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5 Cards in this Set

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What is a tornado?
A violently rotating column of air that is often visible as a funnel cloud.
How do tornadoes form?
Warm, moist air meets cold and dry air to form a tornado.The most destructive and deadly tornadoes occur from supercells, which are rotating thunderstorms with a well-defined radar circulation.
What direction do tornadoes come from?
Tornadoes can appear from any direction.
Does hail always come before the tornado?
Not necessarily
How long do tornadoes last?
Tornadoes can last from several seconds to more than an hour.