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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.

Tornado Facts: Causes, Formation & Seeking Shelter - LiveScience


Jul 10, 2012 ... Tornadoes are violent storms that kill 80 people each year. Here are some facts ... Tornado Facts: Causes, Formation & Staying Safe. by Nola .... in May 2013. Enormous Tornado-Blocking Walls: Could Wild Idea Really Work?

Tornadoes - Weather Wiz Kids weather information for kids


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,  ...

What causes tornadoes?


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

The Science of Tornadoes | Weather Underground


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.

Severe Weather 101: Tornado FAQ - NSSL - NOAA


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 ...

How Do Tornadoes Form?


Tornadoes are associated with large (supercell) thunderstorms that often grow to over 40,000 feet. A column ... This causes a horizontal rotating column of air. 2.

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


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  ...

Tornadoes: Really Twisted Winds - For Dummies


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 ...

Answers Archive: Tornado Science - Usatoday.com - News Section


Q: What are the weather conditions most likely to cause tornadoes to develop? ..... But, scientists still have questions about exactly what (there's probably more ...

Popular Q&A
Q: What exactly is the Tornado Framework?
A: It's a Python web framework for building web sites. It's like Ruby on Rails (except Tornado is in Python) and Django (except Tornado is single threaded). It doe... Read More »
Source: www.quora.com
Q: What Do Tornadoes Cause?
A: The Fujita Scale, or F-scale, is a damage scale created by T. Theodore Fujita to relate the degree of a tornado's damage to its wind speed. In 2007, scientists ... Read More »
Source: www.ehow.com
Q: What Causes Tornadoes?
A: Tornadoes usually appear along the line of a cold front as it collides with warm, moist air east of it. This usually brings about instability and wind shear. Al... Read More »
Source: www.ehow.com
Q: What causes tornado damage?
A: Tornado damaged is caused by a tornado's powerful winds and objects carried y those winds. Read More »
Source: wiki.answers.com
Q: What cause tornado?
A: •The day he came was the day he left, it was as fast as lightning yet as effective as your feelings. •Everything froze for merely a second the tornado stormed t... Read More »
Source: wiki.answers.com