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Derecho - The Inland Hurricane

A derecho isn't meteorologically anything like a hurricane, but its impact is similar. Instead of winds spinning around a calm centre, the violent winds of a derecho are all lined up at the front and travel in the same direction. The most recent classification criteria is a storm complex (swarm) lasting a while, at least 650 km wide and 100 km deep. It's a 400-mile-wide bulldozer that plows along, possibly giving birth to comparatively weak tornadoes along the way.

The 2022 May derecho moved along about 90 km/h on a four-hour tour of major metropolises: Sarnia to Toronto to Kingston to Ottawa to Montreal to Quebec.

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