This past Sunday (aka, May 16), a devastating hail storm hit Oklahoma City. Hail as large as softballs pounded the area in what may go down as the costliest and most damaging hail storm in Oklahoma City history. Thousands of cars and homes were damaged, with many windows and roofs completely destroyed.
Here's a video taken during the hail storm. If you wait for the 1-minute mark, you'll see just how vicious the falling ice becomes.