Derecho

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derecho

A widespread convectively induced straight-line windstorm.

Specifically, the term is defined as any family of downburst clusters produced by an extratropical mesoscale convective system. Derechos may or may not be accompanied by tornadoes. Such events were first recognized in the Corn Belt region of the United States, but have since been observed in many other areas of the midlatitudes.

Johns, R. H., and W. O. Hirt 1987. Derechos: Widespread convectively induced windstorms. Wea. Forecasting. 2. 32–49.


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