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F0 = 39-54 MPH winds, Loose litter raised, twigs snapped, crop trails
F1= 55-72 MPH winds, Minor shed damage, lawn chairs raised
F2=73-92 MPH winds, Mobile homes displaced, big branches busted
F3=93-114 MPH winds, Mobile homes overturned, big trees
F4=115-136 MPH winds, Mob. homes destroyed,
F5=137-160 MPH winds, Cars levitated, house walls standing
F6=161-186 MPH winds, Heavy vehicals lifted, house walls/roof off
F7=187-212 MPH winds, Frame house demolished, trains over turned
F8=213-240 MPH winds, Steel frame buildings buckled, cars hurled far
F9=241-269 MPH winds, Trains hurled long way, complete de-barking
F10=270-299 MPH winds, Steel-reinforced concrete buildings severly dmgd
