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Winter Weather Advisory 0009
Issued by the Chicago Forecast Office

Action Issued Starts Expiration
New 2025-12-01 01:54:40 2025-12-01 14:00:00 2025-12-02 00:00:00
New 2025-12-01 01:54:40 2025-12-01 16:00:00 2025-12-02 03:00:00
Continued 2025-12-01 11:03:47 2025-12-01 14:00:00 2025-12-02 00:00:00
Continued 2025-12-01 11:03:47 2025-12-01 16:00:00 2025-12-02 03:00:00
Continued 2025-12-01 14:31:22 2025-12-02 00:00:00
Continued 2025-12-01 14:31:22 2025-12-01 16:00:00 2025-12-02 03:00:00
Continued 2025-12-01 20:37:02 2025-12-02 03:00:00
Continued 2025-12-01 20:37:02 2025-12-02 00:00:00
Continued 2025-12-02 00:06:08 2025-12-02 03:00:00
Expired 2025-12-02 00:06:08 2025-12-02 00:00:00
Expired 2025-12-02 03:03:42 2025-12-02 03:00:00


Action: New
Issued At: 2025-12-01 01:54:40

968 
WWUS43 KLOT 010754
WSWLOT

URGENT - WINTER WEATHER MESSAGE
National Weather Service Chicago IL
154 AM CST Mon Dec 1 2025

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-011800-
/O.NEW.KLOT.WW.Y.0009.251201T2000Z-251202T0600Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-La
Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-Northern
Cook-Central Cook-Southern Cook-Northern Will-Southern Will-
Eastern Will-
Including the cities of Pontiac, Paxton, Bradley, La Grange,
Elgin, Marseilles, Oswego, Dixon, Watseka, Channahon, Dwight,
Peotone, Rockford, Streator, Buffalo Grove, Fairbury, Carol
Stream, Cicero, Joliet, Rochelle, La Salle, Orland Park, Gurnee,
Gilman, Mendota, Algonquin, Gibson City, Calumet City, Downers
Grove, Oregon, Lombard, Park Forest, Chicago, Bourbonnais,
Waukegan, Mundelein, Coal City, Bolingbrook, Palatine, Crete, Des
Plaines, Oak Forest, Wheaton, Schaumburg, Crystal Lake, Ottawa,
Beecher, Byron, Plano, Mokena, Lemont, Manhattan, Aurora,
Kankakee, Morris, Oak Lawn, Plainfield, Yorkville, DeKalb,
Woodstock, Belvidere, Naperville, Northbrook, Sycamore, McHenry,
Wilmington, Oak Park, Evanston, and Minooka
154 AM CST Mon Dec 1 2025

...WINTER WEATHER ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 
MIDNIGHT CST TONIGHT...

* WHAT...Snow expected. Total snow accumulations between 2 and 4 
  inches with locally higher amounts possible south of Interstate 80.

* WHERE...Portions of central, east central, north central, and 
  northeast Illinois.

* WHEN...From 2 PM this afternoon to midnight CST tonight.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the Monday evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for Illinois can be obtained at 
www.gettingaroundillinois.com.

&&

$$

INZ001-002-010-011-019-011800-
/O.NEW.KLOT.WW.Y.0009.251201T2200Z-251202T0900Z/
Lake IN-Porter-Newton-Jasper-Benton-
Including the cities of Morocco, Portage, Gary, Fowler,
Merrillville, Chesterton, Kentland, Roselawn, DeMotte,
Valparaiso, Oxford, Rensselaer, and Hammond
154 AM CST Mon Dec 1 2025 /254 AM EST Mon Dec 1 2025/

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 PM CST /5 PM EST/ THIS 
AFTERNOON TO 3 AM CST /4 AM EST/ TUESDAY...

* WHAT...Snow expected. Total snow accumulations between 2 and 4 
  inches with locally higher amounts possible.

* WHERE...Benton, Jasper, Lake IN, Newton, and Porter Counties.

