He immersed himself in research on tornadoes and introduced the “Fujita Scale”, a six-point scale to classify degrees of tornado intensity.
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On Today's Date: The Enigma Tornado OutbreakT ornado historian Thomas Grazulis listed 37 "strong tornadoes" in this outbreak across eight states, what would today earn at least an EF2 rating on the Enhanced Fujita scale. (This happened ...
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