Adams Street.
While a major ice storm affected
Massachusetts and Southern New
Hampshire, three to four inches of rain
fell in Connecticut resulting in small
stream and some street flooding.
CTZ002>004
Heavy Snow
An intensifying coastal low spread heavy
snow across southern New England. Snow
began in the early afternoon across
Connecticut and southwestern
Massachusetts, spreading quickly across
Massachusetts, Rhode Island, and
southern New Hampshire. Eight to twelve
inches of snow fell across much of
southern New England.
Heavy Snow
CTZ004
Heavy Snow
A fast moving low pressure system moved
through Southern New England bringing
39913 inches of snow to the region. In
addition, strong cold advection and
pressure rises resulted in very cold
temperatures, strong winds, and bitterly
cold wind chills.
CONNECTICUT, Northwest
CTZ001-013
Strong Wind
The combination of a low pressure system
tracking east across northern New York
State, and a second low pressure rapidly
developing across the Canadian Maritimes
created a tight pressure gradient across
much of eastern New York and western New
England during Sunday afternoon and
evening, December 7th. This tight
pressure gradient led to strong west to
northwest winds, with sustained speeds
of 15 to 30 mph, and gusts of up to 55
mph. These strong winds led to some
downed tree limbs, and subsequent
scattered power outages across the
region Sunday afternoon and evening.
Ice Storm
CTZ013
Winter Weather
A cold front moved across eastern New
York and western New England on
Wednesday, December 10th, ushering a
cold airmass into the region. A low
pressure system developed over the
southeast states Wednesday and Wednesday
night. This storm then headed northeast
Thursday and Thursday night, December
11th, with precipitation spreading
northward well in advance of the low.
The low continued to track northeast,
passing over the mid Atlantic region
late Thursday night, and over the New
York City Metropolitan area and southern
New England Friday morning, December
12th. The low then moved to the Canadian
Maritimes Friday night.
As the storm approached, warmer air
moved in aloft, and with a cold airmass
remaining in place at the surface, this
set the stage for a significant mixed
precipitation event. The precipitation
came down heavy at times, especially
Thursday night. Hourly precipitation
rates of one quarter to one third of an
inch were reported for several hours in
the form of freezing rain across much of
the region. By the time the
precipitation tapered off Friday
morning, ice accretion from freezing
rain ranged from one half to three
quarters of an inch, with the greatest
amounts occurring across higher
elevations of northern Litchfield
County. The ice storm resulted in
numerous downed trees and resultant
power outages across northwest
Connecticut, where an estimated 5,000
utility customers lost power. Many
schools and businesses were closed
Friday due to the loss of power.
Litchfield County
Kent
1 WNW Birch Hill Flood
Heavy rain caused several streams to
flood near Kent, resulting in road
closures. In addition, moderate flooding
along the Housatonic River in New
Milford forced a supermarket to remove
food to prevent flood damage.
A cold front moved across eastern New
York and western New England on
Wednesday, December 10th, ushering a
cold airmass into the region. A low
pressure system developed over the
southeast states Wednesday and Wednesday
night. This storm then headed northeast
Thursday and Thursday night, December
11th, with precipitation spreading
northward well in advance of the low.
The low continued to track northeast,
passing over the mid Atlantic region
late Thursday night, and over the New
York City Metropolitan area and southern
New England Friday morning, December
12th. The low then moved to the Canadian
Maritimes Friday night.
As the storm approached, warmer air
moved in aloft, and with a cold airmass
remaining in place at the surface, this
set the stage for a significant mixed
precipitation event. The precipitation
came down heavy at times, especially
Thursday night. Hourly precipitation
rates of one quarter to one third of an
inch were reported for several hours in
the form of freezing rain across much of
the region.
Total liquid amounts of 1 to just under
4 inches fell across Litchfield County.
This heavy rain led to minor flooding,
especially in urban and low lying areas
due to ice blocking storm drains.
In addition, moderate flooding occurred
along several portions of the Housatonic
River. In New Milford, a supermarket had
to have the food removed to prevent
flood damage as the Housatonic River
flooded the store.