* WHEN...From 4 PM CST /5 PM EST/ this afternoon to 3 AM CST /4 AM 
  EST/ Tuesday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the Monday evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for Indiana can be obtained at https://511in.org.

&&

$$


Action: New
Issued At: 2025-12-01 01:54:40

968 
WWUS43 KLOT 010754
WSWLOT

URGENT - WINTER WEATHER MESSAGE
National Weather Service Chicago IL
154 AM CST Mon Dec 1 2025

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-011800-
/O.NEW.KLOT.WW.Y.0009.251201T2000Z-251202T0600Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-La
Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-Northern
Cook-Central Cook-Southern Cook-Northern Will-Southern Will-
Eastern Will-
Including the cities of Pontiac, Paxton, Bradley, La Grange,
Elgin, Marseilles, Oswego, Dixon, Watseka, Channahon, Dwight,
Peotone, Rockford, Streator, Buffalo Grove, Fairbury, Carol
Stream, Cicero, Joliet, Rochelle, La Salle, Orland Park, Gurnee,
Gilman, Mendota, Algonquin, Gibson City, Calumet City, Downers
Grove, Oregon, Lombard, Park Forest, Chicago, Bourbonnais,
Waukegan, Mundelein, Coal City, Bolingbrook, Palatine, Crete, Des
Plaines, Oak Forest, Wheaton, Schaumburg, Crystal Lake, Ottawa,
Beecher, Byron, Plano, Mokena, Lemont, Manhattan, Aurora,
Kankakee, Morris, Oak Lawn, Plainfield, Yorkville, DeKalb,
Woodstock, Belvidere, Naperville, Northbrook, Sycamore, McHenry,
Wilmington, Oak Park, Evanston, and Minooka
154 AM CST Mon Dec 1 2025

...WINTER WEATHER ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 
MIDNIGHT CST TONIGHT...

* WHAT...Snow expected. Total snow accumulations between 2 and 4 
  inches with locally higher amounts possible south of Interstate 80.

* WHERE...Portions of central, east central, north central, and 
  northeast Illinois.

* WHEN...From 2 PM this afternoon to midnight CST tonight.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the Monday evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for Illinois can be obtained at 
www.gettingaroundillinois.com.

&&

$$

INZ001-002-010-011-019-011800-
/O.NEW.KLOT.WW.Y.0009.251201T2200Z-251202T0900Z/
Lake IN-Porter-Newton-Jasper-Benton-
Including the cities of Morocco, Portage, Gary, Fowler,
Merrillville, Chesterton, Kentland, Roselawn, DeMotte,
Valparaiso, Oxford, Rensselaer, and Hammond
154 AM CST Mon Dec 1 2025 /254 AM EST Mon Dec 1 2025/

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 PM CST /5 PM EST/ THIS 
AFTERNOON TO 3 AM CST /4 AM EST/ TUESDAY...

* WHAT...Snow expected. Total snow accumulations between 2 and 4 
  inches with locally higher amounts possible.

* WHERE...Benton, Jasper, Lake IN, Newton, and Porter Counties.

* WHEN...From 4 PM CST /5 PM EST/ this afternoon to 3 AM CST /4 AM 
  EST/ Tuesday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the Monday evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for Indiana can be obtained at https://511in.org.

&&

$$


Action: Continued
Issued At: 2025-12-01 11:03:47

748 
WWUS43 KLOT 011703
WSWLOT

URGENT - WINTER WEATHER MESSAGE
National Weather Service Chicago IL
1103 AM CST Mon Dec 1 2025

