Tuesday, March 9, 2010

Tornadoes by Lee Ian Ee

A tornado is a violently rotating column of air that extends from a thunderstorm to the ground. Tornadoes can completely destroy buildings, uproot trees and hurl objects through the air like deadly missiles.

Tornadoes occur when a warm, humid air mass collides with a cool, dry air mass. This collision sometimes results in a powerful, swirling column of air. The swirling winds can reach a speed of 480kph. They are very strong and cause a lot of damage. In 1925, on 18 of March, a devastating tornado killed 695 people.

Sadly, we cannot stop tornadoes. But many countries have government weather services that look out for tornadoes and issue warnings to the people through television or siren. As a result, many lives are saved.
This is what you should do if you see a tornado coming. If you see a tornado coming, take cover immediately. Do not try to out-run it. You never know which way the tornado will turn and you may end up running right into it. Run to a building or lie flat in a ditch with hands covering your head. Stay under there until the tornado passes by.

This is how a tornado looks like.






This is how much damage a tornado can do.



A tornado forming.







When a cool, dry air collides with a warm, humid air, a tornado is formed.




This is a scale to group a tornado under a category.

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