Canadian wildfire smoke returns, bringing haze to Michigan. As of July 25, advisories are in effect for the U.P. and northern Lower Peninsula.

At 12:40 p.m. Thursday, the National Weather Service issued the alert for Midland, Bay, Saginaw, Huron, Tuscola and Sanilac counties, warning that fine particulates in the air are expected to spike into the “Unhealthy for Sensitive Groups” range through 12:45 p.m. Friday.

Canadian Wildfires some still burning from this past April will push Unhealthy Levels of Smoke into northern Minnesota Today mainly along a line from East Grand Forks to Bemidji to Duluth and east over Lake Superior,