622
AEUS73 KIWX 161633
AQAIWX

Air Quality Alert Message
Relayed by National Weather Service Northern Indiana
1233 PM EDT Mon Jun 16 2025

MIZ078-177-277-180400-
Cass MI-Northern Berrien-Southern Berrien-
Including the cities of Dowagiac, Cassopolis, Edwardsburg,
Marcellus, Benton Harbor, St. Joseph, Paw Paw Lake, Niles,
New Buffalo, Stevensville, and Berrien Springs
1233 PM EDT Mon Jun 16 2025

...AIR QUALITY ADVISORY FOR TUESDAY JUNE 17, 2025...

The Michigan Department of Environment, Great Lakes, and Energy
(EGLE) has declared an Air Quality Advisory for June 17, for
elevated levels of ozone in several western lake shore counties.
Pollutants within those areas are expected to be in the Unhealthy for
Sensitive Groups (USG, Orange AQI) range.

The Air Quality Advisory is in effect for the following counties in
southwest Michigan...

Berrien and Cass

Although smoke advisories are no longer an issue for the meantime,
we are getting into the peak season for ozone development. This will
be the case for Tuesday, as all signs point towards the likely
development of elevated ozone along several lake shore counties.
Elements such as wind direction, temperature, dewpoint and upper air
conditions all point towards the likelihood that could see ozone
concentration in the USG range. Cloud cover is uncertain during the
peak heating hours, but enough sun will likely trigger the
photochemical reactions necessary to generate ozone.

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 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 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 EPA`s Air Now site:
https://www.airnow.gov/

$$