The smoke is expected to remain over the northern and central Plains of the United States for the next couple of days, according to meteorologists.

Canadian wildfires in Manitoba and Saskatchewan have prompted air quality alerts in Minnesota, Wisconsin and Michigan on Wednesday and Thursday as residents are advised to "limit prolonged or heavy exertion.

The Wisconsin Department of Natural Resources (DNR) is recommending Wisconsinites reduce their time outdoors Thursday, July 31 and into Friday, Aug. 1 due to ongoing air quality advisories resulting from Canadian wildfire smoke.