969
AEUS73 KLOT 270607
AQALOT
AIR QUALITY ALERT MESSAGE
RELAYED BY NATIONAL WEATHER SERVICE CHICAGO IL
107 AM CDT WED MAY 27 2026
ILZ005-006-012-013-020-021-103>108-280500-
MCHENRY-LAKE IL-KANE-DUPAGE-KENDALL-GRUNDY-NORTHERN COOK-
CENTRAL COOK-SOUTHERN COOK-NORTHERN WILL-SOUTHERN WILL-EASTERN WILL-
INCLUDING THE CITIES OF CRYSTAL LAKE, ALGONQUIN, MCHENRY, WOODSTOCK,
WAUKEGAN, BUFFALO GROVE, MUNDELEIN, GURNEE, AURORA, ELGIN,
NAPERVILLE, WHEATON, DOWNERS GROVE, LOMBARD, CAROL STREAM, OSWEGO,
YORKVILLE, PLANO, MORRIS, COAL CITY, MINOOKA, EVANSTON, DES PLAINES,
SCHAUMBURG, PALATINE, NORTHBROOK, CHICAGO, CICERO, OAK LAWN,
OAK PARK, LA GRANGE, CALUMET CITY, OAK FOREST, LEMONT, ORLAND PARK,
PARK FOREST, JOLIET, BOLINGBROOK, PLAINFIELD, MOKENA, CHANNAHON,
MANHATTAN, WILMINGTON, CRETE, PEOTONE, AND BEECHER
107 AM CDT WED MAY 27 2026
..AIR QUALITY ALERT IN EFFECT THROUGH TONIGHT
THE ILLINOIS ENVIRONMENTAL PROTECTION AGENCY HAS ISSUED AN AIR
POLLUTION ACTION DAY FOR THE GREATER CHICAGO METROPOLITAN AREA
TODAY, WEDNESDAY MAY 27, AND IS IN EFFECT THROUGH TONIGHT.
A CHICAGO AREA "AIR POLLUTION ACTION DAY" IS DECLARED WHEN WEATHER
CONDITIONS ARE SUCH THAT WIDESPREAD OZONE AND OR PARTICULATE LEVELS
ARE EXPECTED TO BE AT OR ABOVE THE UNHEALTHY FOR SENSITIVE GROUPS
(USG) CATEGORY OF THE AIR QUALITY INDEX (AQI) FOR MULTIPLE DAYS.
OZONE IS EXPECTED TO BE THE PRIMARY POLLUTANT OF CONCERN TODAY.
ACTIVE CHILDREN AND ADULTS, ESPECIALLY PEOPLE WITH PULMONARY OR
RESPIRATORY DISEASE SUCH AS ASTHMA, SHOULD LIMIT PROLONGED OUTDOOR
ACTIVITY.
AREA RESIDENTS ARE URGED TO REDUCE POLLUTION LEVELS. AIR QUALITY
FORECASTS, CURRENT AIR QUALITY, AND TIPS ON HOW YOU CAN REDUCE YOUR
EMISSIONS CAN BE FOUND AT WWW.AIRNOW.GOV.
MEDIA CONTACT...ILLINOIS EPA.
INZ001-002-010-011-280500-
LAKE IN-PORTER-NEWTON-JASPER-
INCLUDING THE CITIES OF GARY, HAMMOND, MERRILLVILLE, PORTAGE,
VALPARAISO, CHESTERTON, ROSELAWN, KENTLAND, MOROCCO, RENSSELAER,
AND DEMOTTE
107 AM CDT WED MAY 27 2026
..AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT CDT TONIGHT
AN AIR QUALITY ACTION DAY HAS BEEN FORECAST FOR NORTHWEST INDIANA
FOR ELEVATED OZONE LEVELS AND IS IN EFFECT UNTIL MIDNIGHT CDT
TONIGHT.
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.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page