How do scientists classify tornadoes?

Flexi Says: The winds of a tornado can reach very high speeds. The faster the winds blow, the greater the damage they cause. Wind speed and damage are used to classify tornadoes.
F-Scale Rating | Wind Speed (kilometers per hour) | Wind Speed (miles per hour) | Damage |
---|---|---|---|
F0 | 64-116 | 40-72 | Light - tree branches fall and chimneys may collapse |
F1 | 117-180 | 73-112 | Moderate - mobile homes, autos pushed aside |
F2 | 181-253 | 113-157 | Considerable - roofs torn off houses, large trees uprooted |
F3 | 254-332 | 158-206 | Severe - houses torn apart, trees uprooted, cars lifted |
F4 | 333-419 | 207-260 | Devastating - houses leveled, cars thrown |
F5 | 420-512 | 261-318 | Incredible - structures fly, cars become missiles |
F6 | >512 | >318 | Maximum tornado wind speed |