Winter Weather Advisory issued for Chicago region, icy conditions likely

Weather Blog

The National Weather Service issued a Winter Weather Advisory for counties across northeast Illinois Sunday night, as a storm bringing freezing drizzle to the area creates potentially hazardous conditions on the roads.

The NWS issued a Winter Weather Advisory for Dupage, McHenry, Cook, Lee, Lake, Kankakee, Iroquois, Kane, Ogle, Will, Grundy, Kendall, La Salle, De Kalb, Porter, Newton, Lake and Jasper counties, which takes effect Sunday night and lasts until 4 a.m. Monday.

With temperatures hovering in the middle 20s to lower 30s, patchy freezing drizzle mixed with snow will cause slick/dangerous conditions for travel as well as general outdoor activities across the entire Chicago area (northeast Illinois into northwest Indiana) overnight.

Indications are that heaviest precipitation and subsequently the area most likely to experience dangerous glazing, will be the northernmost section along the Illinois/Wisconsin state line.  Thus even though the drizzle and light snow may occur south of Interstate 80, the farther north you go, the worse the conditions could be.

Precipitation should gradually diminish and end from the west by sunrise or shortly thereafter.

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