A north-northwest flow will keep the threat of showers moving over the region through Wednesday. Mountain passes could see 1 to 3 inches of snow. In general, valleys will see less than half an inch. Despite the low snow total forecast, roads will be slick at times and black ice will be possible on any untreated roads.

We're tracking the potential for a significant pattern change for the weekend. An arctic front will bring wind, well below normal temperatures, and accumulating snow. Roads will flash freeze as arctic air rushes in Saturday morning. Gusty winds will lead to areas blowing snow and reduced visibility, especially across the Flathead Valley. Sunday into Monday appears to be the time period where temperatures will be at their coldest. Subzero lows and frigid wind chills, especially along the divide, will be possible during this time period. Daytime highs will be in the teens and single digits through early next week.

The Climate Prediction Center 6-10 day outlook has a 80-90% for below normal temperatures to continue across the Northern Rockies through February 2.