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Fujita Damage Classification Scale
F SCALE WIND SPEED DAMAGE SPECIFICATIONS
F0 40-72 MPH LIGHT DAMAGE; SOME DAMAGE TO CHIMNEYS, TV
ANTENNAS; BREAKS TWIGS OFF TREES; PUSHES
OVER SHALLOW-ROOTED TREES.
F1 73-112 MPH MODERATE DAMAGE; PEELS SURFACE OFF ROOFS;
WINDOWS BROKEN; LIGHT TRAILER HOMES PUSHED
OR TURNED OVER; SOME TREES UPROOTED OR SNAPPED;
MOVING AUTOMOBILES PUSHED OFF ROADWAY.
F2 113-157 MPH CONSIDERABLE DAMAGE; ROOFS TORN OFF FRAME
HOUSES LEAVING STRONG UPRIGHT WALLS; WEAK
BUILDINGS DEMOLISHED; TRAILER HOUSES DESTROYED;
LARGE TREES SNAPPED OR UPROOTED; RAILROAD
BOXCARS PUSHED OVER; LIGHT OBJECT MISSILES
GENERATED; CARS BLOWN OFF ROADWAYS.
F3 158-206 MPH SEVERE DAMAGE; ROOFS AND SOME WALLS TORN OFF
FRAME HOUSES; SOME BUILDINGS COMPLETELY
DESTROYED; TRAINS OVERTURNED; STEEL-FRAMED
BUILDINGS TORN; CARS LIFTED OFF OF THE GROUND;
MOST TREES UPROOTED OR SNAPPED AND LEVELED.
F4 207-260 MPH DEVASTATING DAMAGE; WHOLE FRAME HOUSES
DESTROYED LEAVING DOWNWIND PILES OF DEBRIS;
STEEL STRUCTURES BADLY DAMAGED; TREES DEBARKED
BY SMALL FLYING DEBRIS; CARS AND TRAINS THROWN
SOME DISTANCE; LARGE WIND BLOWN MISSILES
GENERATED.
F5 261-318 MPH INCREDIBLE DAMAGE; WHOLE FRAME HOUSES TOSSED
OFF FOUNDATION AND BLOWN DOWNWIND; STEEL-
REINFORCED CONCRETE STRUCTURES BADLY DAMAGED;
AUTOMOBILE-SIZED MISSILES GENERATED; INCREDIBLE
PHENOMENA CAN BE EXPECTED TO OCCUR.
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