Wisconsin weather forecast: First snow chance this weekend

Southern Wisconsin may see its first brush with winter this weekend with a mix of rain and slushy snow, followed by a true blast of Arctic air that will send temperatures plunging well below normal through early next week.

Mix of rain and snow for Saturday in Milwaukee

Wintry Mix For Saturday

Low Pressure Brings Rain-to-Snow Mix Saturday

What we know:

A strong area of low pressure is expected to develop over Nebraska and Kansas on Saturday, Nov. 8, before tracking into northwest Ohio by Sunday morning, impacting Wisconsin on its way through. That path will dictate who sees snow and how much. 

Rain should arrive on Saturday afternoon and gradually mix with, then change to, snow Saturday evening into early Sunday. 

Weekend snow for wisconsin.

Slushy accumulations this weekend.

Saturday’s low, tracking south and east of us will draw in cooler air south from Canada. Lift and weak frontogenesis will be focused near the Wisconsin-Illinois border, with precipitation heaviest near Lake Michigan and northern Illinois.  FOX6 Weather Experts want to emphasize that any accumulation should be slushy and mainly on grassy or elevated surfaces. Roads are expected to stay mostly wet.

If the low takes a more northern route, it could bring heavier precipitation farther inland, while a southern path would limit the snow mainly to far southeast Wisconsin.

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Areas near Lake Michigan will likely stay warmer, with more rain than snow. At this point, snow totals look light, and impacts minimal, but heavier bursts could briefly coat roads late Saturday night. However, persistent west-northwest winds could also spark lake-effect snow showers downwind of Lake Michigan, particularly Sunday into Monday.

Arctic Air Follows With the Coldest Temps of the Season

What's next:

By Sunday, a deep 500-mb trough anchors over the Great Lakes, locking in below-normal temperatures and brisk northwest winds. We expect this to be the coldest air of the season so far. Highs on Sunday may not climb out of the 30s, and overnight lows will fall into the upper teens and low 20s. Wind chills could dip into the teens on Sunday night and Monday morning.

That cold pattern will linger for a few days as a series of reinforcing cold fronts sweep across the Midwest and Great Lakes through early next week, locking in a deep trough over the eastern half of the U.S. and driving temperatures to 10 to 20 degrees below average.

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By midweek, temperatures may begin to rebound slightly as the pattern shifts, allowing some milder air to return from the Plains. Still, the early-week chill will mark the first true taste of winter for southern Wisconsin and a reminder that November means business on the Great Lakes.

The Source: Information in this post was provided by the Wisconsin Weather Experts, the Weather Prediction Center and the National Weather Service.

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