Skies over much of Minnesota looked clearer and smelled cleaner Sunday as the most troublesome air from Canadian wildfires moved east into Wisconsin. But state and federal air quality monitors still say an area of unhealthy air for people with sensitivity could resurface Monday.

Wildfire smoke pouring into the state from Canadian fires has triggered a red air quality alert, signaling that the air is unhealthy for anyone and everyone to breath. The alert, issued by the Minnesota Pollution Control Agency, is in effect until 5 p.m. Saturday, Aug. 2, for large portions of the state, including the Minneapolis-St. Paul area.