Update 3:30 p.m.

Power could be out for days for some ComEd customers after a fast-moving severe thunderstorm ripped through the area Monday morning. 

ComEd told Patch on Monday morning it is still in its damage assessment stages and that it could take “multiple days” to restore power in the area.

“We have 450 crews that are currently working in the field to get customers restored,” the ComEd representative said.

In addition, ComEd says it may request help from neighboring utilities from other states to restore power in northern Illinois.

“We are expecting to have quite a bit of assistance on hand to help us,” according to the ComEd spokesperson.

ComEd is calling the July 11 storms and subsequent power outages one of the worst on record. 

“It’s one of the worst storms we’ve seen in the last 10 years,” a representative said.

To report a power outage, call: 1-800-Edison1, or via www.ComEd.com.

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Update 1:45 p.m. Storms and winds ripped through northwest Illinois Monday morning leaving thousands of area homes without power.

As of 1 p.m., ComEd’s had restored power to 178,000 homes, still leaving 564,000 without power in Chicagoland.

The northern* region, which includes Algonquin, Lake in the Hills, Huntley, Cary and Crystal Lake, still had 260,000 homes without power at 1 p.m.

ComEd was unable to give an estimated time of restoration for the area.

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At 9 a.m., ComEd’s northern* region, which includes Algonquin, Lake in the Hills, Huntley, Cary and Crystal Lake, had 280,000 reported homes without power.

In total, 615,000 of ComEd’s Chicagoland customers were facing power outages Monday morning, after the storm’s aftermath.

The western region saw 156,000 homes without power, south 80,000 and city of Chicago had 108,000 powerless customers.

At this time, ComEd was unable to provide exact numbers and locations as to where the power outages affected the area.

To report a power outage, call 1-800-Edison-1 or visit ComEd’s website.

Check back with Patch for more details as they become available.

* Patch was misinformed by a ComEd representative on Monday when we reported that the Crystal Lake region was considered in ComEd’s western region; the company said it is actually in the northern boundary.