WEST LAFAYETTE, Ind. – A Purdue University study of tornado formation indicates that twisters can develop in unexpected ways and at unexpected times and places, a discovery that presents a new twist to weather watchers across the country.
Although tornadoes are often conceived of as arising from springtime storms that develop in early evenings out of isolated weather cells, a new study spearheaded by Purdue's Robert "Jeff" Trapp indicates those conceptions often fail to hold, especially in the Midwest.
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