CTZ001-013
Winter Weather
A low pressure system tracked northeast
from the Tennessee Valley late Tuesday
night December 16th, to Lake Ontario by
Wednesday afternoon December 17th, while
another low pressure system developed
off the Delmarva Peninsula and tracked
northeast, passing just east of Cape Cod
late Wednesday. This combination of
systems brought a swath of light snow,
sleet and freezing rain across northwest
Connecticut, beginning late Tuesday
evening, and ending around midday
Wednesday. Total snow and sleet amounts
ranged from 1 to 2 inches, with the
greatest amounts across higher
elevations. In addition, ice accretion
of up to one tenth of an inch occurred
across portions of Litchfield County.
This wintry mix led to treacherous
travel conditions for the Wednesday
morning commute.
Heavy Snow
CTZ013
Heavy Snow
A low pressure system tracked from the
southwestern U.S. Thursday morning
December 18th, to southern Illinois by
Friday morning December 19th, to a
position well off the New England coast
by Saturday morning December 20th. This
low spread a swath of moderate to heavy
snowfall across much of east central New
York and western New England, beginning
Friday afternoon, and ending early
Saturday morning. Snowfall totals
generally ranged from 6 to 10 inches
across northwest Connecticut. This heavy
snowfall closed numerous businesses and
schools Friday through Saturday, and
also led to treacherous travel
conditions.
CTZ001
Winter Weather
A low pressure system tracked across the
Great Lakes late Saturday December 20th,
into Sunday December 21st. As this low
moved into the eastern Great Lakes, a
second low pressure developed south of
Long Island Sunday afternoon, and
intensified rapidly, moving northeast
off the northern New England coast by
Monday morning December 22nd.
A swath of light to moderate snow fell
across northwest Connecticut, beginning
Sunday morning, and tapering off by
Sunday evening.
Snowfall accumulations generally ranged
from 3 to 6 inches, with the greatest
amounts occurring across the higher
elevations of northern Litchfield
County.
Strong winds and snow squalls persisted
in the wake of this storm system for
Sunday night and Monday.
Winter Weather
CTZ013
Winter Weather
A low pressure system tracked rapidly
northeast, from the Great Lakes
Wednesday morning on December 24th, to
off the northern New England coast by
Thursday morning on December 25th.
A warm front associated with this low
approached eastern New York and western
New England during Wednesday, spreading
a wintry mix of snow, sleet and freezing
rain during the morning hours, before
changing to plain rain by late Wednesday
afternoon.
This wintry mix created treacherous
travel conditions during the Wednesday
morning commute.
Snow and sleet amounts of an inch or
less fell across Litchfield County. In
addition, ice accretion from freezing
rain of up to one tenth of an inch
occurred.
Strong Wind
A tight pressure gradient between a
strong low pressure system over northern
New England, and an approaching ridge of
high pressure from the west, led to
strong winds across eastern New York and
western New England, from Monday
evening, into midday Tuesday.
Wind gusts of 45 to 55 mph occurred.
This led to scattered power outages,
along with downed trees and tree limbs.
CTZ001-013
Winter Weather
A low pressure system tracked east from
northern Pennsylvania to just south of
Long Island during Wednesday, December
31st, before intensifying rapidly and
moving northeast off the New England
coast by Thursday morning on January
1st. As this low moved east, a swath of
moderate snowfall fell across northwest
Connecticut, with amounts ranging from 4
to 8 inches. The heaviest snow coincided
with the morning commute, creating
treacherous travel conditions, and
forcing many businesses to close, or
have delayed openings. Most schools were
already closed for the Holiday break.
CONNECTICUT, Southern
New Haven County
1 S Allington
Flood
Campbell Avenue was closed in West Haven
due to major flooding. Total rainfall at
New Haven/Tweed Airport was 3.93 inches.
The Quinnipiac River at Wallingford and
the Pomperaug River at Southbury both
rose to minor flooding levels. The
Quinnipiac River at Wallingford crested
at 10.81 ft. (flood stage is 10.0 ft.)
and the Pomperaug River at Southbury
crested at 9.85 ft. (flood stage is 9.0
ft.).
