Moderate to heavy snow concentrated tonight over the Eastern U.P. as the clipper system continues to pass through Upper Michigan. Following the system’s exit, lake effect snow then develops over the northwest wind belts. A combination of moderate to heavy snow plus gusty northwest winds can produce patchy blowing snow, impacting the Wednesday a.m. commute due to poor visibility at times in addition to the slippery roads.
Wintry precipitation diminishes Wednesday evening, only for scattered snow showers to return Thursday morning from a Canadian Prairies system. On Friday, the jet stream migrates north of the U.P., resulting in milder temperatures but also opening the door to an incoming system from the Northern Plains. This system will bring widespread rain and snow showers to Upper Michigan. The system departs the region on Christmas Day, with a chance of lake effect snow over the northwest wind belts to shower in the holiday season.
Wednesday: Partly to mostly cloudy with lake effect snow (LES) over the northwest wind belts, diminishing in the evening; breezy and cold
Thursday: Partly to mostly cloudy with scattered light snow showers
Friday, Christmas Eve: Mostly cloudy with widespread rain and snow showers
Saturday, Christmas Day: Partly to mostly cloudy with a chance of snow showers late
Sunday: Mostly cloudy with a chance of snow showers late; blustery
Monday: Mostly cloudy with a chance of snow early, then transition to mixed rain and snow in the afternoon; breezy
Tuesday: Partly to mostly cloudy with few snow showers early, then tapering off in the afternoon
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