Wednesday, June 12, 2013

What is a derecho? Meteorologist explains

What is a derecho? Meteorologist explains | Indianapolis Star | indystar.com:
"A derecho is a widespread, long-lived wind storm associated with a band or shelf of rapidly moving thunderstorms.
By definition, a derecho has to be at least 240 miles long and have winds of at least 58 miles per hour or greater."

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