A major winter storm has prompted the closure of the Mackinac Bridge in Michigan, significantly impacting travel and daily routines across the region. The National Weather Service has issued blizzard warnings for much of the Upper Peninsula, predicting substantial snowfall ranging from 1 to 3 feet, with isolated areas possibly seeing close to 4 feet. The 'tip of the mitt' area is also anticipating heavy snow, with forecasts indicating between 6 to 16 inches, along with the potential for up to half an inch of ice accumulation.