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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?

What causes a tornado? | Reference.com

www.reference.com/science/causes-tornado-63b8e55c58ecb272

Strong warm updrafts carrying large amounts of moisture interacting with fast- moving cool, dry winds above cause tornadoes when the two air currents begin to ...

The Science of Tornadoes | Weather Underground

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

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.

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 ...

Tornadoes | Weather Wiz Kids

www.weatherwizkids.com/?page_id=60

Waterspouts can sometimes move inland, becoming tornadoes causing damage ... We're not really sure what the highest wind speed might be inside a 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 ... This causes a horizontal rotating column of air . 2.

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

www.econet.org.uk/weather/tornad.html

Tornadoes can produce the strongest winds on earth, close to 300 miles per hour . ... wide, their destructive path can cause damage a mile wide for over 50 miles. ... United Kingdom that actually experiences the most tornadoes by land area, ...

What causes tornadoes? | MNN - Mother Nature Network

www.mnn.com/earth-matters/translating-uncle-sam/stories/what-causes-tornadoes

Apr 8, 2014 ... The U.S. has more tornadoes than anywhere else on Earth, but their sudden ... which could collapse and actually cause winds to speed up.

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

What causes tornadoes?

www.weatherquestions.com

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

Severe Weather 101: Tornado Basics

www.nssl.noaa.gov

Basic information about tornadoes, from the NOAA National Severe Storms ... The rear flank downdraft is the motion in the storm that causes the hook echo ...

What Causes Tornadoes? - Science 2.0

www.science20.com

Jun 6, 2010 ... Tornadoes form in violent thunderstorms when there is sufficient instability, ... This is the same process that causes an ice skater to spin faster when .... Shill, We're Really Bad At It · If You Get Hangry, Science Has Your Back ...