Fujita Scale (EF) 1
Fujita Scale (EF) 1 :
Natural Disaster. An empirical scale for estimating the wind speed of a tornado from the damage it causes. The scale, as developed by the American meteorologists Theodore Fujita and Allen Pearson, ranged from F0 to F5. In 2007, the U.S. National Weather Service began using a revised version called the EF (Enhanced Fujita) scale; the designations in the new scale are EF0 to EF5
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