weather.gov     
National Weather Service

Watches, Warnings & Advisories
NWS Homepage

Air Quality Alert


Air Quality Advisory
National Weather Service Marquette MI
1028 AM EDT Sat Aug 2 2025

MIZ001>007-009>014-084-085-040400-
Keweenaw-Ontonagon-Northern Houghton-Baraga-Marquette-Alger-Luce-
Gogebic-Iron-Dickinson-Menominee-Delta-Southern Schoolcraft-
Southern Houghton-Northern Schoolcraft-
1028 AM EDT Sat Aug 2 2025 /928 AM CDT Sat Aug 2 2025/

...AIR QUALITY ADVISORY FOR SATURDAY AUGUST 2 THROUGH SUNDAY AUGUST
3...

The Michigan Department of Environment, Great Lakes, and Energy
(EGLE) has issued an Air Quality Advisory for elevated levels of fine
particulate (PM2.5) across the state of Michigan. Pollutants are
expected to be in the Unhealthy for Sensitive Groups (USG, Orange
AQI) range from Thursday until Saturday with some locations reaching
the Unhealthy (Red AQI) range.

The Air Quality Advisory includes all Michigan counties.

Canadian wildfire smoke will re-enter Michigan, statewide, Saturday
afternoon and persist through at least Sunday. A High-pressure system
sitting in the Midwest will continue to funnel wildfire smoke into
the state and cause little to no dispersion due to stagnant
conditions.

It is recommended that, when possible, you avoid strenuous outdoor
activities, especially those with heart disease and respiratory
diseases like 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;
- 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 up-to-date air quality data nationally visit EPAs Air Now site:
https://www.airnow.gov/

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

$$

GS

MIZ016>018-020>036-041-042-086>088-095>099-040345-
Emmet-Cheboygan-Presque Isle-Leelanau-Antrim-Otsego-Montmorency-
Alpena-Benzie-Grand Traverse-Kalkaska-Crawford-Oscoda-Alcona-
Manistee-Wexford-Missaukee-Roscommon-Ogemaw-Iosco-Gladwin-Arenac-
Western Chippewa-Central Chippewa-Southeast Chippewa-
Western Mackinac-Eastern Mackinac-Mackinac Island/Bois Blanc Island-
Beaver Island and surrounding islands-Charlevoix-
1135 AM EDT Sat Aug 2 2025

...AIR QUALITY ADVISORY THROUGH SUNDAY...

The Michigan Department of Environmental Quality has issued an Air
Quality Advisory from Saturday August 2 through Sunday August 3. The
advisory is for elevated levels of fine particulates (PM2.5).
Pollutants are expected to be in the Unhealthy for Sensitive Groups
range...with some areas reaching the Unhealthy range.

The alert is in effect for the following Michigan Counties,

Chippewa, Mackinac, Emmet, Cheboygan, Presque Isle, Charlevoix,
Leelanau, Antrim, Otsego, Montmorency, Alpena, Benzie, Grand
Traverse, Kalkaska, Crawford, Oscoda, Alcona, Manistee, Wexford,
Missaukee, Roscommon, Ogemaw, Iosco, Gladwin, and Arenac.

Canadian wildfire smoke has overspread northern Michigan and is
expected to persist through at least Sunday. High pressure over the
Midwest will continue to funnel wildfire smoke into the state with
little to no dispersion expected due to stagnant conditions.

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.

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 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.

$$

JPB

WIZ017-029-032>034-041>044-053>055-061-031700-
Taylor-Clark-Buffalo-Trempealeau-Jackson-La Crosse-Monroe-Juneau-
Adams-Vernon-Crawford-Richland-Grant-
Including the cities of Medford, Neillsville, Alma, Arcadia,
Whitehall, Black River Falls, La Crosse, Sparta, Tomah, Mauston,
Friendship, Viroqua, Prairie Du Chien, Richland Center,
and Platteville
1033 AM CDT Sat Aug 2 2025

The Wisconsin Department of Natural Resources has issued an Air
Quality Advisory for the following counties: Adams, Buffalo,
Clark, Crawford, Grant, Jackson, Juneau, La Crosse, Monroe,
Richland, Taylor, Trempealeau, and Vernon.

WHAT...The PM2.5 AQI is expected to reach the Unhealthy for
Sensitive Groups to Unhealthy level.

WHERE...All of Wisconsin

WHEN...Until noon Sunday, August 3

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.

