Friday 2 April 2010

Tornadoes!

A tornado is a funnel shaped column of air that rotates violently, extends from a thunderstorm, and touches the ground, can be between a few meters, and a kilometer wide where it touches the ground.
Tornadoes develop inside a low pressure area that has high winds. The center of the vortex (something that resembles a whirlpool) of the tornado is a very low pressure area. As more air comes in, the pressure lowers, which cools the air down.
The funnel speed is usually estimated at a little more than three hundred miles per hour. Scientists have estimated that a few extremely strong storms have had speeds at up to five hundred miles per hour.
Tornadoes can make a lot of destruction and wipe out entire cities!
These natural phenomenous are a small sample of what nature is capable!

By:Tina

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