More than 176,000 people were left without power throughout the Chicago area after a winter storm pummeled northern Illinois with snow from Sunday to Monday.

As of 8:45 a.m. Monday, 91,816 ComEd customers in Cook County were affected by power outages, with 24,150 of those in Chicago, according to the company’s outage map.

DuPage County saw 27,278 customers reporting outages, the second-highest total outside Cook County, according to ComEd; 20,482 were reported Lake County, 11,990 in Kane County, 909 in McHenry County, 3,643 in Kendall County and 11,730 in Will County.

The total number of outages in ComEd’s service area was 176,814. Customers can report outages and emergencies to ComEd 24/7 at 800-EDISON-1.

On Sunday morning, the electricity and heat service said they were increasing staffing to accommodate the blizzard’s swift winds and whiteout conditions.

Customers should stay away from downed power lines and flooded basements, as they pose dangers of electrocution, ComEd said. Trees, tree limbs and storm-damaged buildings should also be avoided.

The National Weather Service announced a blizzard warning Sunday afternoon to early Monday across most of northern Illinois, with the storm causing “life threatening travel conditions” Sunday night.

Thunderstorms also began to spark across the area about 11:30 p.m. Sunday, creating additional risk for being outside.

Holiday travelers were already facing heavy delays and cancellations at both of the city’s airports throughout the weekend.