weather.gov     
National Weather Service

Watches, Warnings & Advisories
NWS Homepage

Air Quality Alert


INZ050-058-059-066-130200-
Wayne-Fayette-Union-Franklin-
Including the cities of Richmond, Connersville, Liberty,
West College Corner, and Brookville
1204 AM EDT Thu Jun 12 2025

...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...

The Indiana Department of Environmental Management has declared an
Air Action Day, until midnight EDT tonight.

Levels of ozone within the region may approach or exceed unhealthy
standards.

On Alert days, help reduce ozone by taking the following actions:

  * Carpool, if possible, bike, walk or take the bus instead of
    driving alone.
  * Refuel your vehicle after 8 pm.
  * Do not idle your vehicle, exhaust contributes to air pollution.
  * Mow your lawn in the evening hours and avoid the use of
    gas-powered lawn equipment.

For additional actions and information, please visit the IDEM Smog
page at: https://apps.idem.in.gov/smogwatch.

$$

OHZ046-055-056-065-130200-
Delaware-Franklin-Licking-Fairfield-
Including the cities of Delaware, Downtown Columbus, Newark,
Lancaster, and Pickerington
1204 AM EDT Thu Jun 12 2025

...AIR QUALITY ALERT IN EFFECT FROM 6 AM THIS MORNING TO 10 PM EDT
THIS EVENING...

The Mid-Ohio Regional Planning Commission has issued an Air Quality
Alert for Delaware, Fairfield, Franklin and Licking counties in
Central Ohio, from 6 AM this morning to 10 PM EDT this evening.

Levels of ozone within the region may approach or exceed unhealthy
standards.

On Alert days, help reduce ozone by taking the following actions:

  * Carpool, if possible, bike, walk or take the bus instead of
    driving alone.
  * Refuel your vehicle after 8 pm.
  * Do not idle your vehicle, exhaust contributes to air pollution.
  * Mow your lawn in the evening hours and avoid the use of
    gas-powered lawn equipment.

For additional information, please visit the Mid-Ohio Regional
Planning Commission`s website at morpc.org/airquality

$$

INZ074-KYZ091>093-OHZ070-071-077-078-130200-
Dearborn-Boone-Kenton-Campbell-Butler-Warren-Hamilton-Clermont-
Including the cities of Bright, Lawrenceburg, Hidden Valley,
Greendale, Aurora, Dillsboro, Florence, Burlington, Oakbrook,
Covington, Erlanger, Independence, Newport, Fort Thomas,
Highland Heights, Bellevue, Dayton, Alexandria, Hamilton,
Middletown, Fairfield, Oxford, Mason, Lebanon, Landen, Springboro,
Franklin, Downtown Cincinnati, Milford, Summerside, Mount Carmel,
Mount Repose, Withamsville, Mulberry, and Day Heights
1204 AM EDT Thu Jun 12 2025

...AIR QUALITY ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...

The Southwest Ohio Air Quality Agency has issued an Air Quality
Advisory for Butler, Clermont, Hamilton and Warren counties in Ohio;
Boone, Campbell and Kenton counties in Kentucky; and Dearborn County
in Indiana, until midnight EDT tonight.

Levels of ozone within the region may approach or exceed unhealthy
standards.

On Alert days, help reduce ozone by taking the following actions:

  * Carpool, if possible, bike, walk or take the bus instead of
    driving alone.
  * Refuel your vehicle after 8 pm.
  * Do not idle your vehicle, exhaust contributes to air pollution.
  * Mow your lawn in the evening hours and avoid the use of
    gas-powered lawn equipment.

For additional information, please visit the Southwest Ohio Air
Quality Agency`s web site at
www.southwestohioair.org/local_air_quality

$$

INZ030-031-037>042-046-048-049-054>057-062>065-130400-
Clinton-Howard-Boone-Tipton-Hamilton-Madison-Delaware-Randolph-
Hendricks-Hancock-Henry-Morgan-Johnson-Shelby-Rush-Monroe-Brown-
Bartholomew-Decatur-
Including the cities of Frankfort, Kokomo, Lebanon, Zionsville,
Tipton, Fishers, Carmel, Noblesville, Anderson, Muncie, Winchester,
Union City, Farmland, Parker City, Plainfield, Brownsburg, Danville,
Greenfield, New Castle, Martinsville, Mooresville, Greenwood,
Franklin, Shelbyville, Rushville, Bloomington, Nashville, Columbus,
and Greensburg
342 AM EDT Thu Jun 12 2025

...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...

The officials at the Indiana Department of Environmental Management
have declared an Air Quality Action Day, IN EFFECT UNTIL MIDNIGHT
EDT TONIGHT.

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/

$$

INZ047-130400-
Marion-
Including the city of Indianapolis
342 AM EDT Thu Jun 12 2025

...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...

The officials at the Office of Sustainability for the City of
Indianapolis have called for a Knozone Action Day, IN EFFECT UNTIL
MIDNIGHT EDT TONIGHT.

A Knozone Action day means that a combination of high temperatures,
light winds, and other factors are expected to produce conditions
where high levels of ozone emissions may exceed federally mandated
standards.

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/

$$

INZ071-072-121315-
Jackson-Jennings-
Including the cities of Seymour and North Vernon
909 PM EDT Wed Jun 11 2025

...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...

The officials at the Indiana Department of Environmental Management
have declared an Air Quality Action Day, IN EFFECT UNTIL MIDNIGHT
EDT TONIGHT.

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/

$$

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