Tahlia-++U.S+Hurricanes

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**What is a hurricane**? A severe tropical storm usually with very heavy rains, and high winds. Hurricanes are referred to by different names depending on where they occur in the world. They are called hurricanes when they occur over the North Atlantic ocean, Caribbean sea, Gulf of Mexico or the North East Pacific ocean. They are called typhoons when they occur over the North west Pacific ocean. In Australia and the Indian ocean they are known as tropical cyclones.
 * Physical features of a hurricane: **[[image:http://static.squidoo.com/resize/squidoo_images/-1/draft_lens2086085module10588375photo_1216837465Hurricane_formation.gif width="320" height="395" align="right"]]
 * 1) The ocean water is 27 degrees, or over.
 * 2) The water changes into vapour.
 * 3) This vapour becomes colder and turns into a cloud.
 * 4) As the warm air rises it creates an area of low air pressure.
 * 5) The area of low pressure sucks in warm air.
 * 6) Then the cloud begins to suck up cold air from above. The earth’s rotation causes the air to blow in on angle, which forces the cloud to spin around.
 * 7) The more vapour that a hurricane sucks in, the bigger and more powerful it becomes.



The winds of the hurricane blow around the centre of it, which is called the eye. The eye of the hurricane is a clam zone. The dark clouds that surround the eye are called the eye wall. The eye can usually between 16-64km in diameter. There is no rain, or dark clouds in it. When large changes of pressure occur in the eyewall, the hurricane's largest winds are formed. Sometimes these winds reach up to 320km an hour. Hurricanes are most common during summer.

**How have people responded to hurricanes, and how do they prepare for them?** 1. You need to make sure you have enough food incase of the event of a hurricane. Having a food suply is a pretty good idea. 2.Securing your home: Board up your windows ot install shutters, as they'll minimize the damage to your window. Power may be lost so it's a good idea to have foods that you don't need electricity to cook with. Check trees or plants in your garden. Cut of large branches that could damage your home if they fall. Secure things that can blow lose away. eg. Garbage bins, tools, furniture etc. 4.During the storm: Do not use electrical appliances, however monitor a radio for tv to be updated on the weather details. Find a safe area in your home that is away form any windows. Do not go outside! Make sure you have official word before you get out of the house.



**What are the causes of a hurricane human/ or natural**: There two main things that start a hurricane. Warm waters, and moisture. Some scientists believe that humanss have contributed to the risk of hurricanes occuring. They think that because humans have already contributed to global warming, which is has increased the water and air temperatures around the world it has made it easier for a hurricane to occur and to become more destructive as warmer waters and air are what they need.

Catastrophes Naturelles, 2009, __Natural Disasters__ ,viewed 21st March, 2010, < **http://www.ac-nancy-metz.fr/enseign/anglais/Henry/geocata.htm**> **-**
 * __Bibliography.....__**

St Petersburg times, C 1999, __How to prepare for a hurricane__, viewed 18th march 2010, <**http://www2.sptimes.com/weather/SP.1.html****>** 

NASA B, Dunbar, 2007, __Hurricane__, viewed 20th march 2010 & 21st March 2010, <[|**http://www.nasa.gov/worldbook/hurricane_worldbook.html**]**>**  

Enchanted learning.com, C 2004- 2009, __Label the hurricane diagram__, viwed 21st march 2010, < **[]>**

__ [|**http://www.google.com.au/search?hl=en&safe=off&rlz=1R2ADRA_enAU342&defl=en&q=define:hurricane&ei=mnWlS5q0JYGusgObl9Ei&sa=X&oi=glossary_definition&ct=title&ved=0CAYQkAE**] __ viewed 19th March, 2010. **__ http://gbic.tamug.edu/gbeppubs/6/gdnep6_163-167.pdf __ viewed 18th march, 2010.**

Gardiner, L, 2007, __Hurricane damage,__ viewed 18th March 2010, < http://www.windows.ucar.edu/tour/link=/earth/Atmosphere/hurricane/damage.html&edu=high>

Hurricanefacts.com, __Fast hurricane facts__, viewed 21st March 2010, <[]>

Viewed 21st March, 2010, <[]> Viewed 21st March, 2010, <[]>

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**Interesting** **Hurrican facts:** Hurricanes have both male and female names. However at one point only female names were used. A lot of hurricanes rage harmlessly in the ocean. Some Australians call hurricanes Willy- willies.

 and businesses. A hurricane can also cause a lot of damage to a family, or someone’s life, just like hurricane Katrina did. Many people were evacuated, some just had to pick up and leave and many were killed.
 * How are people affected by a hurricane? ** Sometimes hurricanes can be extremely dangerous, and other times they can just be a bad thunderstorm. Hurricanes can cause extensive damage to homes, buildings

 How is the natural environment affected by a hurricane? <span style="font-family: 'Century Gothic','sans-serif';"> A hurricane can cause a lot of damage to the natural environment. Because hurricanes usually occur in tropical areas along the coast, there is a lot of damgage caused by them to the coastal environment. Sand on beaches can be eroded( worn away), many low lying areas experience flooding because of the strom surge, the high winds and flooding can cause damage to forests, or even destroy them. Sometimes the hurricane may move inland, though it is weakened the heavy rains can cause flooding and even mudslides.

Hurricanes are quite amazing storms. They're powerful and strong and they can cause a lot of damage.




 * By Tahlia 8A.....**