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
$$
Andersen
INZ001-002-010-011-160500-
Lake IN-Porter-Newton-Jasper-
Including the cities of Gary, Hammond, Merrillville, Portage,
Valparaiso, Chesterton, Roselawn, Kentland, Morocco, Rensselaer,
and DeMotte
1142 AM CDT Tue Jul 15 2025
...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT CDT WEDNESDAY NIGHT...
An Air Quality Action Day has been forecast for Northwest Indiana
for elevated ozone levels and is in effect until midnight CDT
Wednesday night.
Ozone Levels are expected to be at unhealthy levels for sensitive
groups. For additional information...please visit the IDEM SMOG
Watch web site at www.SmogWatch.IN.gov or the EPA AIRNOW web site at
www.airnow.gov and click on Indiana.
$$
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/
$$
Thomas
INZ103-203-171000-
Northern La Porte-Southern La Porte-
Including the cities of Michigan City, La Porte, Kingsbury,
Fish Lake, Wanatah, La Crosse, and Union Mills
1039 AM CDT Tue Jul 15 2025
...AIR QUALITY ALERT IN EFFECT TODAY THROUGH MIDNIGHT CDT WEDNESDAY
NIGHT...
The officials at the Indiana Department of Environmental Management
have declared an Air Quality Action Day, in effect for Tuesday July
15 and Wednesday July 16.
An Air Quality Action Day for Ozone has been issued. Ozone levels
are expected to be in the Unhealthy for Sensitive Groups range.
Active children and adults, and people with respiratory disease,
such as asthma should limit prolonged outdoor exposure.
Here are some recommended actions that the public can take:
* Walk, bike, carpool or use public transportation.
* Avoid using the drive-through and combine errands into one trip.
* Avoid refueling your vehicle or using gasoline-powered lawn
equipment until after 7pm.
* Turn off your engine when idling for more than 30 seconds.
* Conserve energy by turning off lights or setting the air
conditioner to 75 degrees or above.
For additional information, please visit the IDEM Smog page at:
http://www.in.gov/idem/airmonitoring/smogwatch/
$$
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
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
$$
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.
$$
Hazardous Weather Outlook
National Weather Service Cleveland OH
930 PM EDT Tue Jul 15 2025
OHZ003-006>008-017-018-027-161200-
Lucas-Wood-Ottawa-Sandusky-Hancock-Seneca-Wyandot-
930 PM EDT Tue Jul 15 2025
This Hazardous Weather Outlook is for northwest Ohio.
.DAY ONE...Tonight.
Hazardous weather is not expected at this time.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Scattered showers and thunderstorms are expected Wednesday. Heavy
rainfall and localized flooding are possible and a few thunderstorms
may produce isolated damaging wind gusts, primarily during the
afternoon and early evening.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.
$$
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
237 PM CDT Tue Jul 15 2025
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-161945-
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
237 PM CDT Tue Jul 15 2025 /337 PM EDT Tue Jul 15 2025/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Limited Thunderstorm Risk.
DISCUSSION...
Isolated thunderstorms will continue through this evening,
especially south of I-80. No severe weather is expected.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Wednesday...
Elevated Thunderstorm Risk...with an associated:
Level 2 of 5 Severe Thunderstorm Risk.
Level 2 of 4 Flash Flooding Risk.
Limited Excessive Heat Risk.
Thursday...
Limited Flooding Risk.
Limited Thunderstorm Risk.
High Swim Risk Lake Michigan Beaches.
Friday...
High Swim Risk Lake Michigan Beaches.
Saturday through Monday...
Limited to Elevated Flooding Risk.
Limited to Elevated Thunderstorm Risk.
DISCUSSION...
Scattered severe storms are possible Wednesday afternoon with
damaging winds and damaging hail as the main threats. Flash
flooding may also occur where thunderstorms train.
High waves will cause dangerous swimming conditions at Lake
Michigan beaches Thursday through Friday.
There will be periodic bouts of showers and thunderstorms
Saturday through Monday. Any storm during this period may be
severe with damaging winds and flash flooding.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the north at 10 mph.
$$
Hazardous Weather Outlook
National Weather Service Indianapolis IN
317 PM EDT Tue Jul 15 2025
INZ021-028>031-035>049-161930-
Carroll-Warren-Tippecanoe-Clinton-Howard-Fountain-Montgomery-Boone-
Tipton-Hamilton-Madison-Delaware-Randolph-Vermillion-Parke-Putnam-
Hendricks-Marion-Hancock-Henry-
317 PM EDT Tue Jul 15 2025
This hazardous weather outlook is for central Indiana.
.DAY ONE...Through Tonight.
Scattered thunderstorms will continue into the evening hours before
diminishing overnight. Severe storms are not expected. Heavy rain and
lightning are threats from any storm.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Thunderstorms are likely most days, with the lowest threat being
Friday.
Isolated strong to marginally severe storms are possible Wednesday
night. Isolated damaging wind gusts are the primary threat.
Otherwise, lightning and locally heavy rain will be the primary
threats with storms this week.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not anticipated.
&&
More information, along with other weather, hydrological and climate
information can be found at http://weather.gov/ind
$$
Hazardous Weather Outlook
National Weather Service Wilmington OH
229 PM EDT Tue Jul 15 2025
INZ050-058-059-066-073>075-080-KYZ089>100-OHZ026-034-035-042>046-
051>056-060>065-070>074-077>082-088-161830-
Wayne-Fayette-Union-Franklin-Ripley-Dearborn-Ohio-Switzerland-
Carroll-Gallatin-Boone-Kenton-Campbell-Owen-Grant-Pendleton-Bracken-
Robertson-Mason-Lewis-Hardin-Mercer-Auglaize-Darke-Shelby-Logan-
Delaware-Miami-Champaign-Clark-Madison-Licking-Preble-Montgomery-
Greene-Pickaway-Fairfield-Butler-Warren-Clinton-Ross-Hocking-
Hamilton-Clermont-Brown-Highland-Adams-Pike-Scioto-
229 PM EDT Tue Jul 15 2025
This Hazardous Weather Outlook is for east central Indiana,
southeast Indiana, northeast Kentucky, northern Kentucky, central
Ohio, south central Ohio, southwest Ohio and west central Ohio.
.DAY ONE...This afternoon and tonight.
There is a low probability for widespread hazardous weather.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Several rounds of showers and storms are expected Wednesday through
Monday. These repeated episodes of heavy rain may lead to instances
of flash flooding.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.
$$
Hazardous Weather Outlook
National Weather Service Grand Rapids MI
458 AM EDT Tue Jul 15 2025
MIZ037>040-043>046-050>052-056>059-064>067-071>074-160900-
Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta-Isabella-Muskegon-
Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry-Eaton-
Ingham-Van Buren-Kalamazoo-Calhoun-Jackson-
458 AM EDT Tue Jul 15 2025
This hazardous weather outlook is for portions of southwest Lower
Michigan.
.DAY ONE...Today and Tonight
Patchy fog will be possible this morning.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday
Thunderstorms will become possible Wednesday morning, and will
continue to be possible into Thursday. Some of the storms could
become locally strong to severe. Large hail to quarter sized, wind
gusts up to 60 mph, locally heavy rainfall, and lightning will be
the main threats.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will be possible Wednesday afternoon and
evening.
$$
