13 years ago today, portions of the Cedar Valley were pummeled with giant hail stones --- baseball AND softball-sized. The National Weather Service in Des Moines shared a photo of one of the 4" hailstones. (Below)

Janesville and Cedar Falls both reported hailstones measuring 4.25" -- as big as a grapefruit. New Hartford saw baseball-sized hail.


KEEP READING: What to do after a tornado strikes


More From K92.3