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Bookmark or Share- U.S. Tornadoes | National Centers for Environmental ...U.S. Tornadoes data and statistics. NOAA's National Centers for Environmental Information
- Tornado facts and information - National GeographicWhat is a tornado? A tornado is a violently rotating column of air that extends from a thunderstorm to the ground. It's often portended by a dark, greenish sky.
- Severe Weather 101: Tornado Basics - NOAA National Severe ...What is a tornado? A tornado is a narrow, violently rotating column of air that extends from a thunderstorm to the ground. Because wind is invisible, it is hard to see a tornado unless it forms a condensation funnel made up of water droplets, dust and debris.
- Tornadoes - National Oceanic and Atmospheric AdministrationEach year more than 1,200 tornadoes take place in the United States. These destructive and awe-inspiring events are notoriously difficult to predict. Yet, NOAA and others are deepening our understanding of tornadoes and improving warning times to save lives.
- Tornado - WikipediaA tornado is a violently rotating column of air that is in contact with both the surface of the Earth and a cumulonimbus cloud or, in rare cases, the base of a cumulus cloud.
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