Marquette, Michigan – A prolonged stretch of dangerous winter weather is expected to return to Upper Michigan beginning Thursday, bringing subzero temperatures, life-threatening wind chills, and frequent snow concerns through the following Wednesday.
According to the National Weather Service Climate Prediction Center, Upper Michigan is favored to see well below-normal temperatures during the Jan. 15–21 period as a strong Arctic air mass settles over the Upper Great Lakes. Precipitation is expected to run near seasonal averages, but the persistent cold will enhance lake-effect snow potential and allow ice to linger on roads for extended periods.
Communities across Marquette, Baraga, Alger, and Houghton counties face the highest risk for prolonged subzero wind chills, especially overnight and during early morning hours. Wind chills could drop dangerously low at times, increasing the risk of frostbite within minutes. Lake-effect snow bands may repeatedly impact U.S. 41, M-28, and M-26, leading to rapidly changing visibility and hazardous travel conditions.
In the western Upper Peninsula, including Ironwood, Ontonagon, and Wakefield, colder air combined with terrain effects could intensify snowfall rates at times. Snow-covered and icy secondary roads may become difficult to navigate, particularly during periods of blowing snow. Farther east, areas near Munising and Newberry could also see lake-enhanced snow and bitter cold, especially near Lake Superior shorelines.
Residents are urged to prepare now by checking heating systems, insulating exposed pipes, and ensuring backup heat sources are ready. Vehicles should be stocked with winter survival kits, including blankets, food, and fully charged devices. Limiting outdoor exposure during the coldest periods will be critical, especially for outdoor workers and vulnerable populations.
Wind chill advisories and lake-effect snow alerts are likely as confidence increases. Additional updates are expected as the Arctic pattern becomes more firmly established across Upper Michigan late next week.
