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Thanks For Watching

The tornado which struck on April 26, 1998, was the worst one in Bangladesh's history. It killed 1,300 people which made it the most devastating tornado in history, but the actual strength of the tornado is unknown. As previously stated, the houses were poorly built. Which resulted in more deaths and injuries. The tornado traveled for about 50 miles, the base being about a mile across. It destroyed the houses of residents in Saturia and Daulatpur.

Bangladesh is a place where tornadoes occur every 5-6 years. this due to the fact that cold air travels down from the Himalayas and meets the warm Bangladesh air, easily starting tornadoes. Even though Bangladesh is hit by tornadoes so often, the houses which reside in it are not well built. A strong gust of wind could topple a house, trapping or killing the residents inside. That is part of the reason there was such a high number of deaths in the tornado.

Daulatpur-Saturia, Bangladesh Tornado

The tornado occurred in the Manikganji district on April 29, 1989. It killed 1,300 people, and left 80,000 people homeless. 12,000 people were injured that day, within the 1-1.5 hours that the tornado lasted. It was the worst tornado Bangladesh, and the rest of the world has ever seen (death-wise).

Daulatpur-Saturia, Bangladesh Tornado

Speeds

A tornado can travel from 30 miles an hour to 70. With winds that can travel up to 350 miles per hour, it picks up most things that get in it's path from cows to trees. The area at the bottom of some tornadoes is only about 300 feet across. The average tornado only stays on the ground for a minute, which is much shorter and smaller then a hurricane. However, some tornadoes stay on the ground for over an hour and travels for 100 miles. The fujita scale, is a way to measure the strength of a tornado. The faster the winds, the stronger the tornado. It is the 3rd largest cause of weather related deaths in the USA.

Waterspouts are a kind of tornado formed over a body of water. Waterspouts, are small tornadoes which form from cumuliform clouds.Waterspouts are allot smaller then tornadoes. They normally aren't super-cell tornadoes (having more then one tornado form from the same cloud). A waterspout looks like the water is being sucked up by the mini-tornado, but it is not true, that actually is the moisture in the air condensing.

Tornadoes are created when cool air descends from a cumulonimbus or cumulus cloud and the warm air starts rising up to take the place of the cool air. As the winds start gathering speed as it goes up then down, it starts to blow in a circular motion. eventually the cloud is sucked into the whirling winds which allows the tornado to be seen. When the cloud touches the ground, or is right above the ground, that is when a tornado is technically started. When the tornado hasn't touched the ground,it is called a funnel cloud. In the USA, most tornadoes form from Feburary to November, and they usually form in the tornado ally, with 300 tornadoes per year.

Waterspouts

How Tornadoes are Formed

Tornado Facts

Bibliography

Tornado alert!

http://en.wikipedia.org/wiki/List_of_natural_disasters_by_death_toll

http://en.wikipedia.org/wiki/Daulatpur-Saturia_Tornado

http://www.openzine.com/aspx/zine.aspx?IssueID=4935

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