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Tornado Facts: Causes, Formation & Seeking Shelter - Live Science

www.livescience.com/21498-tornado-facts.html

Apr 19, 2016 ... Tornadoes are violent storms that kill 80 people each year. ... Tornado wind and debris cause most of the structural damage suffered, but nearly half of the .... Enormous Tornado-Blocking Walls: Could Wild Idea Really Work?

Tornadoes - Weather Wiz Kids weather information for kids

www.weatherwizkids.com/weather-tornado.htm

It is not fully understood about how exactly tornadoes form, grow and die. ... as widely recognized as tornadoes, they can cause comparable, and in some cases,  ...

Types and Causes of Tornadoes - Conserve Energy Future

www.conserve-energy-future.com/types-and-causes-of-tornadoes.php

Types and Causes of Tornadoes: A tornado is a strong, turbulent column of air, moving fast and keeping in contact with the earth's surface and a vertically ...

Tornado Story | How Tornadoes Form - Dangerous Weather

www.eo.ucar.edu/kids/dangerwx/tornado3.htm

How Do Tornadoes Form? Tornadoes are associated with large (supercell) thunderstorms that often grow to ... This causes a horizontal rotating column of air . 2.

Severe Weather 101: Tornado FAQ

www.nssl.noaa.gov/education/svrwx101/tornadoes/faq/

Wind speeds that high can cause automobiles to become airborne, ... We're not really sure what the highest wind speed might be inside a tornado, since strong ...

www.ask.com/youtube?q=Exactly Causes a Tornado&v=lmWh9jV_1ac
Aug 19, 2014 ... View full lesson: http://ed.ted.com/lessons/how-do-tornadoes-form-james-spann Tornadoes are the most violent storms on Earth, with wind ...

Causes of Tornadoes and How They Form - Weather - About.com

weather.about.com/od/tornadoe1/ss/tornadoes.htm

Learn what causes a tornado or twister, and the role of severe thunderstorms in ... is actually no real definition of a tornado that has been universally accepted ...

What causes tornadoes? - Quora

www.quora.com/What-causes-tornadoes

May 26, 2011 ... Then I told her that when the conditions are just right, the rolls sometimes stand on one end and become tornadoes. I said we don't exactly ...

How Tornadoes Form and Why They're so Unpredictable

news.nationalgeographic.com/2015/05/150511-tornadoes-storms-midwest-weather-science/

May 11, 2015 ... A tornado lowers to the ground near Chickasha, Oklahoma, on May 6 ... This happens when air descending from the supercell causes rotation near the ground .... Sometimes the system "makes really good forecasts, and other ...

Tornadoes: Really Twisted Winds - For Dummies

www.dummies.com/how-to/content/tornadoes-really-twisted-winds.html

The question of which of the conditions on the menu for severe thunderstorms actually causes tornadoes to form in these storms remains one of the most difficult ...

Answer
Clouds form when water vapor condenses in the air. This releases heat, which increases the updraft temperature and the kinetic energy of air movement. In supercell thunderstorms, updrafts are strong and may create a vortex of air that may form a tornado.
Most scientists consider this to be a simplified and incomplete explanation. The finer details of tornado formation and dissipation are still unknown.
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What causes tornadoes?

www.weatherquestions.com

May 30, 2013 ... A description of the special conditions that can cause a thunderstorm to become tornadic.

The Science of Tornadoes | Weather Underground

www.wunderground.com

A tornado is a violently rotating column of air which descends from a ... and the surrounding winds may cause the updraft to begin rotating-and a tornado is born.

What Are Tornadoes? - Definition, Causes & The Enhanced Fujita ...

study.com

But a tornado doesn't begin to form until the air starts to spin. Scientists are not exactly sure how this happens, but it seems that one way this is possible is when  ...