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

The Canadian wildfire smoke that covered northwest Wisconsin July 24 has moved south and is causing air quality problems in most of the state.

"A lot of the prairies within Canada, the prairie provinces, entered the fire season already starting out in a drought, and so there wasn't a lot of moisture throughout the winter," said Alex Jones a communications manager at the Canadian Interagency Forest Fire Center.