Hailstone Sizes
Assorted Hailstones (Credit: NOAA Photo Library) US National Weather Service Hailstone Size Categories
HAIL DIAMETER SIZE (Inches) DESCRIPTION
1/4" Pea Size 1/2" Mothball or Marble Size 3/4" (Severe Criteria) Penny or Dime Size 7/8" Nickel Size 1" Quarter Size 1 1/4" Half Dollar Size 1 1/2" Walnut or Ping Pong Ball Size 1 3/4" Golf Ball Size 2" Hen Egg Size 2 1/2" Tennis Ball Size 2 3/4" Baseball Size 3" Teacup Size 4" Grapefruit Size 4 1/2" Softball Size
Scientist Nancy Knight holds Coffeyville, KS hailstone, diameter 14.4 cm (5.67 inches). Aggregate grapefruit-sizehailstone, diameter approx. 15 cm (6 inches).
Large hailstone approx. 10 cm (4 inches)
British Meteorological Office Hailstone Size Categories
HAIL DIAMETER SIZE (mm) DESCRIPTION
5 - 10 mm Pea.
11 - 15 mm Mothball, bean, hazelnut.
16 - 20 mm Marble, cherry, small grape.
21 - 30 mm Large marble, large grape, walnut.
31 - 45 mm Chestnut, pigeon's egg, golf-ball, table-tennis ball, squash ball.
46 - 60 mm Hen's egg, small peach, small apple, billiard ball.
61 - 80 mm Large peach, large apple, goose egg, small/medium orange,
81 - 100 mm Large orange, grapefruit, softball.
101 - 125 mm Melon.
over 125 mm Coconut, etc.
Learn More From These Relevant Books
Burt, Christopher C.: Extreme Weather: A Guide and Record Book Bluestein, Howard B.: Tornado Alley: Monster Storms of The Great Plains Williams, Jack: The Weather Book
Hailstone Sizes Keith C. Heidorn, PhD . All Rights Reserved.see@islandnet.com .For More Weather Doctor articles, go to our Site Map .
I have recently added many of my lifetime collection of photographs and art works to an on-line shop where you can purchase notecards, posters, and greeting cards, etc. of my best images.
Home |
Welcome |
What's New |
Site Map |
Glossary |
Weather Doctor Amazon Store |
Book Store |
Accolades |
Email Us
Amazon.com Widgets
