Monday, May 23, 2011

how do hurricanes form?

To start off the water temperature must be at least 80 degree's Fahrenheit and at least 150 feet deep. Then a disturbance happens in the atmosphere developing into an area of low atmospheric pressure. Then winds begin to move into the middle of the storm, then warm water heats the air, and it rises as it nears the center.




The ocean feeds warmth and moisture into the developing storm, providing energy that causes the warm air in the center to rise faster. It condenses high in the atmosphere, creating thunderstorms.If conditions are favorable, a tropical depression develops into a tropical storm, then finally into a hurricane, which is not unlike a giant swirling mass of thunderstorms.




As rising air in the storm's center condenses, it produces heat, forcing it to rise even faster. The air is pushed out the top -- much like smoke out the chimney of a fire -- and more air has to rush in at the surface to take its place. This kicks the ocean up more and, well, you can see that the storm essentially feeds on itself.
Formation can be throttled or thwarted by, among other things, strong winds aloft that shear off a storm's chimney.


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