Weather and Disasters

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Weather and Disasters
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Weather is

• The condition of the atmosphere at a particular
  location and time

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Causes of Weather

• Water vapor
• Cloud cover
• Landforms and bodies of water
• Elevation
• Air movement

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Precipitation

• Definition falling of water droplets in the form
  of rain, sleet, snow or hail
• Three Types(Diagram in your book on pg 50)
• 1- convectional
• 2- Orographic
• 3- Frontal

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Extreme Weather

• Hurricanes
• AKA Typhoons, Tropical Cyclones, Willy-willies,
  Baguios, Chubascos
• Tornadoes
• Blizzards (heavy snowstorm)
• Droughts (long period without rain)
• Floods (too much water)

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Hurricanes
http//video.google.com/videoplay?docid5954521938
928173924qhurricanekatrinahlen
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Hurricane Formation

• Ocean warms up to 80 degrees Fahrenheit (Tropic
  of Cancer for
• N. Hemisphere)
• 2. Convection Current creates clouds and releases
  energy
• 3. Spinning of the earth spins the storm

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The Saffir-Simpson Hurricane Scale

• How Hurricanes are measured (like the Richter
  scale for earthquakes)
• http//www.nhc.noaa.gov/aboutsshs.shtml

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Hurricane Katrina and the Five Themeswww.cnn.com

• Movement
• Region
• Location
• Interaction
• Place

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Hurricane Season is here

• www.weatherchannel.com