Air Quality Alert
MIZ078-177-277-170530-
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
126 PM EDT Tue Jul 15 2025
...AIR QUALITY ADVISORY IN EFFECT THROUGH WEDNESDAY JULY 16th...
The Michigan Department of Environment, Great Lakes, and Energy
(EGLE) has declared an Air Quality Advisory for Tuesday July 15 and
Wednesday July 16, for elevated levels of ozone and fine particulate
(PM2.5) in parts of southwest Michigan. 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
Wildfire smoke may trigger elevated particulates and ozone levels.
It is recommended that, when possible, you stay indoors and keep
time outdoors short and avoid strenuous activities, especially those
with respiratory diseases such as asthma.
Recommendations to reduce pollution and potential health effects:
PM 2.5:
* Reduce or eliminate outdoor burning, and the 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.
Ozone:
* Using gas-powered lawn equipment;
* Driving less or delaying and/or combining errands;
* Refueling less or topping off when refueling.
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/
For further health information, please see MDHHS`s Wildfire Smoke
and You Health site:
https://www.michigan.gov/mdhhs/safety-injury-prev/environmental-
health/your-health-and-wildfire-smoke
$$
Andersen
MIZ050-056-057-064-071-170400-
Muskegon-Ottawa-Kent-Allegan-Van Buren-
Including the cities of Muskegon, Grand Haven, Jenison,
Grand Rapids, Holland, and South Haven
1203 PM EDT Tue Jul 15 2025
Air Quality Advisory for July 16, 2025
The Michigan Department of Environment, Great Lakes, and
Energy (EGLE) has declared an Air Quality Advisory for July
16 for elevated levels of ozone in several western lake shore
counties.
Pollutants within those areas are expected to be in the
Unhealthy for Sensitive Groups (USG, Orange AQI) range.
The Air Quality Advisory is in effect for the following
Michigan counties:
Allegan, Kent, Muskegon, Ottawa, and Van Buren
As wildfire smoke exits the region, leftover chemical precursors
are present which could trigger elevated ozone levels. Original
forecasts of early cloud cover during Wednesday now look less
likely as projected West Michigan lake dynamics look to delay the
cloud arrival.
Minus the cloud coverage, elements such as wind direction,
temperature, dew points, and upper air conditions all point towards
the likelihood that elevated ozone concentrations, in the USG range,
could occur throughout those counties.
It is recommended that, when possible, you avoid strenuous outdoor
activities, especially those with respiratory diseases such as asthma.
People and businesses are urged to avoid activities which can lead to
ozone formation.
These activities include: refueling vehicles or topping off when
refueling; using gasoline powered lawn equipment; using charcoal
lighter fluid.
Positive activities include: driving less; telecommuting; walking or
bike riding; delaying or combining errands; using water-based
paints.
For further information, please see EPAs Air Now site for up-to-date
air quality data: https://www.airnow.gov/
$$
Thomas
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/
$$
BT
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Northern Indiana
931 PM EDT Tue Jul 15 2025
INZ005>009-012>015-017-018-020-022>027-032>034-103-104-116-203-204-
216-MIZ078>081-177-277-OHZ001-002-004-005-015-016-024-025-170145-
Elkhart-Lagrange-Steuben-Noble-De Kalb-Starke-Pulaski-Marshall-
Fulton IN-Whitley-Allen IN-White-Cass IN-Miami-Wabash-Huntington-
Wells-Adams-Grant-Blackford-Jay-Northern La Porte-
Eastern St. Joseph IN-Northern Kosciusko-Southern La Porte-
Western St. Joseph IN-Southern Kosciusko-Cass MI-St. Joseph MI-
Branch-Hillsdale-Northern Berrien-Southern Berrien-Williams-
Fulton OH-Defiance-Henry-Paulding-Putnam-Van Wert-Allen OH-
931 PM EDT Tue Jul 15 2025 /831 PM CDT Tue Jul 15 2025/
This Hazardous Weather Outlook is for northern Indiana, southwest
Michigan and northwest Ohio.
.DAY ONE...Tonight.
Hazardous weather is not expected at this time.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Periodic chances of showers and thunderstorms are expected for much
of this period. Greatest potential of storms will be Wednesday night
into Thursday, and then again on Saturday and Sunday. There is a
Marginal Risk of severe storms for Wednesday night, mainly for a
threat of strong wind gusts. Some locally heavy rainfall is possible
with any of the thunderstorms.
Dangerous swimming conditions are possible Thursday afternoon into
early Friday across southeast Lake Michigan beaches. North winds are
expected to develop behind a cold front leading to building waves.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.
$$
Hazardous Weather Outlook
National Weather Service Gaylord MI
341 PM EDT Tue Jul 15 2025
LHZ345>349-LMZ323-341-342-344>346-LSZ321-322-161945-
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
341 PM EDT Tue Jul 15 2025
This hazardous weather outlook is for the northern Michigan
nearshore waters of Lake Huron, Lake Michigan and Lake Superior.
.DAY ONE...This afternoon and tonight.
Scattered thunderstorms are possible across Whitefish Bay into the
St. Mary`s River late today into tonight. Widespread severe
weather is not expected, but a stronger wind gust or two is
possible.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Scattered thunderstorms are possible Wednesday into Wednesday
night across the nearshore and open waters of northern lower and
eastern upper Michigan. Torrential rainfall is possible, along
with some stronger wind gusts.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not anticipated.
For more information visit http://weather.gov/gaylord.
$$
Hazardous Weather Outlook
National Weather Service Gaylord MI
341 PM EDT Tue Jul 15 2025
MIZ016>018-020>036-041-042-086>088-095>099-161945-
Emmet-Cheboygan-Presque Isle-Leelanau-Antrim-Otsego-Montmorency-
Alpena-Benzie-Grand Traverse-Kalkaska-Crawford-Oscoda-Alcona-
Manistee-Wexford-Missaukee-Roscommon-Ogemaw-Iosco-Gladwin-Arenac-
Western Chippewa-Central Chippewa-Southeast Chippewa-
Western Mackinac-Eastern Mackinac-
Mackinac Island/Bois Blanc Island-
Beaver Island and surrounding islands-Charlevoix-
341 PM EDT Tue Jul 15 2025
This hazardous weather outlook is for Eastern Upper Michigan and
Northern Lower Michigan.
.DAY ONE...This afternoon and tonight.
Some isolated showers and thunderstorms are possible this evening
across the eastern upper peninsula.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Moderate chances for scattered thunderstorms are expected this
Wednesday through Wednesday night, especially for a few stronger
storms across northern lower Michigan. Main hazards include
localized heavy rain and strong wind gusts.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not anticipated.
For more information visit http://weather.gov/gaylord.
$$
Hazardous Weather Outlook
National Weather Service Grand Rapids MI
458 AM EDT Tue Jul 15 2025
MIZ037>040-043>046-050>052-056>059-064>067-071>074-160900-
Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta-Isabella-Muskegon-
Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry-Eaton-
Ingham-Van Buren-Kalamazoo-Calhoun-Jackson-
458 AM EDT Tue Jul 15 2025
This hazardous weather outlook is for portions of southwest Lower
Michigan.
.DAY ONE...Today and Tonight
Patchy fog will be possible this morning.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday
Thunderstorms will become possible Wednesday morning, and will
continue to be possible into Thursday. Some of the storms could
become locally strong to severe. Large hail to quarter sized, wind
gusts up to 60 mph, locally heavy rainfall, and lightning will be
the main threats.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will be possible Wednesday afternoon and
evening.
$$
