10 Hurricane Facts You Might Not Know!
1)A hurricane is a large rotating storm with high speed winds that forms over warm waters in tropical areas. Hurricanes have sustained winds of at least 74 miles per hour and an area of low air pressure in the center called the eye.
2)Hurricanes form over warm ocean waters near the equator. The warm, moist air above the ocean surface rises, causing air from surrounding areas to be “sucked” in. This “new” air then becomes warm and moist, and rises, too, beginning a continuous cycle that forms clouds. The clouds then rotate with the spin of the Earth. If there is enough warm water to feed the storm, a hurricane formsBook Online Book Online
3)Hurricanes rotate around a circular centre called the “eye“, where it is generally calm with no clouds. Surrounding the eye is the eye wall – the most dangerous part of the hurricane with the strongest winds, thickest clouds and heaviest rain!
4)Most hurricanes occur harmlessly out at sea. However, when they move towards land they can be incredibly dangerous and cause serious damage.
5)The strong spiraling winds of a hurricane can reach speeds of up to 320kmph – strong enough to rip up entire trees and destroy buildings!
6)In the southern hemisphere, hurricanes rotate in a clockwise direction, and in the northern hemisphere they rotate in an anti-clockwise direction. This is due to what’s called the Coriolis Force, produced by the Earth’s rotation.
7)When a hurricane reaches land it often produces a “storm surge“. This is when the high winds drive the sea toward the shore, causing water levels to rise and creating large crashing waves. Storm surges can reach 6m high and extend to over 150km!
8)Hurricanes are also called cyclones and typhoons, depending on where they occur. In the Atlantic Ocean and Northwest Pacific they are hurricanes, in the Northwest Pacific they are typhoons and in the South Pacific and Indian Ocean they are cyclones.
9) The largest hurricane on record is Typhoon Tip, which occurred in 1979 in the northwest Pacific. With a diameter of around 2,220km, it was nearly half the size of the United States!
10) Hurricanes are given names by the World Meteorological Organization (WMO) so that they can be distinguished. Each year, tropical storms are named in alphabetical order according to a list produced by the WMO. That name stays with the storm if it develops into a hurricane. The names can only be repeated after six years.(561) 391-3550
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