What is a Huricane?

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In this paper I will talk about what is a hurricane. How they are formed. What time of the year they happen. Inform the reader on the different categories that a hurricane have. Also I will inform about the major hurricanes that happened in the United States.
A hurricane or a tropical cyclone is an intense, rotating oceanic weather system that possesses maximum sustained winds exceeding 119 km/hr (74 mph). It forms and intensifies over tropical oceanic regions. Hurricanes are generally smaller than storms in mid-latitudes, typically about 500 km (311 miles) in diameter. At the ocean’s surface, the air spirals inward in a counterclockwise direction. This cyclonic circulation becomes weaker with height, eventually turning into clockwise outflow near the top of the storm. Hurricanes gather heat and energy through contact with warm ocean waters. Evaporation from the seawater increases their power. Hurricanes rotate in a counter-clockwise direction around an "eye." The center of the storm or "eye" is the calmest part. It has only light winds and fair weather. When they come onto land, the heavy rain, strong winds and large waves can damage buildings, trees and cars. Hurricane season is from June 1st to November 30th.
Hurricanes form in tropical regions. They form there because they need warm water of at least 80º Fahrenheit, high humidity with moist air, light winds, and very warm surface temperatures. Summer and the early fall months are perfect for hurricanes to brew up in the oceans around us. Most of the Atlantic hurricanes brew up on the coast of Africa. For that the northern hemisphere hurricane season is considered through the months of June and November.
The first sign of a hurricane is a cluster of thunderstorms over tropic...

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...f the strongest storms to impact the coast of the United States during the last 100 years. With sustained winds during landfall of 125 mph (110 kts) (a strong category 3 hurricane on the Saffir-Simpson scale) and minimum central pressure the third lowest on record at landfall (920 mb), Katrina caused widespread devastation along the central Gulf Coast states of the US. Cities such as New Orleans, LA, Mobile, AL, and Gulfport, MS bore the brunt of Katrina's force and will need weeks and months of recovery efforts to restore normality. Hurricane Katrina developed initially as a tropical depression (TD #12 of the season) in the southeastern Bahamas on August 23rd. This tropical depression strengthened into Tropical Storm Katrina the next day. It then moved slowly along a northwesterly then westerly track through the Bahamas, increasing in strength during this time.

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