Wildfire smoke from Canada creates hazy conditions and poor air quality in Green Bay May 30, 2025. PC: Fox 11 Online
(WLUK-WTAQ) — Canadian wildfire smoke is moving back into Wisconsin.
An air quality advisory has been issued for multiple Northeast Wisconsin counties from 10 a.m. to Tuesday at 3 p.m.
The smoke is expected to move across northern portions of the state later Monday morning through early Tuesday afternoon. The heaviest smoke impacts are expected in far northwest Wisconsin, where PM2.5 NowCast AQI values of Unhealthy (Red) will be possible. Lesser impacts in the Moderate (Yellow) to Unhealthy for Sensitive Groups (Orange) AQI range are expected further south and east in the advisory area.
A cold front moving in from the northwest on Tuesday morning will begin to clear this initial round of smoke from northwest to southeast. Although more smoke could move in behind the front.
The counties affected are:
Adams, Ashland, Barron, Bayfield, Brown, Buffalo, Burnett, Chippewa, Clark, Door, Douglas, Dunn, Eau Claire, Florence, Forest, Iron, Jackson, Juneau, Kewaunee, La Crosse, Langlade, Lincoln, Marathon, Marinette, Menominee, Monroe, Oconto, Oneida, Outagamie, Pepin, Pierce, Polk, Portage, Price, Rusk, Sawyer, Shawano, St. Croix, Taylor, Trempealeau, Vernon, Vilas, Washburn, Waupaca, Waushara, Wood
Sensitive groups should make outdoor activities shorter and less intense. It is OK to be active outdoors but take more breaks. Watch for symptoms such as coughing or shortness of breath.
People with asthma should keep quick relief medicine handy and those with heart disease should look out for symptoms such as palpitations, shortness of breath, or unusual fatigue may indicate a serious problem.
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