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Tornado

en.wikipedia.org/wiki/Tornado

Formation ... the RFD also reaches the ground, creating a gust front that can cause severe damage a good distance from the tornado.

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 over 40,000 feet. A column of warm humid air will ...

www.ask.com/youtube?q=How Is a Tornado Formed&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 ...

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.

How do tornadoes form? - CNN Video - CNN.com

www.cnn.com/videos/tv/2015/04/02/orig-how-tornadoes-form.cnn

Apr 2, 2015 ... CNN meteorologist Jennifer Gray explains how tornadoes form and why they are one of the most dangerous weather phenomena on Earth.

How Are Tornadoes Formed - Universe Today

www.universetoday.com/71983/how-are-tornadoes-formed/

Aug 24, 2010 ... Tornadoes are usually the extreme result of a very large thunderstorm called a supercell. During the storm cold air and warm air combine.

The Science of Tornadoes | Weather Underground

www.wunderground.com/resources/severe/tornadoFAQ.asp

The truth is that scientists don't fully understand how tornadoes form. A parent supercell thunderstorm is needed. Beyond that, each storm is different.

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 ... Beneath the storm, winds of different speeds (shear) form horizontal tubes of ... As air rushes in to equalize the pressure, a tornado is formed.

Tornado Formation - Windows to the Universe

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

Apr 29, 2016 ... The severe thunderstorms which produce tornadoes form where cold dry polar air meets warm moist tropical air. This is most common in a ...

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 ...

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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Tornadoes - Weather Wiz Kids weather information for kids

www.weatherwizkids.com

How do tornadoes form? Most tornadoes form from thunderstorms. You need warm, moist air from the Gulf of Mexico and cool, dry air from Canada. When these ...

How Tornadoes Form and Why They're so Unpredictable

news.nationalgeographic.com

May 11, 2015 ... A tornado lowers to the ground near Chickasha, Oklahoma, on May 6. May and June tend to have more tornadoes than any other months in ...

How do tornadoes form? - eSchooltoday

eschooltoday.com

Here is simple step by step description of how a tornado develops.