Smoke from dozens of wildfires burning in Canada drifted south into the United States on Friday, carried by powerful upper-level winds and prompting air quality warnings across several Midwestern states, according to the U.S. Environmental Protection Agency.
The influx of smoke created unhealthy conditions for people and animals sensitive to pollution in parts of Minnesota and Wisconsin, with the agency’s AirNow interactive map showing a prominent strip of orange—indicating elevated pollution—moving from northwest to southeast across Wisconsin as of Friday afternoon.
