Hurricanes

How They Happen How They Work Effects Bibliography

 

Introduction

A hurricane is a storm in the coastal regions, with violent winds of more than 74 miles per hour, that is accompanied by heavy rain, high tides and flooding.  Hurricanes have been hitting North America and South America for hundreds and hundreds of years.

A hurricane is steered by the Bermuda High, an area of winds in the middle of the Atlantic Ocean.  If the hurricane hits the western border of Europe or the eastern border of North America, then it was steered by the Bermuda High.  From this web page, you will learn how hurricanes happen, how they work and the effects of a hurricane.   

    

How they happen

Hurricanes need ample heat and moisture.  There must be warm layer of water at the top of the sea, with the surface temperature greater than eighty degrees Fahrenheit.  There are four stages in a hurricane:

1. Tropical disturbance

2. Tropical depression

3. Tropical storm
4. Hurricane

For a tropical storm there must be winds of 38 MPH.  For a hurricane there must be winds of 74 MPH.  

 

How they work

The Bermuda High has winds that turn clockwise and usually steer the storm.  A hurricane measures 200 to 500 miles across.  The eye of a hurricane measures from 14-25 miles across.  Hurricanes last 3-14 days.

 

Effects

As the hurricane moves close to the beach, the waves move with it.  When the storm hits the beach, it is called a storm surge, the most deadly effect of a hurricane.  Hurricane damage is from wind and water.

Hurricane winds can uproot trees and tear the roofs off houses.

 

 

Bibliography

 

Barnes, Gary.” Hurricane.” World Book. 2004.

 

Lauber, Patricia. Hurricanes: Earth’s Mightiest Storms. New York City: Scholastic Inc, 1996.

 

Lee, Sally. Hurricanes. Chicago: Franklin Watts, 1993.

 

 

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