Hurricanes are driven by warm moist air and evaporation from warm water. You get more of that in the summer.
2006-12-30 16:10:09
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answer #1
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answered by Anonymous
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Hurricanes form when water temperatures are warm enough to allow for uniform evaporation from the surface of the ocean - water surface - and begin to rise creating convection. Convective activity then excellerates with the heat-dreiven clusters of showers and thunderstorms organize.
There are two other conditions that must exist before hurricanes form. The air above - aloft - must be calm or near calm to prevent the thunderstorm tops from being "blown off" and slowing organized development. The other is an absence any nearby land masses or land in general. This must begin OVER a warm, fairly moist atmosphere.
The season is not much of a difference - but typically conditons on either side of the Equater or the Intertropical Convergence Zone - is best when Summer is in season and the temperatures are warmest.
For most situations the water temperatures must be between 80 and 90 degrees F and the air temperatures must be between 80 and 95 degrees F. The warmer both are, the better the conditons and the stronger the storm.
For more information on Hurricanes and their conditions, visit the sources below.
2006-12-31 21:54:52
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answer #2
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answered by Brian R Cross 3
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Tropical revolving storms are called hurricanes in the Atlantic and eastern Pacific oceans; typhoons in the South China Sea; and tropical cyclones in the south Pacific and Indian Oceans. The requirements for their formation are the same:
1. A Sea Surface Temperature in excess of 26°C. It is the water vapour evaporating off the warm sea that rises, condenses into cloud and provides the fuel for the hurricane in the form of latent heat.
2. A pre-existing low pressure system. This is the monsoon or equatorial trough which moves north and south of the equator with the apparent movement of the sun.
3. More than 5° from the equator. The Coriolis effect is zero at the equator and does nt provide enough turning force to get the system going until you are more than 5° away.
The required sea surface temperatures only occur in summer as does the position of the equatorial trough. This apples to both the northern and southern hemispheres. When there are tropical cyclones in Australia during the summer there, you don't get hurricanes in the Caribbean.
2007-01-01 07:27:43
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answer #3
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answered by tentofield 7
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All I know is the storms come off Africa and across the Atlantic. Some build in the middle of the ocean and go north. Why? But I do know when they hit shallower water that is warmer, they intensify and build, especially if they are not moving fast. Once the waters cool, they can't build and so here, Texas, the season ends Oct 31. The water is hottest in September which is our worst month for hurricanes.
2006-12-31 05:00:30
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answer #4
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answered by towanda 7
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Yea hurricanes form when warm water from the equator meets cold polar air. Usually during the summer time more warm water is available, and so more hurricanes form.
2006-12-31 00:11:29
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answer #5
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answered by PIX 4
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