Boone County Supercell July 13

Yesterday, this storm in Boone County, IL damaged trees and power lines, and produced golf ball size hail near Poplar Grove, IL:

There was also a weaker cell to its south:

And this one to its southwest:

We were driving north on I-39 just north of US 34 at the beginning of the video below. At that time the storm was probably 50 miles away. The video runs from 8:46 - 9:12 PM CDT as we go through LaSalle, Lee and Ogle counties.

Here is the storm from up close. We are driving east on 173 between I-39 and 76 from 9:37-9:41 PM CDT.