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Explain where and why Hurricanes form and describe their main characteristics.

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Introduction

Explain where and why Hurricanes form and describe their main characteristics. Hurricanes, also known as Typhoons, Cyclones and Willy Willies, are extremely powerful low-pressure systems. They are natural Disasters that are responsible for a great number of deaths as they are virtually unstoppable. They are most recurrently generated over the Atlantic and Pacific Oceans and most common in autumn when ocean temperatures are at their highest. For a Hurricane to materialize, several basic conditions are compulsory. The location of the hurricane and where it operates is also important. Hurricanes will only form within 5? and about 20? North and South of the equator. Any closer and the hurricane will not form. This is because the hurricane relies on the Corriolis force to create the spinning motion characteristics. This force is not sufficient closer than 5? to the equator. Another Location in which a Hurricane will form is over warm oceans with surface temperatures in excess of 27?C and are as deep as 60m. This is because the hurricane requires warm waters as they offer large quantities of heat. ...read more.

Middle

These winds are responsible for flying debris, one of the greatest dangers during a hurricane. Air moves in a large, tightening spiral around the eye. This air is of extremely low pressure. In the Northern Hemisphere the wind circulation is counter clockwise, due to the corriolis force acting on the earth, and reaches maximum velocity in a circular band extending outward 20 to 30 miles from the rim of the eye. Near the eye winds may gust to more than 200 miles per hour (174 knots). Winds of 39 miles per hour (34 knots) and greater can extend 200 miles or more in all directions from the centre of the hurricane. The entire storm dominates the ocean surface and lower atmosphere over thousands of square miles. As well as strong winds in the hurricane, another common feature is heavy rainfall. This intense rainfall is due to the rapid cooling and rising of the air. The slower the hurricane travels the more rainfall there will be. Amounts of rainfall can exceed 500mm per day, which in contrast is a year's amount of precipitation in some areas of England. ...read more.

Conclusion

A vast lake was formed in the city centre of Tegucigalpa as the Rio Choluteca became swollen. Shantytowns also lied in ruin. The homeless count was 800,000, of the countries 5 million inhabitants. Crime rate increased (over 200people arrested in 1 day) and businesses were looted. Major route ways were also destroyed as 50 bridges on highways fell victim to the hurricane. Hundreds off small villages were entirely cut-off. The cost off food rocketed because of shortages. Hurricane Mitch had destroyed countries that relied on crops and agriculture for income. Up to 70% of Honduras's income had been lost. It was also estimated that productions costs in the area totalled $1.5bn (�903million). Over half these losses are in the agricultural sector. Many foods that are exported from Central America e.g. Bananas and coffee were also destroyed. Due to the extended and unpredictable path of hurricane Mitch, a much wider piece of the regions agriculture base in Central America was destroyed. This was unanticipated as hurricanes are usually associated with coastal areas. In all, hurricane Mitch had destroyed all leads of life in many of the Central American countries, notably Honduras and Nicaragua. HURRICANE ESSAY JAMES WARNES Page 1 4/30/2007 ...read more.

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