Active Weather Alerts
Air Quality Alert
Issued: 9:24 AM Aug. 4, 2025 – National Weather Service
The Wisconsin Department of Natural Resources has issued an Air Quality Advisory for the following counties: Brown, Calumet, Door, Florence, Forest, Kewaunee, Langlade, Lincoln, Manitowoc, Marathon, Marinette, Menominee, Oconto, Oneida, Outagamie, Portage, Shawano, Vilas, Waupaca, Waushara, Winnebago, and Wood. * WHAT...The PM2.5 AQI is expected to reach the Unhealthy for Sensitive Groups to Unhealthy level. * WHERE...All of Wisconsin. * WHEN...Until noon today, August 4. * ADDITIONAL DETAILS...Canadian wildfire smoke will continue to impact Wisconsin surface air quality. A mix of Unhealthy for Sensitive Groups (USG; Orange) AQI and Unhealthy (Red) AQI is forecast this morning as smoke persists over the region and continues to recirculate around a slowly moving surface high pressure system. The heaviest smoke is expected across eastern Wisconsin, while lighter impacts are more likely for western counties. A few locations may observe Moderate (Yellow) AQI, especially to the west. Conditions will continue to be reevaluated on a day-to-day basis, including updates to the forecast and any associated Air Quality Advisories. PRECAUTIONARY/PREPAREDNESS ACTIONS... Sensitive groups: Consider rescheduling or moving all activities inside. Go inside if you have symptoms. People with asthma: Follow your asthma action plan and keep quick-relief medicine handy. People with heart disease: Symptoms such as palpitations, shortness of breath, or unusual fatigue may indicate a serious problem. If you have any of these, contact your health care provider. Everyone else: Keep outdoor activities shorter and less intense. Go inside if you have symptoms. For more information on current air quality, please see: https://airquality.wi.gov &&
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