Maps show how "Tornado Alley" has shifted in the U.S.
Maps of patterns of tornadogenesis, or the process by which a tornado forms, show that between 1951 and 1985, tornado ...
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10 tornado facts, including one that hit with 300-mph winds
Tornado Alley is infamous for massive tornadoes, but destructive twisters can happen anywhere in the country. On May 31, 1985, a tornado outbreak in Pennsylvania, Ohio and New York killed 89 ...