Winter storm warnings were in effect for parts of Michigan on Sunday, while weather advisories were in effect for parts of the Midwest and Great Lakes region.
The fall season has been off to a late start in the central and Northeastern United States, but chilly air this weekend could be a jolt, especially to those who endured a sweltering summer.
Researchers and a television crew were looking for two naval ships lost in Lake Superior a century ago. Instead, they found a tugboat that mysteriously sank in 1879.
Lawmakers in Michigan have long fought tough pollution controls. But the toll of flooding, lost crops and damage to the Great Lakes appears to be changing minds.