Fujita-Pearson Tornado Scale
| F0 | Gale Tornado (40 - 72 mph) |
P0 PATH length: 0.3-0.9 miles P0 PATH width: 6-17 yards |
Light damage; Some damage to chimneys; branches broken off trees; shallow-rooted trees pushed over; sign boards damaged. |
| F1 | Moderate Tornado (73 - 112 mph) |
P1 PATH length: 1.0-3.1 miles P1 PATH width: 18-55 yards |
Moderate damage; The lower limit is the beginning of hurricane wind speed; peels surface off roofs; mobile homes pushed off foundations or overturned; moving autos pushed off the road; attached garages may be destroyed. |
| F2 | Significant Tornado (113 - 157 mph) |
P2 PATH length: 3.2-9.9 miles P2 PATH width: 56-175 yards |
Considerable damage; entire roofs torn from frame houses; mobile homes demolished; boxcars pushed over; large trees snapped or uprooted; light-object missiles generated. |
| F3 | Severe Tornado (158 - 206 mph) |
P3 PATH length: 10-31 miles P3 PATH width: 176-566 yards |
Severe damage; walls torn from well-constructed houses; trains overturned; most trees in forests uprooted; heavy cars lifted off ground and thrown. |
| F4 | Devastating Tornado (207 - 260 mph) |
P4 PATH length: 32-99 miles P4 PATH width: 0.3-0.9 miles |
Well-constructed houses leveled; structures with weak foundations blown off some distance; cars thrown and large missiles generated. |
| F5 | Incredible Tornado (261 - 318 mph) |
P5 PATH length: 100-315 miles P5 PATH width: 1.0-3.1 miles |
Strong frame houses lifted off foundations and carried considerable distances to disintegrate; automobile-sized missiles fly through the air 100 yards or more; trees debarked; steel reinforced concrete structures badly damaged. |
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