Additional Details:
Canadian wildfire smoke will continue to impact Wisconsin`s
surface air quality this weekend. A mix of Unhealthy for
Sensitive Groups (USG; Orange) AQI and Unhealthy (Red) AQI is
forecast again today as smoke recirculates around a slowly-moving
surface high pressure system. Heavier smoke is expected across
northern and eastern Wisconsin today, while lighter impacts are
more likely for southern and western counties. A few locations
may end up in the upper range of Moderate AQI. Conditions will
continue to be reevaluated on a day-to-day basis, including
updates to the forecast and any associated Air Quality
Advisories.

For more information on current air quality, please see:
https://airquality.wi.gov

$$

KDS

WIZ014>016-023>028-022345-
Polk-Barron-Rusk-St. Croix-Pierce-Dunn-Pepin-Chippewa-Eau Claire-
Including the cities of Osceola, Rice Lake, Ladysmith, Hudson,
River Falls, Menomonie, Durand, Chippewa Falls, and Eau Claire
1031 AM CDT Sat Aug 2 2025

The Wisconsin Department of Natural Resources has issued an Air
Quality Advisory for the following counties: Adams, Ashland,
Barron, Bayfield, Brown, Buffalo, Burnett, Calumet, Chippewa,
Clark, Columbia, Crawford, Dane, Dodge, Door, Douglas, Dunn, Eau
Claire, Florence, Fond du Lac, Forest, Grant, Green, Green Lake,
Iowa, Iron, Jackson, Jefferson, Juneau, Kenosha, Kewaunee, La
Crosse, Lafayette, Langlade, Lincoln, Manitowoc, Marathon,
Marinette, Marquette, Menominee, Milwaukee, Monroe, Oconto,
Oneida, Outagamie, Ozaukee, Pepin, Pierce, Polk, Portage, Price,
Racine, Richland, Rock, Rusk, Sauk, Sawyer, Shawano, Sheboygan,
St. Croix, Taylor, Trempealeau, Vernon, Vilas, Walworth,
Washburn, Washington, Waukesha, Waupaca, Waushara, Winnebago,
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 Sunday, August 3

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.

Additional Details:
Canadian wildfire smoke will continue to impact Wisconsin`s
surface air quality this weekend. A mix of Unhealthy for
Sensitive Groups (USG; Orange) AQI and Unhealthy (Red) AQI is
forecast again today as smoke recirculates around a slowly-moving
surface high pressure system. Heavier smoke is expected across
northern and eastern Wisconsin today, while lighter impacts are
more likely for southern and western counties. A few locations
may end up in the upper range of Moderate AQI. Conditions will
continue to be reevaluated on a day-to-day basis, including
updates to the forecast and any associated Air Quality
Advisories.

For more information on current air quality, please see:
https://airquality.wi.gov



$$

WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-021700-
Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln-
Langlade-Menominee-Northern Oconto County-Door-Marathon-Shawano-
Wood-Portage-Waupaca-Outagamie-Brown-Kewaunee-Waushara-Winnebago-
Calumet-Manitowoc-Southern Marinette County-
Southern Oconto County-
Including the cities of Eagle River, Lac Du Flambeau,
Rhinelander, Crandon, Aurora, Commonwealth, Spread Eagle,
Niagara, Wausaukee, Merrill, Tomahawk, Antigo, Keshena, Neopit,
Mountain, Lakewood, Townsend, Sturgeon Bay, Fish Creek,
Sister Bay, Wausau, Shawano, Marshfield, Wisconsin Rapids,
Stevens Point, Plover, New London, Waupaca, Clintonville,
Appleton, Green Bay, Kewaunee, Luxemburg, Redgranite, Wautoma,
Oshkosh, Neenah, Menasha, Chilton, Brillion, New Holstein,
Manitowoc, Two Rivers, Harmony, Peshtigo, Porterfield, Crivitz,
High Falls Reservoir, Loomis, Middle Inlet, Little Suamico,
Sobieski, Brookside, Oconto, and Pensaukee
354 AM CDT Sat Aug 2 2025

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 Saturday, August 2

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.

Additional Details:
Canadian wildfire smoke will continue to impact Wisconsin`s
surface air quality over the weekend. A mix of Unhealthy for
Sensitive Groups (USG; Orange) AQI and Unhealthy (Red) AQI is
still expected tonight, with locations farther north more likely
to see heavier smoke. Some improvement is currently anticipated
over the weekend, but USG (Orange) AQI to Unhealthy (Red) AQI
will remain possible. Conditions will continue to be reevaluated
on a day-to-day basis, including updates to the forecast and any
associated Air Quality Advisories.

