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Air Quality Alert


INZ103-203-160330-
Northern La Porte-Southern La Porte-
Including the cities of Michigan City, La Porte, Kingsbury,
Fish Lake, Wanatah, La Crosse, and Union Mills
1020 AM CDT Mon Jul 14 2025

...AIR QUALITY ALERT IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT CDT
TUESDAY NIGHT...

The officials at the Indiana Department of Environmental Management
have declared an Air Quality Action Day, in effect for
Tuesday, July 15th.

An Air Quality Action Day for Ozone has been issued. Ozone
development may be enhanced by Canadian wildfire smoke over the Great
Lakes region. Ozone levels are expected to be in the Unhealthy for
Sensitive Groups range. Active children and adults, and people with
respiratory disease, such as asthma should limit prolonged outdoor
exposure.

Here are some recommended actions that the public can take:

 * Walk, bike, carpool or use public transportation.
 * Avoid using the drive-through and combine errands into one trip.
 * Avoid refueling your vehicle or using gasoline-powered lawn
equipment until after 7pm.
 * Turn off your engine when idling for more than 30 seconds.
 * Conserve energy by turning off lights or setting the air
conditioner to 75 degrees or above.

For additional information, please visit the IDEM Smog page at:

http://www.in.gov/idem/airmonitoring/smogwatch/

$$

MIZ063-068>070-075-076-083-160815-
St. Clair-Livingston-Oakland-Macomb-Washtenaw-Wayne-Monroe-
Including the cities of Port Huron, Howell, Pontiac, Warren,
Ann Arbor, Detroit, and Monroe
413 AM EDT Tue Jul 15 2025

...Air Quality ADVISORY in effect for Tuesday July 15th...

The Michigan Department of Environment, Great Lakes, and Energy has
declared an Air Quality Advisory for Tuesday July 15th for elevated
levels of ozone. Pollutants are expected to be in the Unhealthy for
Sensitive Groups range.

The advisory is in effect for the following Michigan counties...

St. Clair...Livingston...Oakland...Macomb...Washtenaw...Wayne and
Monroe.

It is recommended that, when possible, you avoid strenuous outdoor
activities, especially those with respiratory diseases such as
asthma. People and businesses are urged to avoid activities which can
lead to ozone formation. These activities include: refueling
vehicles or topping off when refueling, using gasoline powered lawn
equipment, using charcoal lighter fluid.

Positive activities include: driving less, telecommuting, walking
or bike riding, delaying or combining errands, using water-based
paints.

For further information, please see EPAs Air Now site for
up-to-date air quality data:

https://www.airnow.gov/

$$

BT

INZ001-002-010-011-160500-
Lake IN-Porter-Newton-Jasper-
Including the cities of Gary, Hammond, Merrillville, Portage,
Valparaiso, Chesterton, Roselawn, Kentland, Morocco, Rensselaer,
and DeMotte
1011 PM CDT Mon Jul 14 2025

...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT CDT TUESDAY NIGHT...

An Air Quality Action Day has been forecast for Northwest Indiana
for elevated ozone levels and is IN EFFECT UNTIL MIDNIGHT CDT
TUESDAY NIGHT.

Ozone Levels are expected to be at unhealthy levels for sensitive
groups. For additional information...please visit the IDEM SMOG
Watch web site at www.SmogWatch.IN.gov or the EPA AIRNOW web site at
www.airnow.gov and click on Indiana.

$$

MIZ047>049-053>055-060>062-082-160400-
Midland-Bay-Huron-Saginaw-Tuscola-Sanilac-Shiawassee-Genesee-Lapeer-
Lenawee-
Including the cities of Midland, Bay City, Bad Axe, Saginaw, Caro,
Sandusky, Owosso, Flint, Lapeer, and Adrian
1235 PM EDT Mon Jul 14 2025

...Air Quality Alert remains in effect for today, Monday July
14th...

The Michigan Department of Environment, Great Lakes, and Energy
(EGLE) has issued an Air Quality Alert for elevated levels of fine
particulate (PM2.5) that remains in effect through Midnight.
Pollutants across the state are expected to reach the Unhealthy (Red
AQI) to USG (Orange AQI) range in northern locations, with ranges of
USG to Moderate further south.

The Air Quality Alert today is statewide.

Plumes of wildfire smoke will continue to track across Michigan
today. Highest fine particulate concentrations will be seen in
northern areas with periods of Unhealthy AQI possible. Central
locations could see readings ranging from Unhealthy to USG, and
southern locations can expect levels of fine particulate in the
Moderate to USG range.

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

$$

U.S. Dept. of Commerce
NOAA National Weather Service
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Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
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