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30 June 2012

Midwest and DC Rocked by Derecho

Many people now know a term that only meteorologists and weather geeks usually know. Derecho. (It’s pronounced “da ray show”) A derecho is a fast-moving cluster of thunderstorms that produces very high winds, and moves very rapidly. They like to form in June and July, and they favor certain areas of the country like the Midwest, Great Lakes, and Mid-Atlantic/Pennsylvania. They also tend to form on the north side of …


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