For more information on current air quality, please see:
https://airquality.wi.gov

$$

MNZ010>012-018>021-025-026-033>038-041700-
Koochiching-North St. Louis-Northern Cook and Lake-North Itasca-
Central St. Louis-Southern Lake-Southern Cook-North Cass-
South Itasca-South Cass-Crow Wing-Northern Aitkin-South Aitkin-
Carlton and South St. Louis-Pine-
Including the cities of International Falls, Ely, Isabella,
Bigfork, Hibbing, Two Harbors, Silver Bay, Grand Marais, Walker,
Grand Rapids, Pine River, Brainerd, Hill City, Aitkin, Duluth,
Pine City, and Hinckley
342 PM CDT Fri Aug 1 2025

...AIR QUALITY ALERT NOW IN EFFECT UNTIL NOON CDT MONDAY...

* WHAT...The Minnesota Pollution Control Agency has issued an Air
Quality Alert for fine particles pollution. The Air Quality Index
(AQI) is expected to reach the Red or Unhealthy category.

* WHERE...West central, east central, central, south central,
southwest, southeast, north central, northwest, and northeast
Minnesota.

* WHEN...Until noon CDT Monday.

* IMPACTS...Some members of the general public may experience
health effects. Sensitive groups, such as people with lung
disease (including asthma), heart disease, and children and older
adults, may experience health effects.

* ADDITIONAL DETAILS...Surface high pressure will camp out over
the region through Friday evening and will result in light winds
and poor dispersion. Smoke with widespread red/unhealthy air
quality index (AQI) concentrations will likely remain over most
of the state through tonight and into the day Saturday. Winds
will increase out of the south over the weekend as high pressure
drifts east of the area. Smoke concentrations should gradually
decline starting Saturday, but the clearing of the smoke may be
slow with smoke spreading as far south as Tennessee and Missouri.
Orange AQIs (unhealthy for sensitive groups) could hang on
through Sunday and into the day Monday. Most of the alert-level
smoke should push north back into Canada by later Monday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Sensitive groups, such as people with lung disease (including
asthma), heart disease, and children and older adults, should
avoid prolonged or heavy exertion. The general public should
limit prolonged or heavy exertion. Reduce or eliminate activities
that contribute to air pollution, such as outdoor burning, and
use of residential wood burning devices. Reduce vehicle trips and
vehicle idling as much as possible. Keep windows closed overnight
to prevent smoke from getting indoors.

&&

For information on current air quality conditions in your area
and to sign up for daily air quality forecasts and alert
notifications by email, text message, phone, or the EPA AirNow
mobile app, visit https://www.pca.state.mn.us/air-water-land-
climate/current-air- quality-conditions. You can find additional
information about health and air quality at
https://www.pca.state.mn.us/air-water-land- climate/air-quality-
and-health.

$$

WIZ001>004-006>009-021700-
Douglas-Bayfield-Ashland-Iron-Burnett-Washburn-Sawyer-Price-
Including the cities of Superior, Washburn, Bayfield, Ashland,
Hurley, Grantsburg, Spooner, Hayward, and Phillips
1023 AM CDT Fri Aug 1 2025

The Wisconsin Department of Natural Resources has issued an Air
Quality Advisory for the following counties: Ashland, Bayfield,
Burnett, Douglas, Iron, Price, Sawyer, Washburn.

WHAT...The PM2.5 AQI is expected to reach the Unhealthy for
Sensitive Groups to Unhealthy level.

WHERE...All of Wisconsin

WHEN...Until noon Saturday, August 2

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.

Additional Details:
Canadian wildfire smoke will continue to impact Wisconsin`s
surface air quality over the next several days. Conditions have
improved since Thursday as a pocket of cleaner air has
infiltrated the widespread blanket of dense smoke across eastern
Wisconsin. However, a mix of Unhealthy for Sensitive Groups (USG;
Orange) AQI and Unhealthy (Red) AQI is still expected today, with
locations farther north more likely to see heavier smoke.
Continued gradual improvement is currently anticipated heading
into the weekend, but USG (Orange) AQI to Unhealthy (Red) AQI
will remain possible. Conditions will continue to be reevaluated
on a day-to-day basis, including updates to the forecast and any
associated Air Quality Advisories.

For more information on current air quality, please see:
https://airquality.wi.gov



$$

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE