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ClimateCentral • 2 years ago

You Say ‘Derecho,’ We Say ‘Must-See’ Video - The cluster of severe thunderstorms that paralyzed the nation's capital for days beginning on June 29 originated in the Midwest. Fed by record warm surface temperatures, as well as a stationary boundary between hot and humid air to the south and cooler and drier air to the north, along with strong winds in the upper atmosphere, the storms organized into a bow shape, charging forward at speeds of near 60 mph. The storms produced widespread wind damage

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