What is the critical differentiator between a severe thunderstorm that will not produce a tornado and one that is capable of doing so?

Answer

Rotation

While darkness signals intensity, the presence of rotation around a vertical axis is the essential characteristic differentiating a severe storm from one capable of producing a tornado.

What is the critical differentiator between a severe thunderstorm that will not produce a tornado and one that is capable of doing so?

#Videos

Everyone should know to look out for these clouds - YouTube

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