In Joliet, lightning blew out a transformer and snapped a power line. That live wire landed in the wet grass. It sparked for nearly an hour before ComEd crews shutdown the electricity.
In Elgin, firefighters had to rescue a driver of a minivan who became trapped when a tree fell. Strong winds apparently knocked over the large tree along Route 31. It took out a live power line as it came down. The driver was not seriously hurt.
In rural Grundy County, pea-sized hail fell as the leading edge of the storm swept through.
At the height of the storm, 10,000 ComEd customers lost power.