Samantha Grevas History/Political Science College of Arts and
Sciences
Slide 3
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
Slide 4
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 23
rd, 2010. It measured 8.0 inches in diameter and weighed an amazing
1.94 pounds, also breaking the record for heaviest weight.
Slide 5
What is a Hailstorm? How are hailstones formed? How costly can
hailstorms really be? What is done to prevent hailstone
damage?
Slide 6
What is a hailstorm? Severe weather event Hard chunks of ice
from cumulonimbus cloud formations Billions in damage to property,
agriculture, and etc.
Slide 7
How are hailstones formed?
Slide 8
Slide 9
How costly can hailstorms really be?
Slide 10
Slide 11
$1,245.49 $75.04 How costly can hailstorms really be? 2,641,060
120,048
Slide 12
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?
Slide 13
Costliest natural disaster in Australias history was a
hailstorm April 14 th, 1999 500,000 tonnes of hailstones Total
damage 2.3 billion dollars How costly can hailstorms really
be?
Slide 14
What is done to prevent hailstone damage? The Worlds Only
System of Automobile Protection Inflatable protective covering for
automobiles Remote control for inflation Text/Email hail
warnings
Slide 15
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?
Slide 16
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
Slide 17
Dangerous severe weather event Caused by updraft thunderstorm
winds Silly car balloons House upgrades Not being this guy:
Billions of dollars of damage Loss of human life