Tornadoes (by ashleyhop)

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Tornadoes (by ashleyhop)

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Definition of a tornado: A violently rotating column of air extending from a thunderstorm to the ground. It is in contact with both the surface of the earth and a cumulonimbus cloud, or, in rare cases, the base of a cumulus cloud.-C.A. Doswell (2001)

The Fujita scale, named after tornado expert Theodore Fujita, ranks tornadoes according to how much damage they cause. Fortunately, only one percent of tornadoes are classified as violent (F4 and F5). -Daniel, L., Rillero, P., Snyder, S.L., & Zike, D. (2007)

Although tornadoes occur in many parts of the world, these destructive forces of nature are found most frequently in the United States east of the Rocky Mountains during the spring and summer months. -United States Department of Commerce: National Oceanic and Atmospheric Administration (1995)

Interesting fact: The famous "Tri-state" tornado of March 18, 1925 was the deadliest tornado in the United States. It killed 695 people and traveled 60 to 73 miles per hour over a 219 mile long track across parts of Missouri, Illinois, and Indiana. -Dangerous Planet (2012)

Incredible Weather: All About Tornadoes!

Watch this fascinating video about tornadoes by National Geographic Television!

*Click on the Fujita Scale below to learn more about how tornadoes are formed the damage they cause.

*Click on the tornado above to learn everything there is to know about tornadoes!



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