The potential for heavy snow on Sunday has led the National Weather Service to issue a Blizzard Warning in several counties across Illinois and southern Wisconsin—impacting travel plans for some.
A Blizzard Warning for Cook, DuPage, Lake, Kendall and LaSalle counties is now in effect, and will last through 6 a.m. Monday.
Will and Grundy counties have also been added to the warning, according to the National Weather Service.
A Winter Storm Warning was issued in for North Central and Northeast Illinois, starting at 6 a.m. Sunday until midnight, as heavy snow is expected throughout the region, with six inches or more possible across the northwest suburbs. Some locations could pick up as much as a foot of snow.
More than 800 flights have already been canceled as of 6 p.m. Sunday.
The Wisconsin area is forecasted to experience anywhere from 3 to 6 inches of snow.
Gusty winds of 25 to 35 MPH are also in the forecast, making for potentially hazardous driving conditions as people drive back home after the Thanksgiving weekend.
Some school closings likely on Monday.
Some areas saw rain Friday evening, and now colder air moves in.
Snowfall rates expected to drop around 1 inch per hour once the storm peaks in the evening on Sunday.
Original reporting suggested there may have been a watch in place starting Sunday but the National Weather Service replaced it with a warning as of Saturday afternoon.