221
WWUS73 KLOT 231512
NPWLOT
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
1012 AM CDT MON JUN 23 2025
ILZ103>105-240115-
/O.CON.KLOT.XH.W.0001.000000T0000Z-250624T0500Z/
NORTHERN COOK-CENTRAL COOK-SOUTHERN COOK-
INCLUDING THE CITIES OF PARK FOREST, OAK FOREST, DES PLAINES,
SCHAUMBURG, CALUMET CITY, ORLAND PARK, CHICAGO, LA GRANGE,
NORTHBROOK, EVANSTON, OAK PARK, LEMONT, CICERO, OAK LAWN, AND
PALATINE
1012 AM CDT MON JUN 23 2025
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CDT
TONIGHT...
* WHAT...DANGEROUSLY HOT AND HUMID CONDITIONS WITH HIGH TEMPERATURES
WELL INTO THE 90S AND AFTERNOON HEAT INDEX VALUES BETWEEN 100 AND
105 DEGREES EXPECTED.
* WHERE...CENTRAL COOK, NORTHERN COOK, AND SOUTHERN COOK COUNTIES.
* WHEN...UNTIL MIDNIGHT CDT TONIGHT.
* IMPACTS...HEAT RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING
EXTREME HEAT AND HIGH HUMIDITY EVENTS. THE MAGNITUDE OF
ANTICIPATED HEAT, COMBINED WITH OPPRESSIVE WARMTH AT NIGHT WILL
LEAD TO HAZARDOUS CONDITIONS, PARTICULARLY FOR THE ELDERLY AND
THOSE WITH PRE-EXISTING HEALTH CONDITIONS. RESIDENTS OF THE CITY
OF CHICAGO CAN CALL 3 1 1 TO REQUEST WELL BEING CHECKS FOR ELDERLY
FRIENDS OR FAMILY MEMBERS, OR FOR INFORMATION ON FINDING THE
NEAREST COOLING CENTER.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS.
TAKE EXTRA PRECAUTIONS WHEN OUTSIDE. WEAR LIGHTWEIGHT AND LOOSE
FITTING CLOTHING. TRY TO LIMIT STRENUOUS ACTIVITIES TO EARLY MORNING
OR EVENING. TAKE ACTION WHEN YOU SEE SYMPTOMS OF HEAT EXHAUSTION AND
HEAT STROKE.
ILZ003>006-008-010>013-019>021-023-032-033-039-106>108-INZ001-002-
010-011-019-240115-
/O.CON.KLOT.HT.Y.0001.000000T0000Z-250624T0500Z/
WINNEBAGO-BOONE-MCHENRY-LAKE IL-OGLE-LEE-DE KALB-KANE-DUPAGE-LA
SALLE-KENDALL-GRUNDY-KANKAKEE-LIVINGSTON-IROQUOIS-FORD-NORTHERN
WILL-SOUTHERN WILL-EASTERN WILL-LAKE IN-PORTER-NEWTON-JASPER-
BENTON-
INCLUDING THE CITIES OF PLAINFIELD, ROSELAWN, CRYSTAL LAKE,
PONTIAC, MOKENA, OSWEGO, GIBSON CITY, BUFFALO GROVE, GARY,
ROCHELLE, ELGIN, MERRILLVILLE, MENDOTA, BEECHER, BRADLEY,
MUNDELEIN, WATSEKA, GILMAN, ROCKFORD, ALGONQUIN, BYRON, KENTLAND,
SYCAMORE, AURORA, CHANNAHON, MCHENRY, GURNEE, YORKVILLE, JOLIET,
OREGON, WILMINGTON, OXFORD, MINOOKA, FAIRBURY, PAXTON, FOWLER,
MORRIS, WAUKEGAN, STREATOR, COAL CITY, KANKAKEE, BOLINGBROOK,
PEOTONE, HAMMOND, VALPARAISO, CRETE, NAPERVILLE, MARSEILLES,
DEKALB, MOROCCO, MANHATTAN, DWIGHT, WHEATON, CAROL STREAM, PLANO,
LOMBARD, OTTAWA, BOURBONNAIS, DEMOTTE, RENSSELAER, BELVIDERE,
PORTAGE, WOODSTOCK, DOWNERS GROVE, CHESTERTON, LA SALLE, AND
DIXON
1012 AM CDT MON JUN 23 2025 /1112 AM EDT MON JUN 23 2025/
...HEAT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CDT /1 AM EDT/
TONIGHT...
* WHAT...PEAK AFTERNOON HEAT INDICES OF 100 TO 105 DEGREES EXPECTED.
* WHERE...PORTIONS OF CENTRAL, EAST CENTRAL, NORTH CENTRAL, AND
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.
* WHEN...UNTIL MIDNIGHT CDT /1 AM EDT/ TONIGHT.
* IMPACTS...HOT TEMPERATURES AND HIGH HUMIDITY MAY CAUSE HEAT
ILLNESSES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS.
DK
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