The Fujita Scale is used to rate the intensity of a tornado by examining the damage caused by the tornado after it has passed over a man-made structure.
|
F-scale |
Intensity |
Wind Speed |
| F- 0 | Gale | 40 - 72 mph |
| F- 1 | Moderate | 73 - 112 mph |
| F- 2 | Significant | 113 - 157 mph |
| F- 3 | Severe | 158 - 206 mph |
| F- 4 | Devastating | 207 - 260 mph |
| F- 5 | Incredible | 261 - 318 mph |
Source and for more information: http://www.tornadoproject.com/fscale/fscale.htm