EF SCALE – The enhanced Fujita Scale has been used by the National Weather Service since February 2007 to measure the damage caused by a tornado. Find out how the scale was created and what it measures.
Tornadoes are nature’s most violent storms; having destructive winds in excess of 250 mph they can destroy anything in their path. Tornadoes are fascinating to watch and will almost mesmerize you like watching a fire, but they can be extremely dangerous to watch from close range. The wind speed of the tornado determines how the tornado is rated on the Fujita scale or EF scale.