025
WWUS73 KLOT 231359
NPWLOT
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
859 AM CDT THU OCT 23 2025
ILZ003-004-008-010-011-019-021-023-032-033-039-240000-
/O.EXP.KLOT.FR.Y.0003.000000T0000Z-251023T1400Z/
/O.CON.KLOT.FZ.W.0001.251024T0600Z-251024T1300Z/
WINNEBAGO-BOONE-OGLE-LEE-DE KALB-LA SALLE-GRUNDY-KANKAKEE-
LIVINGSTON-IROQUOIS-FORD-
INCLUDING THE CITIES OF DWIGHT, DEKALB, OTTAWA, BOURBONNAIS,
PONTIAC, MORRIS, MARSEILLES, OREGON, ROCKFORD, FAIRBURY, LA
SALLE, MINOOKA, COAL CITY, BYRON, BELVIDERE, ROCHELLE, DIXON,
BRADLEY, STREATOR, WATSEKA, GILMAN, KANKAKEE, MENDOTA, PAXTON,
SYCAMORE, AND GIBSON CITY
859 AM CDT THU OCT 23 2025
..FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 8 AM CDT FRIDAY
* WHAT...SUB-FREEZING TEMPERATURES AS LOW AS 27 EXPECTED.
* WHERE...LIVINGSTON, FORD, IROQUOIS, BOONE, DE KALB, LA SALLE, LEE,
OGLE, WINNEBAGO, GRUNDY, AND KANKAKEE COUNTIES.
* WHEN...FROM 1 AM TO 8 AM CDT FRIDAY.
* IMPACTS...FROST AND FREEZE CONDITIONS COULD KILL CROPS, OTHER
SENSITIVE VEGETATION AND POSSIBLY DAMAGE UNPROTECTED OUTDOOR
PLUMBING. FROST COULD HARM SENSITIVE OUTDOOR VEGETATION. SENSITIVE
OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE STEPS NOW TO PROTECT TENDER PLANTS FROM THE COLD.
ILZ005-012-013-020-106>108-INZ010-011-019-240000-
/O.CON.KLOT.FZ.W.0001.251024T0600Z-251024T1300Z/
MCHENRY-KANE-DUPAGE-KENDALL-NORTHERN WILL-SOUTHERN WILL-EASTERN
WILL-NEWTON-JASPER-BENTON-
INCLUDING THE CITIES OF DOWNERS GROVE, DEMOTTE, ELGIN, YORKVILLE,
NAPERVILLE, WILMINGTON, ALGONQUIN, MCHENRY, MOROCCO, MANHATTAN,
JOLIET, BEECHER, OSWEGO, PLAINFIELD, WHEATON, AURORA, PLANO,
BOLINGBROOK, MOKENA, WOODSTOCK, RENSSELAER, CHANNAHON, CAROL
STREAM, LOMBARD, PEOTONE, FOWLER, CRETE, OXFORD, CRYSTAL LAKE,
ROSELAWN, AND KENTLAND
859 AM CDT THU OCT 23 2025 /959 AM EDT THU OCT 23 2025/
...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM CDT /2 AM EDT/ TO 8 AM
CDT /9 AM EDT/ FRIDAY...
* WHAT...SUB-FREEZING TEMPERATURES AS LOW AS 28 EXPECTED.
* WHERE...IN ILLINOIS, DUPAGE, EASTERN WILL, KANE, KENDALL, MCHENRY,
NORTHERN WILL, AND SOUTHERN WILL COUNTIES. IN INDIANA, BENTON,
JASPER, AND NEWTON COUNTIES.
* WHEN...FROM 1 AM CDT /2 AM EDT/ TO 8 AM CDT /9 AM EDT/ FRIDAY.
* IMPACTS...FROST AND FREEZE CONDITIONS COULD KILL CROPS, OTHER
SENSITIVE VEGETATION AND POSSIBLY DAMAGE UNPROTECTED OUTDOOR
PLUMBING.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE STEPS NOW TO PROTECT TENDER PLANTS FROM THE COLD.
ILZ006-103-INZ001-240000-
/O.CON.KLOT.FZ.W.0001.251024T0600Z-251024T1300Z/
LAKE IL-NORTHERN COOK-LAKE IN-
INCLUDING THE CITIES OF NORTHBROOK, EVANSTON, GURNEE,
MERRILLVILLE, PALATINE, GARY, BUFFALO GROVE, MUNDELEIN, DES
PLAINES, WAUKEGAN, SCHAUMBURG, AND HAMMOND
859 AM CDT THU OCT 23 2025
..FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 8 AM CDT FRIDAY
* WHAT...SUB-FREEZING TEMPERATURES AS LOW AS 30 EXPECTED AWAY FROM
LAKE MICHIGAN.
* WHERE...IN ILLINOIS, LAKE IL AND NORTHERN COOK COUNTIES. IN
INDIANA, LAKE IN COUNTY.
* WHEN...FROM 1 AM TO 8 AM CDT FRIDAY.
* IMPACTS...FROST AND FREEZE CONDITIONS COULD KILL CROPS, OTHER
SENSITIVE VEGETATION AND POSSIBLY DAMAGE UNPROTECTED OUTDOOR
PLUMBING.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE STEPS NOW TO PROTECT TENDER PLANTS FROM THE COLD.
ILZ105-INZ002-240000-
/O.CON.KLOT.FR.Y.0004.251024T0600Z-251024T1300Z/
SOUTHERN COOK-PORTER-
INCLUDING THE CITIES OF CALUMET CITY, LEMONT, PORTAGE,
CHESTERTON, PARK FOREST, OAK FOREST, ORLAND PARK, AND VALPARAISO
859 AM CDT THU OCT 23 2025
..FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 8 AM CDT FRIDAY
* WHAT...TEMPERATURES AS LOW AS 30 WILL RESULT IN FROST FORMATION
AWAY FROM LAKE MICHIGAN.
* WHERE...IN ILLINOIS, SOUTHERN COOK COUNTY. IN INDIANA, PORTER
COUNTY.
* WHEN...FROM 1 AM TO 8 AM CDT FRIDAY.
* IMPACTS...FROST COULD HARM SENSITIVE OUTDOOR VEGETATION. SENSITIVE
OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE STEPS NOW TO PROTECT TENDER PLANTS FROM THE COLD.
DK
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