1. Costly Hailstorms Samantha Grevas History/Political Science
College of Arts and Sciences
Costly Hailstorms

2. Pop Quiz
Which of the following official sports balls is closest in diameter to the largest recorded hailstone in the United States?
Golf Ball
1.68 Inches
Tennis Ball
2.7 Inches
Softball
3.82 Inches
Volleyball
8.15 Inches
Basketball
9.4 Inches

3. Pop Quiz
Which of the following official sports balls is closest in diameter to the largest recorded hailstone in the United States?
Golf Ball
1.68 Inches
Tennis Ball
2.7 Inches
Softball
3.82 Inches
Volleyball
8.15 Inches
Basketball
9.4 Inches
The largest recorded hailstone in United States history fell in South Dakota on July 23rd, It measured 8.0 inches in diameter and weighed an amazing 1.94 pounds, also breaking the record for heaviest weight.

4. Overview What is a Hailstorm? How are hailstones formed?
How “costly” can hailstorms really be?
What is done to prevent hailstone damage?

5. What is it? Severe weather event
Hard chunks of ice from cumulonimbus cloud formations
Billions in damage to property, agriculture, and etc.
What is a hailstorm?

6. Hail Formation
How are hailstones formed?

7. “Hail Alley” and Country Wide Hail Occurrence
How are hailstones formed?

8. Damage? What kind of damage?
How “costly” can hailstorms really be?

9. Hail Damage Photos
How “costly” can hailstorms really be?

10. U.S. Hail Damage Statistics (2013)
2,641,060
$1,245.49
$75.04
120,048
How “costly” can hailstorms really be?

11. Deadliest Hailstorms – Deccan Plateau
Northern India/Bangladesh
Home to the largest hailstones in the world (2.25lbs)
April 14, 1986 – 92 people died
How “costly” can hailstorms really be?

12. Costliest Natural Disaster – Australia
Costliest natural disaster in Australia’s history was a hailstorm
April 14th, 1999
500,000 tonnes of hailstones
Total damage 2.3 billion dollars
How “costly” can hailstorms really be?

13. “The World’s Only System of Automobile Protection”
“Hail Protector”
“The World’s Only System of Automobile Protection”
Inflatable protective covering for automobiles
Remote control for inflation
Text/ hail warnings
What is done to prevent hailstone damage?

14. Home and Property High Impact Roof Coverings
Underwriters Laboratories rating system – 4 protects against 2.0 inch steel ball
Roof slope of approximately 27 degrees also helps prevent damage
What is done to prevent hailstone damage?

15. Protecting Yourself Stay indoors
If driving, take shelter (not under a tree)
Use plywood or tarps to cover windows/doors to prevent bodily injury from broken glass
What is done to prevent hailstone damage?

16. Hail is… Results in… Can be prevented by… Review
Dangerous severe weather event
Caused by updraft thunderstorm winds
Results in…
Billions of dollars of damage
Loss of human life
Can be prevented by…
Silly car balloons
House upgrades
Not being this guy:

18. Content Sources http://www.crh.noaa.gov/abr/?n=stormdamagetemplate

19. Image Sources