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Ice Storms

Ice Storms. By Brandon Mitchell Tyler Luginsland Logan Woolley. How it Forms. Ice Storms are formed when a warm layer is between two cold layers. When precipitation falls, it melts the ice, but its still below freezing. This is supercooled rain. Ways to know its an Ice Storm.

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Ice Storms

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  1. Ice Storms By Brandon Mitchell Tyler Luginsland Logan Woolley

  2. How it Forms • Ice Storms are formed when a warm layer is between two cold layers. • When precipitation falls, it melts the ice, but its still below freezing. • This is supercooled rain.

  3. Ways to know its an Ice Storm • Has to be ½ inch of ice accumulation or more. • Starts out as winter weather advisory. • Then it turns into an Ice Storm warning. • If it gets less than ½ of an inch, Its just a freezing rain advisory.

  4. How to Prepare For an Ice Storm • Know where to find extra blankets. • Keep a supply of food. • Keep faucet slightly on so it doesn’t freeze up.

  5. Glaze ice • Very Clear. • Forms when freezing occurs relatively slowly. • Tends to be harder and more dense than Rime ice.

  6. Rime ice • Forms when freezing occurs rapidly. • Typically white or milky. • Basically made of discreet granules.

  7. Ice Storm of 1994 • Caused $1,000,000,000 in damages. • Took place in Alabama, Tennessee, and Mississippi. • Had freezing rain accumulations of 3-6 inches.

  8. Most Dangerous Ice Storms • March 1991: A major ice storm in NY caused $375 million in damages. • January 1961: Struck Idaho with an ice accumulation at 8 inches.

  9. Facts about Ice Storms • Referred to as glaze storms. • Common in valleys and foothills. • According to most meteorologists, a quarter of an inch of ice accumulation can add 500 pounds or weight per line span

  10. http://www.youtube.com/watch?v=0-cPpoS0dAs&safe=active

  11. Questions • True or False: When driving in an ice storm, you get more traction. • True or False: Water weighs more than ice. • True or False: Ice storms most often occur in December or January.

  12. Questions • True or False: It is okay to drive during an ice storm.

  13. Questions • What’s Rime Ice? A)Black ice B)Clear ice C)White or milky ice D)All or the above

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