A weekend storm expected to bring a half-foot or more of snow to parts of Michigan's southern Lower Peninsula also has been snarling roadways.
Detroit radio and television stations report numerous vehicle accidents and spinouts on Saturday morning across southeastern Michigan. The reports come at the front end of a storm system that's expected remain in the state throughout the day.
The National Weather Service has issued a winter weather advisory for the region through midnight.
Cold, snowy weather gripping Michigan has caused problems on roadways in recent days, including a 40-vehicle pileup on a western Michigan expressway. That crash happened Thursday morning on U.S. 31 in Fruitland Township, north of Muskegon.