Nov. 24--A cold front arriving in the Chicago area Sunday night could trigger several inches of snow in the north, northwest and far west suburbs Monday afternoon and evening, the National Weather Service warned Sunday.
The weather service issued a winter weather advisory for between 3 p.m. and midnight Monday for Lake, McHenry and Kane counties, as well as much of the rest of northern Illinois west of the Chicago area and parts of southern Wisconsin.
Two weather systems are expected to combine Sunday night over southern Lake Michigan, bringing much colder air and turning rain to snow, according to the weather service. Snowfall accumulations of 3 to 5 inches are expected in Lake, McHenry and Kane counties, with some higher accumulations possible in northern areas. Winds will shift from the southwest to the north and northwest, and increase to 20 to 30 mph, with 40 mph gusts.
"As temperatures drop below freezing, roads may become snow-covered and slippery, especially during the afternoon and evening," according to the weather advisory. "Blowing snow will also cause reduced visibilities, especially on north/south roadways later Monday into Monday evening."
Highs Monday are expected to be in the mid-40s, and areas near Chicago should see about an inch of snow, according to the weather service. Temperatures are expected to drop into the low 30s late Monday afternoon, dropping into the 20s Monday night.
Looking ahead in Thanksgiving week, temperatures Tuesday are expected to stay in the 20s, with temperatures rising into the mid-30s on Wednesday. Wednesday should see a 40 percent chance of light snow, with a chance of light snow continuing Wednesday night.
Thanksgiving Day is expected to be partly cloudy and cold, with lows in the lower 20s, according to the weather service.