Middlesex County
1 ENE Durham
Flood
Flooding forced the closure of both ends
of Pickett Lane, blocking access to
Coginchaug High School and Kom School
from both Maiden Lane and Main Street in
Durham.
Fairfield County
2 E Bridgeport
Flood
The combination of heavy rain and the
Pequonnock River exceeding bankfull
caused flooding and the closing of Water
Street in Bridgeport. Total rainfall at
Sikorsky Airport in Bridgeport was 3.73
inches.
Middlesex County
Ivoryton
2 SSE Center Brook Flood
Route 9 was closed in Essex Village due
to flooding.
New London County
2 NE Norwich
Gibbs Flood
Major flooding was realized in the towns
of Yantic, Greeneville, Norwichtown, and
parts of East Great Plain from the
Yantic River reaching moderate and then
cresting at major flood stage. Many
businesses experienced flooding and were
forced to close while they pumped water
out of their storefronts. Several roads,
such as West Town Street in Yantic
Flats, were also closed. Total rainfall
amounts ranged from 3.25 inches to 4.5
inches in New London County. The Yantic
River at Yantic exceeded its flood stage
of 9.0 ft. at 6:30 am on Dec 12th. The
river exceeded moderate flood stage of
9.5 ft. at 7:15 am and major flood stage
of 11.5 ft. at 10:30 am before cresting
at 11.82 ft. at 11:45 am. The river
remained above flood stage through the
day and finally receded back within its
banks at 11:45 pm on Dec 12th.
Low pressure tracked northeast from the
Gulf of Mexico and over the local area
along a stationary boundary from
December 11th through December 12th. A
prolonged period of rain, which was
heavy at times, caused widespread
flooding across Connecticut with total
rainfall amounts ranging from 2.75
inches to 4.50 inches. The Yantic River
at Yantic rose to a stage of 11.82 feet,
which corresponds to major flood stage.
CTZ005>012
Heavy Snow
A weak surface low tracked from the
Midwest during the morning of December
19, to off the southern New Jersey coast
in the evening. At the same time, a
large, sprawling high over eastern
Canada estimated at 1035 mb nosed
southward along the lee of the
Appalachians. The combination of the two
features provided a strong overrunning
event with widespread snowfall across
southern Connecticut.
Snowfall amounts averaged between 5 and
9 inches, with the highest amounts
occurring across the interior. The
following are snowfall ranges across the
area: Fairfield County, 5.5 inches in
Greenwich to 8.5 inches in Danbury;
Middlesex, 5.8 inches in Haddam to 8.5
inches in Clinton; New Haven, 4.8 inches
in Meriden to 8.5 inches Fort Trumbull,
and New London County, 5.0 inches in
Niantic to 9.0 inches in Lisbon and
Norwich.
DELAWARE
DEZ001>004
Strong Wind
Gusty west to northwest winds occurred
during the daylight hours on the 7th
across Delaware. Peak wind gusts
averaged around 50 mph and included 53
mph in Lewes (Sussex County), 48 mph in
Dover (Kent County) and 47 mph at the
New Castle County Airport. The strong
winds were caused by the pressure
difference between an intensifying low
pressure system that was moving through
the Saint Lawrence Valley and a high
pressure system building east from the
central Mississippi Valley.
Kent County
Blackiston
Milford Heavy Rain
Event precipitation totals included 3.31
inches in Kitts Hummock, 2.85 inches in
Dover and 2.51 inches in Viola.
Sussex County
Lincoln
Delmar State Line Ar Heavy Rain
Event precipitation totals included 4.88
inches in Bethany Beach, 4.80 inches in
Selbyville, 2.79 inches in Georgetown
and 2.59 inches in Milford.
New Castle County
1 SSW Edge Moor
1 SW Mt Cuba Flood
The Christina River at Coochs Bridge was
above its 10.5 foot flood stage from 729
p.m. EST through 954 p.m. EST on the
11th. It crested at 11.31 feet at 815
p.m. EST. The Red Clay Creek at Wooddale
was above its 7 foot flood stage from
401 a.m. EST through 615 a.m. EST on the
12th. It crested at 7.37 feet at 5 a.m.
EST.
Event precipitation totals included 2.88
inches in Townsend, 2.75 inches in
Blackbird and 2.60 inches at the New
Castle County Airport.
