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Tornado Formation - Windows to the Universe

www.windows2universe.org/earth/Atmosphere/tornado/formation.html

Apr 29, 2016 ... RSS Feeds. Atmospheric conditions typical during tornado formation. ... A tornado begins in a severe thunderstorm called a supercell.

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. Here are some facts about how they form and how to stay safe.

www.ask.com/youtube?q=Formation of a Tornado&v=006guBgSf14
Jun 2, 2010 ... Awesome footage of a tornado developing just outside Campo, Colorado. 05/31/ 2010. Incredible view of it from less than a mile away! You can ...

Birth of a Tornado - National Geographic

video.nationalgeographic.com/video/news/us-tornado-formation-vin

May 21, 2013 ... May 21, 2013—Two days before a tornado—with winds clocked at over 200 ... captured this video of a tornado forming in south-central Kansas.

How a Tornado Forms in 4 Steps - Popular Mechanics

www.popularmechanics.com/science/environment/a15633/how-a-tornado-forms-in-4-steps/

May 19, 2015 ... When those tubes are ingested into the updraft, they become vertical and the storm acquires rotation, forming a supercell.

Severe Weather 101: Tornado Basics

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

Tornado formation is believed to be dictated mainly by things which happen on the storm scale, in and around the mesocyclone. Recent theories and results ...

Tornadoes - Weather Wiz Kids weather information for kids

www.weatherwizkids.com/weather-tornado.htm

A tornado is a violent rotating column of air extending from a thunderstorm to the ground. The most violent tornadoes are capable of ... Tornado Formation ...

Tornado Story | How Tornadoes Form - Dangerous Weather

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

Tornadoes are associated with large (supercell) thunderstorms that often grow to over 40,000 feet. A column of warm humid air will begin to rise very quickly. 1.

How Do Tornadoes Form? | Social Studies, Science | Video | PBS ...

www.pbslearningmedia.org/resource/ess05.sci.ess.watcyc.downdraft/how-do-tornadoes-form/

On average, about 800 tornadoes occur in the United States each year. They can appear and disappear in moments, and key details about their formation are ...

How do tornadoes form? - eSchooltoday

eschooltoday.com/natural-disasters/tornadoes/how-do-tornadoes-form.html

tornado tips Step 6: The tornado is fully formed now and moving in the direction of the thunderstorm winds. When the pointed part of the tornado touched the ...

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.
More Info

How Are Tornadoes Formed - Universe Today

www.universetoday.com

There is a clear set of steps in the formation of a tornado. First, just before the thunderstorm develops, a change in wind direction and an increase in wind speed, ...

How are Tornadoes Formed? - Conserve Energy Future

www.conserve-energy-future.com

How Do Tornadoes Form? A tornado is a strong, turbulent column of air, moving fast and keeping in contact with the earth's surface and a vertically formed cloud ...

How Tornadoes Form and Why They're so Unpredictable

news.nationalgeographic.com

May 11, 2015 ... The supercell churns high in the air and, in about 30 percent of cases, it leads to the formation of a tornado below it. This happens when air ...