The EF scale is to measure tornados

Ef0

65-85 mph winds

Ef1

86-109 mph winds

Ef2

110-137 mph winds

Ef3

138-167 mph winds

Ef4

168-199 mph winds

Ef5

200-234 mph winds

The F scale also measures tornados

F0:45-78 mph wind speeds

F1:79-117 mph wind speeds

F2:118-161 mph wind speeds

F3:162-209 mph wind speeds

F4:210-261 mph wind speeds

F5:262-317 MPH WIND SPEEDS!!