When was the first tornado?


Quick Answer

Tornadoes have almost certainly existed on Earth for as long as the planet has had an atmosphere. A tornado is a spinning whirlwind of air that can achieve internal speeds between 40 mph and 300 mph.

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When was the first tornado?
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Full Answer

According to the University of Michigan, the early atmosphere of the Earth formed after the primordial hydrogen was lost to space during the Earth's formation nearly 5 billion years ago. This was a period of heavy volcanism, and the first native atmosphere the Earth developed would have been composed primarily of gases expelled by volcanoes. It's all but certain this water vapor-carbon dioxide atmosphere would have hosted cyclonic storms and tornadoes.

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