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Hailstorms

Online 20.2: Hail Probablilities

Probability of Severe Hail (Diameter of at Least 3/4 in):
The animation of the percent probability of severe hail (diameters of at least 3/4 inch) shows that most states east of the Rocky Mountains experience large, damaging hail with the exception of the extreme northeast. Probabilities are based on hail occurring within 25 miles of a point on a particular day. Note that severe hail is most common in the Southern Plains.

Department of Atmospheric Sciences Severe and Hazardous Weather at Department of Atmospheric Sciences University of Illinois