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Harsher winter weather starts tomorrow evening

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ROCKFORD (WREX) — Snow piles up again and temperatures plummet as we transition to the middle of the week.

The weather remains quiet until Wednesday afternoon. Temperatures get a little milder, with highs in the middle 30's (about 5 degrees warmer than earlier this week). We may see a little sunshine early Wednesday, then clouds build in ahead of the evening snow showers.

Models show the snow beginning Wednesday evening, with heavier showers initially. Later in the night, the snow becomes a lot lighter.

Snow starts up after 6 pm locally, so the tail end of the evening commute may be impacted. The snow will be heaviest through the evening, then gets lighter after midnight. We may only see light snow to flurries through sunrise Thursday, after which the weather dries up.

Forecast made 2/11/2020. Heavier snow amounts fall south of the Stateline.

In general, 1-3" of snow falls around the Stateline. The higher end of that range will be toward the southeast. As you approach I-80 and Chicago, the amounts climb. Areas south of I-80 may see between 3-6" of snowfall. Snow showers may fall heavily at times Wednesday evening south of I-80. Keep that in mind if you have to drive in that direction. Roads become slippery in a hurry to our south due to the heavier snow.

Watch out if you have to travel south of I-80 or towards Chicago through Thursday morning. Heavier snow showers strike to our south and east.

Arctic air floods the Stateline after the snow storm departs. Temperatures fall from the teens Thursday morning to the single digits by the evening. By Thursday night, we will see our first subzero temperatures of the winter season (which is very late compared to an average winter). Wind chills approach -20 degrees by Friday morning.

Valentine's Day looks frigid as the Arctic air lingers. Temperatures struggle to warm back into the teens. Wind chills remain below zero throughout the day, despite seeing a sunny sky. Warmth arrives immediately after that, however. We may be near or into the 40's by the end of the weekend and early next week. As we warm up, rain and light snow showers are possible Saturday evening and Monday.

Alex Kirchner

Alex Kirchner is the Chief Meteorologist at 13 WREX. He joined the 13 Weather Authority in 2014 and brings over a decade of forecasting experience to the weather department. Alex earned Certified Broadcast Meteorologist recognition from the American Meteorological Society, and his work at WREX earned him a Best TV Weathercaster award from the Illinois Broadcasters Association and a regional Emmy.

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