The enhanced Fujita scale

Storm Data, Sept, 2007

The Enhanced Fujita Scale

                           Wind Speed
EF-Scale   Intensity       (mph)        Typical Damage (Suggested)

EF0        Gale Tornado    40-72        Tree branches broken,
                                        chimneys damaged,
                                        shallow-rooted trees
                                        damaged or destroyed,
                                        pushed over; sign boards
                                        outbuildings and sheds
                                        destroyed.

EF1        Moderate        73-112       Roof surfaces peeled off,
                                        mobile homes pushed off
                                        foundations or overturned,
                                        moving autos pushed off the
                                        roads, garages may be
                                        destroyed.

EF2        Significant     113-157      Roofs blown off frame
                                        houses; mobile homes
                                        demolished and/or
                                        destroyed, train
                                        boxcars pushed over;
                                        large trees snapped
                                        or uprooted; airborne
                                        debris can cause
                                        damage.

EF3        Severe          158-206      Roofs and walls torn
                                        off well constructed
                                        houses; trains
                                        overturned; large
                                        trees uprooted,
                                        can knock down
                                        entire forest
                                        of trees.

EF4        Devastating     207-260      Well-constructed frame
                                        houses leveled;
                                        structures with weak
                                        foundations blown
                                        off some distance;
                                        automobiles thrown,
                                        large airborne
                                        objects can cause
                                        significant damage.

EF5        Incredible      261-318      Brick, stone and
                                        cinder-block buildings
                                        destroyed, most debris
                                        is carried away by
                                        tornadic winds, large
                                        and heavy objects can
                                        be hurled in excess
                                        of 100 meters, trees
                                        debarked, asphalt
                                        peeled off of roads,
                                        steel reinforced
                                        concrete structures
                                        badly damaged.

EF6        Inconceivable   319-379      Brick, stone and
                                        cinderblock buildings
                                        destroyed, most
                                        debris is carried away
                                        by tomadic winds,
                                        large and heavy
                                        objects can be hurled in
                                        excess of 100 meters,
                                        trees debarked, asphalt
                                        peeled off of roads,
                                        steel reinforced
                                        concrete structures
                                        badly damaged.

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Typical EF0 Tornado Damage

Note the trees are stripped of leaves but the trees remain standing. Only light roof damage and a few missing shingles.

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Typical EF1 Tornado Damage

Note the uprooted trees and missing shingles from the roof. There is significant roof damage.

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Typical EF2 Tornado Damage

This home is missing its entire roof but the exterior walls remain intact. Some of the stronger hardwood trees remain standing

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Typical EF3 Tornado Damage

This home is missing the entire roof as well as some of the exterior walls. Trees are blown over or snapped near the base and outbuildings are destroyed.

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Typical EF4 Tornado Damage

This home is almost completely obliterated, with no walls standing. The debris from the home is where the house once stood.

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Typical EF5 Tornado Damage

The asphalt surface has been peeled off of this road.

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Typical EF6 Tornado Damage