What is the Enhanced Fuijta Scale?

Measuring wind speed in a tornado is nearly impossible.

Not only are tornadoes relatively small-scale phenomena, but they can destroy just about any unprotected weather instrument placed in their path.

This is why a measurement scale for estimating the intensity of tornadoes due the damage they cause was developed.

The Fujita (F) scale, showing approximate wind speed ranges, was devised in 1971 and revised in 2007 to become the Enhanced Fujita (EF) Scale.