Brief Overview

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• Brief Overview
• Of
• Hurricanes

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Use the provided pamphlets and answer the
following questions
1. What provides the energy for a hurricane?
What happens to the strength of a hurricane as it
moves over land? 2. Describe the steps that
take place during the life of a typical
hurricane. (page 6) 3. How are hurricanes
named? (pages 1-2) 4. What is the name of the
scale to categorize hurricanes? How many
categories does it contain? (page 2)
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A. How do hurricanes form?
B. How are hurricanes named?
C. What do you remember about Hurricane Katrina
of 2005?
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A. How do hurricanes form?

• A hurricane forms when two opposing winds meet
  and begin to swirl over tropical oceans, usually
  between 5 and 20 north latitude. Around the
  middle of the low pressure area, warm, moist air,
  is forced aloft. As this air rises, it cools and
  condenses. The storm then becomes a large,
  swirling, low pressure system.

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Hurricane Names Selected for the Atlantic Basin
Taken from http//www.nhc.noaa.gov/aboutnames.sh
tml
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Greek Alphabet
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Taken from http//www.nhc.noaa.gov/aboutnames.sh
tml
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• Naming of Hurricanes
• In 1953, the U.S. Weather Bureau officially
  started naming hurricanes after women--they were
  easy to pronounce, easy to remember, and were
  less likely to cause confusion than other
  methods.
• In the late 1970s, mens names, as well as
  Hawaiian and Spanish names, were added.
• Now alphabetical lists alternating male and
  female names are used (starting with A through
  W).
• There are separate sets of names for hurricanes
  in the North Atlantic and for typhoons in the
  Pacific.
• The lists of names for North Atlantic hurricanes
  are repeated every six years if a hurricane has
  been especially deadly or damaging, its name is
  removed from the list.

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Hurricane

• Katrina

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