A brief but powerful storm Friday morning left about 38,500 customers without electricity, with the hardest area hit being the city of Chicago.
"As of noon, we have 38,500 customers without power due to the storm that rolled in this morning," ComEd spokesman Antonio Hernandez said.
The breakdown, according to Hernandez:
"We have 359 crews deployed," Hernandez said. "We are working to restore these outages just as quickly and safely as possible."
Hernandez said a time-frame for restoration was not immediately available.