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A tornado is a violently spinning column of air in contact with both a cumiliform cloud base and the surface.

A tornado is typically shaped like a funnel with the narrow end on the ground.

Tornadoes are known for being extremely destructive and are usually visible due to water vapor from clouds and debris from the ground.

Note: This article excerpts material from the Wikipedia article "Tornado", which is released under the GNU Free Documentation License.

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