CHICAGO, IL - JANUARY 21: A man walks on ice along the shore of Lake Michigan as storm clouds, which dumped several inches of lake-effect snow on the city, heads east over the Lake on January 21, 2014 in Chicago, Illinois. (Photo by Scott Olson/Getty Images)LANSING, Mich. – Authorities in Michigan are warning people to be extremely cautious on frozen bodies of water after six snowmobiles have fallen through ice in less than two weeks. State Conservation officers in southeastern Michigan are seeing snowmobilers riding into open water and falling through ice, said Sgt. In Michigan’s Upper Peninsula, officers responded Jan. 22 to reports of a drowning after strong winds created a pressure crack in ice over Lake Michigan. “Be aware of the ice conditions before you go out,” Becker said.