Estimating Hail Size

Tropical Storm Imelda Forms; Another Round of Heavy Rain and Potential Flooding in the Southwest

Tropical Storm Imelda has formed near the Bahamas Sunday afternoon, and continues to bring heavy rainfall. The risk of significant wind impacts from Imelda along the Southeast coast are decreasing. Another round of showers and storms with a heavy rain and flash flood threat will continue in the Southwest through Monday morning. Read More >

Hail Diameter Size (Inches)	Description
1/4	Pea Size
1/2	Mothball, peanut, USB Plug
3/4	Penny Size
7/8	Nickel Size
1	Quarter Size
1 1/4	Half Dollar Size
1 1/2	Ping Pong Ball Size
1 3/4	Golf Ball Size
2	Lime or medium sized Hen Egg
2 1/2	Tennis Ball Size
2 3/4	Baseball Size
3	Large Apple
4	Softball
4 1/2	Grapefruit
> 4 1/2	Probably a record sized hailstone for Idaho or Oregon Freeze it, Measure it, Notify the NWS.