What Does a Derecho Look Like?

Late Friday, June 29, 2012 a destructive set of thunderstorms swept through the Mid-Atlantic region. With winds of up to 80 mph, the storms produced extensive damage and left several million utility customers without electricity. The National Weather Service (NWS) refers to this kind of fast-moving, long-lived, large, and violent thunderstorm complex as a “derecho.”…

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