Heavy rain and flooding affected
Delaware on the 11th and 12th. Rain
began during the afternoon of the 10th
and continued through the 11th into the
early morning on the 12th. Rain fell at
its heaviest from the afternoon of the
11th until just after Midnight EST on
the 12th. Event precipitation totals
averaged two to five inches with the
highest amounts in Sussex County. In
addition to the poor drainage and field
flooding, a couple of rivers flooded in
New Castle County.
The heavy rain was caused by a low
pressure system that developed along the
Gulf Coast States on the 10th. This
intensifying low pressure system moved
northeast from Alabama on the morning of
the 11th, to central North Carolina
early in the evening on the 11th to near
Bridgeport, Connecticut at 7 a.m. EST on
the 12th.
DEZ002>004
Strong Wind
Strong southwest winds affected southern
half of Delaware from late in the
evening on the 11th into the early
morning of the 12th. Peak wind gusts
averaged around 45 mph. Some damaging
wind gusts also occurred as a line of
showers moved through the southern half
of the state.
The strong southwest winds were caused
by an intensifying low pressure system
that developed along the Gulf Coast
States on the 10th. This low pressure
system moved northeast from Alabama on
the morning of the 11th, to central
North Carolina early in the evening on
the 11th to near Bridgeport, Connecticut
at 7 a.m. EST on the 12th. The strongest
winds occurred when the region was in
the warm sector of the low pressure
system. Stronger winds aloft were able
to mix down more efficiently to the
surface. The strong winds ended after
the cold front moved through the area
early on the 12th.
Sussex County
Greenwood Thunderstorm Wind (65EG)
A line of showers was accompanied by
damaging winds as it moved through
Greenwood around 1 a.m. EST. A radio
tower lost part of its antenna, siding
was ripped away from a storage center
and the price sign and roof of a gas
station was damaged. No injuries were
reported.
Note: The estimated wind gust of 65
knots is equivalent to 75 mph.
Kent County
Milford Thunderstorm Wind (50EG)
A line of showers with damaging winds
knocked down a few trees and wires in
eastern Kent County.
Some damaging wind gusts accompanied the
showers located along the cold front in
central and southern Delaware early in
the morning on the 12th. Note: The
estimated wind gust of 50 knots is
equivalent to 58 mph.
DEZ001-002
Winter Weather
A wintry mix of mainly freezing rain and
some sleet fell during the first half of
the day across Kent and New Castle
Counties in Delaware. Plain rain fell
farther to the south. Around two tenths
of an inch of ice accrued on exposed
surfaces and took down some weak power
lines. Delmarva Power and Light reported
about 1,400 homes and businesses lost
power in their service area. The
greatest concentration in Delaware was
around Dover. Untreated roadways were
treacherous. Because this occurred on a
Sunday morning, the number of reported
accidents was relatively low. Speed
restrictions were placed on Interstate
495 in New Castle County.
The wintry mix was caused by a low
pressure system that moved from the
Mississippi Valley on the morning of the
20th east into southwest Ontario
Province on the morning of the 21st. A
secondary low pressure system formed on
the system's triple point over North
Carolina that morning and moved
northeast passing Cape Cod as it became
the primary low pressure system early in
the evening on the 21st. The secondary
low pressure system helped maintain
surface winds from the northeast and
kept temperatures below freezing until
the event ended on the morning of the
21st.
Strong Wind
DEZ002
Strong Wind
As a low pressure system intensified as
it moved from the Gulf of Maine into the
Canadian Maritimes overnight on the
21st, strong gusty west winds developed
across Delaware. The strongest winds
occurred across central and northern
Delaware from the late evening on the
21st into the pre-dawn hours on the
22nd. One large tree was knocked down in
Dover (Kent County). Peak wind gusts
averaged around 45 mph and included 44
mph at both the New Castle County
Airport and Sandtown (Kent County) and
40 mph at Slaughter Beach (Sussex
County).
