Air Quality Alert issued May 29 at 12:09PM EDT by NWS Marquette MI

The Michigan Department of Environmental Quality has issued an Air
Quality Advisory for elevated levels of fine particulates (PM2.5) in
the western half of the Upper Peninsula of Michigan. Pollutants
within those areas are expected to be in the Unhealthy for Sensitive
Groups range.

The Air Quality Advisory includes the following counties:

Baraga, Dickinson, Gogebic, Houghton, Iron, Keweenaw, Marquette,
Menominee, and Ontonagon.

A cold front moving down from Ontario early Friday morning will
bring wildfire smoke plumes from fires in the provinces of Manitoba
and Saskatchewan into the region. As a result, we anticipate PM2.5
levels rising into the Unhealthy for Sensitive Groups (USG) range
across the western portion of the Upper Peninsula. There is a
possibility that hourly levels could reach the Unhealthy (Red AQI)
range for a short period of time.

It is recommended that, when possible, you avoid strenuous outdoor
activities, especially those with heart disease and respiratory
diseases such as asthma.

Monitor for symptoms such as wheezing, coughing, chest tightness,
dizziness, or burning in nose, throat, and eyes. Reduce or eliminate
activities that contribute to air pollution, such as outdoor
burning, and use of residential wood burning devices.

Tips for households:

Keep windows closed overnight to prevent smoke from getting indoors
and, if possible, run central air conditioning with MERV-13 or
higher rated filters.

For up-to-date air quality data for Michigan visit the MiAir site:
https://air-egle.hub.arcgis.com/

For further information, please see EPA’s Air Now site for up-to-
date air quality data at https://www.airnow.gov

For further health information, please see MDHHS’ Wildfire Smoke and
Your Health site at https://www.michigan.gov/mdhhs/safety-injury-
prev/environmental-health/your-health-and-wildfire-smoke.

Air Quality Advisory
Michigan Department of Environment, Great Lakes, and Energy
May 29, 2025