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A tornado is a violently rotating column of air that rotates while in contact with both the surface ... The Fujita scale rates tornadoes by damage caused and has been replaced in some countries by t...

How Tornadoes are Formed - Universe Today


The most dangerous part of the tornado is not the visible part its the winds created by the high pressure air being sucked into the tornado. This is what creates ...

www.ask.com/youtube?q=What Creates a Tornado&v=lmWh9jV_1ac
Aug 19, 2014 ... Meteorologist James Spann sheds light on the lifespan of tornadoes as ..... This heat will then cause parts of the air to rise even more (causing ...

What causes tornadoes?


May 30, 2013 ... The intense spinning of a tornado is partly the result of the updrafts and downdrafts in the thunderstorm (caused by the unstable air) interacting ...

About Tornadoes | Weather Underground


Interactive Tornado Map! ... View More Tornado Photos ... the updraft and the surrounding winds may cause the updraft to begin rotating-and a tornado is born.

What causes a tornado to form? | Reference.com


According to the National Oceanographic and Atmospheric Administration, tornadoes form when warm air creates a rotating updraft in a powerful thunderstorm.

How a Tornado Forms


The first thing that is needed to produce a tornado is a thunderstorm. ... The warm air rises from the lower atmosphere causing an updraft, which mixes with the ...

How do tornadoes form? - eSchooltoday


Here is simple step by step description of how a tornado develops. ... but here is an explanation that many believe is the closest possible cause of tornadoes.

How Tornadoes Form and Why They're so Unpredictable


May 11, 2015 ... A tornado lowers to the ground near Chickasha, Oklahoma, on May 6. ... Half of those deaths are caused by the strongest one percent of the ...

How a Tornado Forms in 4 Steps - Popular Mechanics


May 19, 2015 ... Warm, moist air, usually from the south, is lifted by a warm or cold front, causing an updraft. The moisture condenses into clouds and ...

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


A tornado is a violent rotating column of air extending from a thunderstorm to the ... Waterspouts can sometimes move inland, becoming tornadoes causing ...

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


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 ...

Tornado Story | How Tornadoes Form - Dangerous Weather


Tornadoes are associated with large (supercell) thunderstorms that often grow to ... and hail in the thunderstorm cause the funnel to touch down creating a tornado .