LITCHFIELD — At least two people have died in flooding caused by powerful storms that damaged homes, washed out roads and stranded motorists in Wisconsin, Minnesota and Michigan.

In northern Wisconsin, an 84-year-old Illinois man died Tuesday when his vehicle became submerged in a flooded ditch, according to Bayfield County sheriff’s officials, who identified the victim as Delmar Johnson of Tower Lakes, Illinois. A firefighter was able to rescue the man’s wife, also 84, who was a passenger. The firefighter went back in the water and pulled Delmar Johnson from the vehicle, but couldn’t resuscitate him, officials said.

Also in Wisconsin, the Iron County Sheriff Tony Furyk said Wednesday that Montreal firefighter Mitchell Koski died in the flooding, but the sheriff declined to provide details. Furyk said the 56-year-old Koski was also a former county board member and was once mayor of Montreal, a city of about 800 near Hurley.

In southern Michigan, a woman and her 2-year-old son were rescued Tuesday evening in Jackson after lightning struck and toppled a tree onto their car, trapping them for about an hour. Storms that hit the state Tuesday flooded roads and left several thousand homes and businesses without power in Jackson County. The Michigan Emergency Operations Center was activated to provide assistance to those affected by the storms.

In Minnesota, Gov. Mark Dayton planned to travel Wednesday to Litchfield and Watkins, where Monday’s tornadoes flattened homes and uprooted trees. No serious injuries were reported.