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-020315-
/O.CON.KLOT.WW.Y.0009.251201T2000Z-251202T0600Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-La
Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-Northern
Cook-Central Cook-Southern Cook-Northern Will-Southern Will-
Eastern Will-
Including the cities of Plainfield, DeKalb, La Grange, Elgin,
Schaumburg, Naperville, Minooka, Buffalo Grove, Pontiac, Oswego,
Gibson City, Woodstock, Crystal Lake, Channahon, Rockford, Byron,
Cicero, Lemont, Carol Stream, Dwight, Paxton, Fairbury, Watseka,
Rochelle, Sycamore, Wheaton, Downers Grove, Coal City, Yorkville,
Palatine, Streator, Bradley, Bolingbrook, Mokena, Wilmington,
Crete, McHenry, Lombard, Waukegan, Peotone, La Salle, Beecher,
Dixon, Oak Lawn, Park Forest, Algonquin, Belvidere, Ottawa,
Marseilles, Oregon, Kankakee, Calumet City, Oak Forest,
Manhattan, Bourbonnais, Evanston, Mendota, Northbrook, Mundelein,
Plano, Des Plaines, Joliet, Orland Park, Gilman, Gurnee, Aurora,
Chicago, Oak Park, and Morris
1103 AM CST Mon Dec 1 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 2 PM THIS 
AFTERNOON TO MIDNIGHT CST TONIGHT...

* WHAT...Snow and winter driving conditions expected. Total snow 
  accumulations between 1 and 4 inches, with the highest amounts 
  generally near and south of the Kankakee River.

* WHERE...Portions of central, east central, north central, and 
  northeast Illinois.

* WHEN...From 2 PM this afternoon to midnight CST tonight.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions will likely impact the evening commute today.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for Illinois can be obtained at 
www.gettingaroundillinois.com.

&&

$$

INZ001-002-010-011-019-020315-
/O.CON.KLOT.WW.Y.0009.251201T2200Z-251202T0900Z/
Lake IN-Porter-Newton-Jasper-Benton-
Including the cities of Roselawn, Portage, Morocco, Oxford,
Fowler, Merrillville, Gary, DeMotte, Chesterton, Rensselaer,
Hammond, Kentland, and Valparaiso
1103 AM CST Mon Dec 1 2025 /1203 PM EST Mon Dec 1 2025/

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 PM CST /5 PM 
EST/ THIS AFTERNOON TO 3 AM CST /4 AM EST/ TUESDAY...

* WHAT...Snow and winter driving conditions expected. Total snow 
  accumulations between 1 and 4 inches, with the highest amounts 
  generally near and south of the Kankakee River.

* WHERE...Benton, Jasper, Lake IN, Newton, and Porter Counties.

* WHEN...From 4 PM CST /5 PM EST/ this afternoon to 3 AM CST /4 AM 
  EST/ Tuesday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions will likely impact the evening commute today.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for Indiana can be obtained at https://511in.org.

&&

$$

RC


Action: Continued
Issued At: 2025-12-01 11:03:47

748 
WWUS43 KLOT 011703
WSWLOT

URGENT - WINTER WEATHER MESSAGE
National Weather Service Chicago IL
1103 AM CST Mon Dec 1 2025

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-020315-
/O.CON.KLOT.WW.Y.0009.251201T2000Z-251202T0600Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-La
Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-Northern
Cook-Central Cook-Southern Cook-Northern Will-Southern Will-
Eastern Will-
Including the cities of Plainfield, DeKalb, La Grange, Elgin,
Schaumburg, Naperville, Minooka, Buffalo Grove, Pontiac, Oswego,
Gibson City, Woodstock, Crystal Lake, Channahon, Rockford, Byron,
Cicero, Lemont, Carol Stream, Dwight, Paxton, Fairbury, Watseka,
Rochelle, Sycamore, Wheaton, Downers Grove, Coal City, Yorkville,
Palatine, Streator, Bradley, Bolingbrook, Mokena, Wilmington,
Crete, McHenry, Lombard, Waukegan, Peotone, La Salle, Beecher,
Dixon, Oak Lawn, Park Forest, Algonquin, Belvidere, Ottawa,
Marseilles, Oregon, Kankakee, Calumet City, Oak Forest,
Manhattan, Bourbonnais, Evanston, Mendota, Northbrook, Mundelein,
Plano, Des Plaines, Joliet, Orland Park, Gilman, Gurnee, Aurora,
Chicago, Oak Park, and Morris
1103 AM CST Mon Dec 1 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 2 PM THIS 
AFTERNOON TO MIDNIGHT CST TONIGHT...

