A gray haze from wildfire smoke could be seen in Cincinnati, and the entire state of Minnesota is under an air quality alert.

There's a haze in the sky across a large portion of the Midwest. The smoke coming from more than 210 fires burning in Canada, according to the Canadian Interagency Forest Fire Center, on Friday, June 6.

New Jersey residents may notice hazy skies over the next few days as smoke from Canadian wildfires drifts across the United States.