Hurricanes Kush Bhagat

What is a Hurricane?

A hurricane is a strong spinning storm that forms over an ocean and heads westward and towards the poles. The hurricane spins around a area in the center called the eye that is usually 16-64 km in diameter and has fair to cloudy weather. Clouds extend around the eye with the closest clouds, the eye wall being the tallest and most violent. When it strikes land it can cause extreme winds, rain, flooding, and waves.

How Do Hurricanes Form?

First there must be enough heat and moisture in the air and a layer of warm water on top of the ocean for a hurricane to form.

Next, the moisture condenses and as a byproduct gives of heat which is absorbed into the air. The hot air rises and leaves an area of low air pressure.

Finally, air moves towards the region of low pressure. But due to the earth's spin it causes the wind to travel clockwise around the region if it is located in the south hemisphere and counterclockwise in the north hemisphere. The opposite directions of wind if due to the Coriolis effect.

Where do Hurricanes come from?

Hurricanes mostly come from tropical oceans such as the Gulf of Mexico. They must be at least 5 degrees latitude from the equator for the Coriolis effect to work.

How much Damage Can a hurricane Create?

Hurricanes create flooding, high waves, torrential rain, and possible tornadoes. It can cause high death tolls and property damage. For example, Hurricane Katrina killed over 1,800 people and destroyed 80 billion dollars of property.

"Hurricanes are among the most destructive and expensive of all weather events."- The Gale Encyclopedia of Science

hat are other names for Hurricanes?

A hurricane is a tropical cyclone that crosses over the North Atlantic Ocean, Caribbean Sea, Gulf of Mexico, or Northeast Pacific Ocean. In this way a tropical cyclone is given a different name in each region. A tropical cyclone in the Northwest Pacific Ocean is called a typhoon. A tropical cyclone in the Southwest Pacific Ocean or North Indian Ocean is called a severe tropical cyclone. A tropical cyclone in the North Indian Ocean is called cyclonic storms. Finally, a tropical cyclone in the Southwest Indian Ocean is just a tropical cyclone.

What structure does a Hurricane have?

A rough cross-section view of a hurricane.

The middle section that you see is the eye and is the center of the hurricane. The two tall clouds touching the eye are called the eye wall and create the most damage in a hurricane. The overhead clouds are called the dense cirrus overcast and the smaller surrounding clouds at the bottom are called rainbands.

Citations:

  • Emanuel, Kerry A. "Hurricane." World Book Advanced. World Book, 2016. Web. 8 Dec. 2016.
  • Mike Trenchard. Hurricane Isabel from ISS. Digital image. Earth Observatory. NASA, 15 Sept. 2003. Web. 8 Dec. 2016.
  • Kerr, Bruce. Hurricane Winds Top Veiw. Digital image. Hurricane. World Book, n.d. Web. 8 Dec. 2016.
  • The COMET Program. Vertical slice through the center of a mature hurricane. Digital image. Hurricane Structure. Hurricanes: Science and Society, n.d. Web. 8 Dec. 2016.
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