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Hail Storm PowerPoint Presentation

Hail Storm

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Hail Storm

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  1. Hail Storm KierraM LaShai S Josephine O

  2. Formation of hail storms • Water droplets freeze into an ice nucleus • The faster the updraft on the ice balls the bigger they grow

  3. 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.

  4. Conditionsof hail Hail balls as big as grapefruit Hailstorm very lightly

  5. 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.

  6. 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

  7. 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

  8. Types • Hail sized varies as from .50inches to 4.50inches on average. Quarter Marble Walnut Grapefruit Softball