A major winter storm is impacting several regions of the United States, leading to blizzard warnings in Michigan's Upper Peninsula and raising concerns about avalanche risks in the Rockies. Michigan is preparing for up to 36 inches of snow and wind gusts up to 60 mph, making travel almost impossible, and the National Weather Service (NWS) is advising against non-emergency travel. In the Rockies, heavy snow and strong winds are increasing the risk of avalanches, especially in Montana's Absaroka/Beartooth and Crazy Mountains, making backcountry travel extremely dangerous and leading to avalanche warnings.