DEZ001>004
Strong Wind
Strong southwest winds preceded a cold
frontal passage across Delaware on the
evening of the 24th until a little after
Midnight EST on the 25th. Peak wind
gusts averaged around 45 mph and
included 48 mph in Dover (Kent County),
46 mph in Georgetown (Sussex County), 45
mph in Sandtown (Kent County) and Walker
(New Castle County) and 43 mph in
Middletown (New Castle County).
High Wind
DEZ002>004
High Wind
High winds buffeted Delaware during the
afternoon of the 31st. Numerous tree
limbs, trees and power lines were
knocked down. Delmarva Power and Light
reported about 40,000 homes and
businesses lost power in their service
area including Delaware. Power was last
restored to homes in New Castle County
as late as January 2, 2009. Delaware
Electric Cooperative reported about
1,900 homes and businesses lost power in
Kent and Sussex Counties.
In Sussex County, a vehicle was damaged
after a heating and air-conditioning
unit was blown off the roof of a store
in the Tanger Outlet Center in Rehoboth.
A large fire at the Irish Eyes
Restaurant in Lewes was tough to contain
and battle because of the high winds
during the afternoon. The restaurant was
severely damaged. in Kent County, a few
homes in Smyrna lost shingles. One
downed tree damaged a home, garage and
two vehicles. Although winds started to
decrease that evening, many outdoor
activities and fireworks in celebration
of the New Year were cancelled in Dover
and Wilmington.
Peak wind gusts included 74 mph in
Hartley (Kent County), 70 mph in Lewes
(Sussex County), 59 mph at the New
Castle County Airport and 51 mph in
Georgetown (Sussex County).
The high winds were caused by the large
pressure difference between a rapidly
intensifying Alberta Clipper type low
pressure system moving through New
England and a strong high pressure
system approaching from the upper
Mississippi Valley.
DEZ001-002
Astronomical Low Tide
The persistent and strong west to
northwest offshore flow caused blowout
tides to occur in upper Delaware Bay as
well as along tidal sections of the
Delaware River during the evening low
tide on the 31st. The low tide at Reedy
Point (New Castle County) was 2.4 feet
below mean lower low water. Blowout
tides start at 1.8 feet below mean lower
low water.
FLORIDA, Northeastern
Marion County
1 E Citra
Thunderstorm Wind (50EG)
Power lines reported down in the City of
Ocala approximately 0925 EST with a
couple of trees reported down near the
City of Citra around 09S0 EDT.
Note: The estimated wind gust of 50
knots is equivalent to 58 mph.
Alachua County
2 WSW Alachua Thunderstorm Wind (50EG)
Wind lifted partially off of a large
distribution center building on Peggy
Road.
Note: The estimated wind gust of 50
knots is equivalent to 58 mph.
Duval County
1 NNE Mandarin
Tornado (EF0)
Two small waterspouts were observed on
the St Johns River by a motorist near
the Buckman Bridge and lasted for half a
minute or less.
Baker County
2 WNW Knabb Thunderstorm Wind (65ES)
A squall line moved across north Florida
and into the Magaretta area. As the
system moved into the area of Mack Ruise
Road and Ruise Lane a microburst
impacted the area with an estimated 60
to 75 mph sustained winds. One mobile
home had a hole punched through its
roof. A second structure, built largely
of particle board with no reinforcing
bracing, was unroofed with portions of
the roof thrown approximately 100 yards
to the north. The damage made this
structure uninhabitable and it was the
most severely impacted structure. A
third structure had its sheet metal roof
removed from the southern portion of the
structure and thrown to the north. Two
trees were snapped at the base and laid
flat to the north. A witness described
seeing a vortex and a second witness
described being lifted off the ground by
that vortex. These reports are
consistent with a possible gustnado and
it is believed that this is what
contacted the most severely affected
structure.
Note: The estimated wind speed of 65
knots is equivalent to 75 mph.
Duval County
1 N Lake Forest
Thunderstorm Wind (50EG)
Damage occurred to ship containers at
Talleyrand Avenue at approximately 1030
a.m. EST. Other minor damage was
reported near Bayard at 10:40 a.m. EST.
A squall line moved east across north
Florida over night on Wednesday 12/10
and during the day on Thursday 12/11.
Note: The estimated wind gust of 50
knots is equivalent to 58 mph.
