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What weather conditions cause a tornado to form?

tornades, tornadoes

What weather conditions cause a tornado to form? Over 1,000 tornadoes form each year in the United States.

Cold, dry air aloft from the North Pole meets warm, humid air from the Gulf of Mexico. These air masses of different temperatures and pressures cannot mix.

Cold help aloft descends, while warm air rises faster and faster. This forms cumulus, then cumulonimbus which will quickly turn into a tornado.

The debris forms the bush that the tornado can suck up.

Tornadoes are classified on the Fujita scale from F0 to F5.

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