Hail Shaft: Hail Streak. 10. Tstorms: Hail: One of the largest hailstone fell in Nebraska in 1928. It was 17 inches around & weighed 1.5 lbs. 11. Tstorms: Hail Size: Gulfball. Baseball. Grapefruit. 12. Tstorms: Hail size: Pea, 1/4 in. Marble 1/2 in.
This occurs as a result of the radar beam hitting a hail shaft (usually containing hail of greater than 1 inch in diameter). The hail shaft causes the radar beam to be reflected to the ground.
See also: Meteor, Rain, Relative Humidity, Tornado, Front
 
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