As of 4 p.m. Wednesday, ComEd says 2,500 customers remained without power, down from 24,000 earlier this morning.
Heavy lightning and thunder struck the south suburbs. And high-standing water made roads impassible on Chicago's Northwest Side. Deep water flooded the intersection of Ashland and Montrose.
Evanston and Glen Ellyn saw downed trees and tree limbs. One tree fell onto a garage in Evanston. A 300-year-old oak was felled in Glen Ellyn. One resident described the impact as a dump truck crashing with a full load.
"The tree, utility truck of some kind, were parked right under that branch, and it fell on one of them. Nobody was hurt. The truck wasn't hurt. Also wires didn't come down. We have no idea how lucky we all are," said Heidi McAndrew.
After blocking the roadway for awhile, Glen Ellyn authorities cleared the debris.
