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orig how tornadoes form_00000019
orig how tornadoes form_00000019

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    How do tornadoes form?

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How do tornadoes form?

CNN meteorologist Jennifer Gray explains how tornadoes form and why they are one of the most dangerous weather phenomena on Earth.

How do tornadoes form?

CNN meteorologist Jennifer Gray explains how tornadoes form and why they are one of the most dangerous weather phenomena on Earth.