hail storm kierra m lashai s josephine o. formation of hail storms water droplets freeze into an ice...
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Hail Storm
Kierra MLaShai S
Josephine O
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Formation of hail storms
• Water droplets freeze into an ice nucleus
• The faster the updraft on the ice balls the bigger they grow
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Cause of hail storm
• Raindrops lift up into the atmosphere during a thunderstorm super cooled by temperatures below freezing.
• The size of hail can be as small as a pea or as big as a grapefruit.
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Conditionsof hail
Hailstorm very lightly
Hail balls as big as grapefruit
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Temperature of hailstorms to occur
• Hail growth becomes invisibly small once the air temperature falls below -22 degrees Fahrenheit. The damage at a particular location depends on the frequency and severity intensity of hail fall.
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Risks of hailstorms
• Nine people were killed do to a 20 minute hail storm in southern India causing devastating financial implications for residents.
Damages the roof and crops
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History: FUN FACTS
• The deadliest hail storm of SAN MACROS, TEXAS was on April 21st, 2006. The average size of hail were not less than 10cm.
• ARUORA, NEBRASKA faced seven inches of hail size which was one of the largest hailstones recorded in history. 7inches in diameter and 18.75inches in circumference.
http://www.youtube.com/watch?v=Q4RszUIXXTA&safe=active
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Types
• Hail sized varies as from .50inches to 4.50inches on average.
Quarter MarbleWalnut Grapefruit Softball