What is a hurricane?

Question

I need an explanation.
I'm confused. What exactly is it?

Answer 1

A hurricane is a huge storm! It can be up to 600 miles across and have strong winds spiraling inward and upward at speeds of 75 to 200 mph. Each hurricane usually lasts for over a week, moving 10-20 miles per hour over the open ocean. 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.

Answer 2

Dear Ali - A good question and here is the scientific answer you have been looking for. What we first see in the development of such storms are large unorganized areas of convective clouds which I have termed Convective Cloud Clusters. These are the incipient areas of storm development. The first thing we need to see for a storm to become organized is surface temperatures of at least 28C. As clouds then begin to grow over this warm water, water vapor is condensed due to the lower pressure aloft and this releases a considerable amount of heat energy into the atmosphere and as long as there is no mechanism aloft such as strong shear which can remove this heat, the surface pressure will begin to drop. At this point another very important ingredient is necessary and that is southwesterly winds to the south of the cloud cluster which is embedded in the trade winds (easterlies). This wind structure leads to a counterclockwise or cyclonic circulation which brings surface air filled with water vapor spiraling toward a developing center of low pressure and circulation. This air then is forced to rise in the convective clouds and further supports the development of low pressure. Soon the cluster becomes a tropical depression, the first real stage in tropical storm life cycle. It is numbered at this point and aircraft flights are made into the depression for close up measurements by dropsonde instruments to record temperature and pressure down to the surface. The initial discovery of the storm is generally done through satellite data interpretation, but satellite data will be closely monitored throughout the life cycle of this storm. As the storm develops it next becomes a tropical cyclone and is now given a name. It may also develop an eye (about 25% do at this point in their history). The final stage of the storm is the hurricane. Throughout the life of this storm water vapor is "the" source of energy that is crucial to its life cycle so that when the storm finally moves over land and that energy source is cut off, the storm immediately begins to dissipate. The major damage from hurricanes is the surge or wall of water which precedes the arrival of the storm. This causes flooding especially if it coincides with high tides. Secondly there are high winds of course which generate flying objects. There are also severe thunderstorms with lightning and quite possibly a tornado. You should always listen to the authorities and evacuate if requested or ordered to. It is a good policy to be as far away from an arriving hurricane as possible. Hope this helps and if not then let me know.

Answer 3

The easiest way to explain a hurricane is to say that it is a tornado over the water. It has the same make up of a tornado, BUT is formed over water and therefore causes additional damage due to the water involved.

Answer 4

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Answer 5

Is a violent storm with very strong winds, which do occure mostly in the western Atlantic Ocean.

Answer 6

hur·ri·cane –noun 1. a violent, tropical, cyclonic storm of the western North Atlantic, having wind speeds of or in excess of 72 mph (32 m/sec).

Answer 7

I powerful Low Pressure system formed in the tropics.

Answer 8

A strong wind

Answer 9

A power windstorm with lots of wind and rain.

Answer 10

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