Fujita scale

The Fujita scale is for rating tornado intensity and is based principally on the damage done to structures and trees.

On This Page

Additional Information

Meteorologists and engineers typically determine the official Fujita scale category after an exhaustive aerial and ground-level damage survey. The scale ranges from F0 (light damage with winds under 73 mph) to F4 (devastating damage with winds from 207 to 260 mph).