Yet another round of light snow showers will slide through the Stateline Sunday afternoon, in very similar fashion to how Saturday's snow showers went. Much of the morning will start dry, as temperatures climb from the single digits to the mid-teens.
Light to steady snow may begin as early as 12-1PM for Northwestern parts of the area, pushing toward I-39 after 2-3PM. Heaviest pockets of snow will again be capable of coating roadways and reducing visibility. Blowing and drifting snow will be more of a concern Sunday with winds picking up through the afternoon and evening. Steady snow may persist into the late evening before a strong arctic front brings steady snow to an end between 10PM-12AM.
The strongest push of arctic air will arrive Sunday evening, sending temperatures down near or below zero by Monday morning. The strong arctic front will also bring Northwest wind gusts of 30-35 mph. Resulting wind chills will drop toward -20° or -25° Monday morning. Frostbite is possible in under 20 minutes in this bitter cold.
A cold weather advisory will go into effect for NW IL (Jo Daviess, Stephenson, Carroll, and Whiteside Counties) Sunday night into Monday morning where the highest confidence on dangerously cold wind chills will be likely. Wind chills will be near -20° to -25° areawide through mid-morning Monday.
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