Tornado Wind Speed Scale

Because there are few actual measurements of tornado wind speed, their intensity it estimated through after-the-fact examination of the damage that they produced. Tornadoes are then classified according to the Enhanced Fujita Scale. The EF wind speeds are estimates of the strongest tornado wind gusts occurring at 10 meters (about 33 feet) above ground.

EF0: 65 – 85 mph

EF1: 86 – 110 mph

EF2: 111 – 135 mph

EF3: 136 – 165 mph

EF4: 166-200 mph

EF5: over 200 mph

 

 

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