1. Costly Hail Storms in the U.S.
Hail No
Costly Hail Storms in the U.S.
By: Sarah Arnold
Criminology and Political Science
College of Arts and Sciences

2. More Updraft  More Rings  Larger Hailstones
Hail Formation
More Updraft  More Rings  Larger Hailstones

3. Types of Hail Damage
Crop Damage
Automobile Damage
Building Damage

4. Factors that Affect Hail Damage
Hail Characteristics
the size of hailstones
number of hailstones that fall per unit area
strength of winds during a hail fall
Target Characteristics
Crop Characteristics
Property Characteristics

5. Property Damage by Hail Size
Quarter-size (1 inch)
Damage to shingles
Golf ball (1.75 inches)
Dents on Car
Baseball (2.75 inches)
Windshields smashed
Softball (4.5 inches)
Holes in roofs

6. Hail Storm Damage

9. Cold Mountain Updrafts
Hail Alley
Dry Warm Air
Moist Warm Air

10. Dallas Hailstorm: 3rd Costliest Hailstorm in U.S. History
5 May, 1995
Hail up to softball size
70 mph winds
Flash flooding

11. Total Cost of Damage:
$1.1 billion

12. St. Louis Hailstorm: 2nd costliest Hail storm in U.S. History
April 28, 2012
2 waves of supercell thunderstorms
Hail up to softball size
50-60 mph winds

13. Total Cost of Damage:
$1.6 billion

14. Kansas City Hail Storm: Costliest Hail Storm in U.S. History
April 10, 2001
Long-lived high-precipitation supercell thunderstorm
Winds over 70 mph
9 weak tornados

15. Total Cost of Damage:
$1.9 billion

16. Main Points Hail Formation Types of Hail Damage Trends
Crop Damage, Automobile Damage, Building Damage
Trends
Hail occurs most often in the Summer
Hail occurs most often in the great plains
The number of severe hail storms annually is increasing
Costliest Hail Storms in U.S. History
$1.1 billion: Dallas 1995
$1.6 billion: St. Louis 2012
$1.9 billion: Kansas City 2001

17. Hail News Awesomeness

18. Sources http://www.youtube.com/watch?v=zP_Kr6i7itM