Tornado Ranking

Fujita Scale for Damaging Wind

Rank Category

Mph

Damage


F0
 

Weak

40-72

Tree branches, signs, and chimneys damaged. Shallow-rooted trees pushed over.


F1
 

73-112

Roofs damaged, mobile homes moved off foundations, trees snapped, moving autos pushed off roads.


F2
 

Strong

113-157

Roofs removed from frame houses, large trees snapped or uprooted, mobile homes destroyed, boxcars overturned.


F3
 

158-206

Walls removed from well-constructed houses, cars overturned, most trees leveled.


F4
 

Violent

207-260

Well-constructed houses destroyed, cars thrown.


F5
 

261-318

Well-constructed houses lifted up and disintegrated, automobile-sized structured thrown over 100 meters, steel-reinforced concrete badly damaged.


F6
*
 

319-379

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*Although it is possible that a tornado could reach F6 intensity, the evidence that it touched down would be masked by the damage caused by surrounding winds.