1. HAIL STORMS
HAIL STORMS
By Danielle Frost and
Rachel Schwimmer

2. Hail Vocab Before We Start
Hailstorm = storm consisting of hail
Hail = type of precipitation, balls of ice, type of snow
Hailstone = individual falling hail

3. How are hailstorms produced?
From thunderstorms
Stronger updraft = larger hail
Go through areas of different temp. and humidity = different types of ice build onto them
Stones grow in same cloud

4. Where and When? Common in mid-latitudes
Can happen anywhere in U.S.  mostly SE. Wyoming, W. Nebraska, & E. Colorado
Around the world: Argentina, N. Italy, Kenya, S. Africa, Caucasus Region
Localized events
Spring, summer, fall months
This map shows the number of days hail is observed. There is not a lot near Florida, but there is in the Great Plains area.

5. Hailstone Sizes Mostly smaller than an inch Normally pea sized
Risky when it becomes golf ball and orange size
Largest one = 2.25 lbs. in Bangladesh 1986

6. What damage can they cause?
Damage = greater with stronger winds
Severe thunderstorm warning  you, homes, property, pets
Vehicles, windows, roofs, dent airplanes

7. How do they relate to severe weather?
Hailstones fall at at least 22 mph, can fall to 100 mph
Hail = most destructive form of precipitation
1888 storm killed 250 people

8. Marble Question! How does the layering affect of a hailstone happen?
You have 40 seconds!

9. Thank you for listening!
The End
Thank you for listening!