FLORIDA, Northwest
FLZ012-014
Coastal Flood
Strong westerly winds ahead of a
vigorous storm system, which moved
northeast from the northern Gulf of
Mexico into Alabama and Georgia,
generated high surf, coastal flooding
and beach erosion along the Bay and Gulf
county coastline on the 10-11th.
FLZ013
Strong Wind
Strong winds associated with a line of
heavy showers downed trees and power
lines in Blountstown.
Wakulla County
5 SW Crawfordville Thunderstorm Wind (50EG)
Several trees and a TV antenna from a
mobile home on Lawhon Road were blown
down.
Note: The estimated wind gust of 50
knots is equivalent to 58 mph.
Jefferson County
Monticello Thunderstorm Wind (50EG)
A portion of the court house tin roof
was removed.
Note: The estimated wind gust of 50
knots is equivalent to 58 mph.
Madison County
7 W Madison
4 N Lee Thunderstorm Wind (50EG)
Several trees were down across the
central portion of the county.
Note: The estimated wind gust of 50
knots is equivalent to 58 mph.
Taylor County
1 W Boyd Thunderstorm Wind (50EG)
Several trees were down on Williamson
Lane off Boyd Road.
A line of severe thunderstorms downed
numerous trees and caused structural
damage in portions of the Big Bend.
Note: The estimated wind gust of 50
knots is equivalent to 58 mph.
FLORIDA, West Central
Manatee County
1 SW Anna
Maria Sound Thunderstorm Wind (43EG)
Minor damage occurred to sheds, lanais,
and aluminum roofs on carports in a
mobile home park.
Note: The estimated wind gust of 43
knots is equivalent to 49 mph.
Sarasota County
Laurel Thunderstorm Wind (43EG)
Eight mobile homes received minor damage
to lanais and carports.
A cold front moved through the area in
the early morning hours with a weak
squall line traveling just ahead of the
front. The line produced two areas of
minor straight line wind damage with
wind gusts of 40 to 50 mph. Note: The
estimated wind gust of 43 knots is
equivalent to 49 mph.
FLZ039-042-048
Frost/Freeze
A cold front moved through the area late
in the evening on 12/1 and through the
early morning hours on 12/2. Cold air
settled into the Nature Coast through
the day on 12/2 and allowed for several
hours of sub-freezing temperatures on
the morning of 12/3.
Levy County experienced several hours of
sub-freezing temperatures with lows from
27 to 31 degrees across the county. The
lowest temperature of 27 degrees
occurred at the cooperative station six
miles southeast of Chiefland. Citrus
County experienced over 9 hours of
sub-freezing temperatures in some
locations, with the lowest temperature
of 25 degrees occurring at a mesonet
station near Inverness.
Hernando County also had over 9 hours of
sub-freezing temperatures with the
lowest temperature of 24 degrees
occurring at the FAWN station in
Brooksville.
Sumter County had lows ranging from 28
to 32 degrees, with the lowest
temperature of 28 degrees occurring at
the cooperative station in Bushnell.
Pinellas County
2 ESE Belmont Thunderstorm Wind (43EG)
A sheet metal roof was tom off of a
porch of a local residence.
A gulf low pressure system lifted
through the deep south and pushed a cold
front through the area. A strong and
fast moving squall line developed ahead
of the cold front, bringing winds of 40
to 50 mph as it moved through the area.
Note: The estimated wind gust of 43
knots is equivalent to 49 mph.
FLORIDA, West Panhandle
Santa Rosa County
Allentown
Thunderstorm Wind (58EG)
Thunderstorms produced gusty winds that
damaged metal buildings in Allentown,
Severe thunderstorms moved across
northwest Florida producing strong winds
that damaged metal storage buildings in
Allentown. Note: The estimated wind gust
of 58 knots is equivalent to 67 mph.
Escambia County
Cantonment
Flash Flood
Slow moving thunderstorms produced 6 to
8 inches of rain around Cantonment. The
heavy rain caused several roads to be
temporarily closed and one house
suffered some minor water damage.
COPYRIGHT 2008 World Meteorological Organization
COPYRIGHT 2009 Gale, Cengage Learning
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