609
WWUS73 KLOT 282141
NPWLOT
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
441 PM CDT SUN JUN 28 2026
ILZ103-104-290745-
/O.NEW.KLOT.WI.Y.0009.260628T2141Z-260629T0100Z/
/O.CON.KLOT.XH.W.0001.260629T1700Z-260702T0300Z/
NORTHERN COOK-CENTRAL COOK-
INCLUDING THE CITIES OF NORTHBROOK, CICERO, DES PLAINES, CHICAGO,
OAK PARK, OAK LAWN, LA GRANGE, EVANSTON, SCHAUMBURG, AND PALATINE
441 PM CDT SUN JUN 28 2026
..WIND ADVISORY IN EFFECT UNTIL 8 PM CDT THIS EVENING
...EXTREME HEAT WARNING REMAINS IN EFFECT FROM NOON MONDAY TO 10 PM
CDT WEDNESDAY...
* WHAT...FOR THE WIND ADVISORY, SOUTHEAST WINDS GUSTS 45 TO 55 MPH.
FOR THE EXTREME HEAT WARNING, DANGEROUSLY HOT CONDITIONS WITH HEAT
INDEX VALUES UP TO 105 EXPECTED.
* WHERE...CENTRAL COOK AND NORTHERN COOK COUNTIES.
* WHEN...FOR THE WIND ADVISORY, UNTIL 8 PM CDT THIS EVENING. FOR THE
EXTREME HEAT WARNING, FROM NOON MONDAY TO 10 PM CDT WEDNESDAY.
* IMPACTS...GUSTY WINDS WILL BLOW AROUND UNSECURED OBJECTS. TREE
LIMBS COULD BE BLOWN DOWN AND A FEW POWER OUTAGES MAY RESULT. HEAT
RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING EXTREME HEAT AND
HIGH HUMIDITY EVENTS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT, ESPECIALLY FOR HIGH
PROFILE VEHICLES. USE EXTRA CAUTION.
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS.
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.
ILZ105-290745-
/O.CON.KLOT.XH.W.0001.260629T1700Z-260702T0300Z/
SOUTHERN COOK-
INCLUDING THE CITIES OF PARK FOREST, OAK FOREST, LEMONT, CALUMET
CITY, AND ORLAND PARK
441 PM CDT SUN JUN 28 2026
...EXTREME HEAT WARNING REMAINS IN EFFECT FROM NOON MONDAY TO 10 PM
CDT WEDNESDAY...
* WHAT...DANGEROUSLY HOT CONDITIONS WITH HEAT INDEX VALUES AROUND
105 EXPECTED EACH AFTERNOON.
* WHERE...SOUTHERN COOK COUNTY.
* WHEN...FROM NOON MONDAY TO 10 PM CDT WEDNESDAY.
* IMPACTS...HEAT RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING
EXTREME HEAT AND HIGH HUMIDITY EVENTS.
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.
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.
ILZ005-006-012-013-290745-
/O.NEW.KLOT.WI.Y.0009.260628T2141Z-260629T0100Z/
/O.CON.KLOT.HT.Y.0001.260629T1700Z-260702T0300Z/
MCHENRY-LAKE IL-KANE-DUPAGE-
INCLUDING THE CITIES OF ELGIN, GURNEE, MUNDELEIN, BUFFALO GROVE,
WAUKEGAN, WHEATON, DOWNERS GROVE, MCHENRY, AURORA, NAPERVILLE,
ALGONQUIN, WOODSTOCK, LOMBARD, CAROL STREAM, AND CRYSTAL LAKE
441 PM CDT SUN JUN 28 2026
..WIND ADVISORY IN EFFECT UNTIL 8 PM CDT THIS EVENING
...HEAT ADVISORY REMAINS IN EFFECT FROM NOON MONDAY TO 10 PM CDT
WEDNESDAY...
* WHAT...FOR THE WIND ADVISORY, SOUTHEAST WIND GUSTS UP TO 45 TO 55
MPH. FOR THE HEAT ADVISORY, HEAT INDEX VALUES AROUND 105 EXPECTED.
* WHERE...DUPAGE, KANE, LAKE IL, AND MCHENRY COUNTIES.
* WHEN...FOR THE WIND ADVISORY, UNTIL 8 PM CDT THIS EVENING. FOR THE
HEAT ADVISORY, FROM NOON MONDAY TO 10 PM CDT WEDNESDAY.
* IMPACTS...GUSTY WINDS WILL BLOW AROUND UNSECURED OBJECTS. TREE
LIMBS COULD BE BLOWN DOWN AND A FEW POWER OUTAGES MAY RESULT. HOT
TEMPERATURES AND HIGH HUMIDITY MAY CAUSE HEAT ILLNESSES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT, ESPECIALLY FOR HIGH
PROFILE VEHICLES. USE EXTRA CAUTION.
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS.
ILZ003-004-008-010-011-019>021-023-032-033-039-106>108-INZ001-002-
010-011-019-290745-
/O.CON.KLOT.HT.Y.0001.260629T1700Z-260702T0300Z/
WINNEBAGO-BOONE-OGLE-LEE-DE KALB-LA SALLE-KENDALL-GRUNDY-KANKAKEE-
LIVINGSTON-IROQUOIS-FORD-NORTHERN WILL-SOUTHERN WILL-EASTERN WILL-
LAKE IN-PORTER-NEWTON-JASPER-BENTON-
INCLUDING THE CITIES OF JOLIET, ROSELAWN, MINOOKA, BEECHER,
STREATOR, MORRIS, CHANNAHON, MARSEILLES, PAXTON, MENDOTA,
WATSEKA, GILMAN, DEMOTTE, VALPARAISO, PLANO, BELVIDERE, PEOTONE,
BOURBONNAIS, PORTAGE, OSWEGO, PLAINFIELD, CHESTERTON, OTTAWA,
ROCKFORD, DWIGHT, DIXON, OXFORD, MERRILLVILLE, LA SALLE, CRETE,
GARY, FOWLER, BYRON, FAIRBURY, MANHATTAN, KENTLAND, MOKENA,
PONTIAC, ROCHELLE, SYCAMORE, DEKALB, RENSSELAER, OREGON, COAL
CITY, KANKAKEE, BRADLEY, GIBSON CITY, BOLINGBROOK, WILMINGTON,
HAMMOND, YORKVILLE, AND MOROCCO
441 PM CDT SUN JUN 28 2026 /541 PM EDT SUN JUN 28 2026/
...HEAT ADVISORY REMAINS IN EFFECT FROM NOON CDT /1 PM EDT/ MONDAY
TO 10 PM CDT /11 PM EDT/ WEDNESDAY...
* WHAT...HEAT INDEX VALUES AROUND 105 EXPECTED EACH AFTERNOON
* WHERE...PORTIONS OF CENTRAL, EAST CENTRAL, NORTH CENTRAL, AND
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.
* WHEN...FROM NOON CDT /1 PM EDT/ MONDAY TO 10 PM CDT /11 PM EDT/
WEDNESDAY.
* 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.
CARLAW
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