A tornado is a violently rotating column of air that rotates while in contact with
both the surface of the Earth and a cumulonimbus cloud or, in rare cases, the
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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 ...
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.
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.
Because wind is invisible, it is hard to see a tornado unless it forms a
condensation funnel made up of water droplets, dust and debris. Tornadoes are
the most ...
Apr 2, 2015 ... CNN meteorologist Jennifer Gray explains how tornadoes form and why they are
one of the most dangerous weather phenomena on Earth.
Here is simple step by step description of how a tornado develops.
A tornado is a violently rotating column of air which descends from a ... A funnel
cloud is made visible by cloud droplets, however, in some cases it can appear to
Tornadoes are usually the extreme result of a very large thunderstorm called a
supercell. During the storm cold air and warm air combine. The cold air goes.
Tornadoes are one of the most powerful and deadly weather phenomena on land
. They can destroy entire town and fling debris over great distances. However ...