* WHAT...Snow and winter driving conditions expected. Total snow 
  accumulations between 1 and 4 inches, with the highest amounts 
  generally near and south of the Kankakee River.

* WHERE...Portions of central, east central, north central, and 
  northeast Illinois.

* WHEN...From 2 PM this afternoon to midnight CST tonight.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions will likely impact the evening commute today.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for Illinois can be obtained at 
www.gettingaroundillinois.com.

&&

$$

INZ001-002-010-011-019-020315-
/O.CON.KLOT.WW.Y.0009.251201T2200Z-251202T0900Z/
Lake IN-Porter-Newton-Jasper-Benton-
Including the cities of Roselawn, Portage, Morocco, Oxford,
Fowler, Merrillville, Gary, DeMotte, Chesterton, Rensselaer,
Hammond, Kentland, and Valparaiso
1103 AM CST Mon Dec 1 2025 /1203 PM EST Mon Dec 1 2025/

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 PM CST /5 PM 
EST/ THIS AFTERNOON TO 3 AM CST /4 AM EST/ TUESDAY...

* WHAT...Snow and winter driving conditions expected. Total snow 
  accumulations between 1 and 4 inches, with the highest amounts 
  generally near and south of the Kankakee River.

* WHERE...Benton, Jasper, Lake IN, Newton, and Porter Counties.

* WHEN...From 4 PM CST /5 PM EST/ this afternoon to 3 AM CST /4 AM 
  EST/ Tuesday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions will likely impact the evening commute today.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for Indiana can be obtained at https://511in.org.

&&

$$

RC


Action: Continued
Issued At: 2025-12-01 14:31:22

430 
WWUS43 KLOT 012031
WSWLOT

URGENT - WINTER WEATHER MESSAGE
National Weather Service Chicago IL
231 PM CST Mon Dec 1 2025

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-020600-
/O.CON.KLOT.WW.Y.0009.000000T0000Z-251202T0600Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-La
Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-Northern
Cook-Central Cook-Southern Cook-Northern Will-Southern Will-
Eastern Will-
Including the cities of Plainfield, DeKalb, La Grange, Elgin,
Schaumburg, Naperville, Minooka, Buffalo Grove, Pontiac, Oswego,
Gibson City, Woodstock, Crystal Lake, Channahon, Rockford, Byron,
Cicero, Lemont, Carol Stream, Dwight, Paxton, Fairbury, Watseka,
Rochelle, Sycamore, Wheaton, Downers Grove, Coal City, Yorkville,
Palatine, Streator, Bradley, Bolingbrook, Mokena, Wilmington,
Crete, McHenry, Lombard, Waukegan, Peotone, La Salle, Beecher,
Dixon, Oak Lawn, Park Forest, Algonquin, Belvidere, Ottawa,
Marseilles, Oregon, Kankakee, Calumet City, Oak Forest,
Manhattan, Bourbonnais, Evanston, Mendota, Northbrook, Mundelein,
Plano, Des Plaines, Joliet, Orland Park, Gilman, Gurnee, Aurora,
Chicago, Oak Park, and Morris
231 PM CST Mon Dec 1 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST 
TONIGHT...

* WHAT...Snow and winter driving conditions occurring. Total snow 
  accumulations between 1 and 4 inches, highest south of the 
  Kankakee River Valley.

* WHERE...Portions of central, east central, north central, and 
  northeast Illinois.

* WHEN...Until midnight CST tonight.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions will impact the evening commute today.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for Illinois can be obtained at 
www.gettingaroundillinois.com.

&&

$$

INZ001-002-010-011-019-020645-
/O.CON.KLOT.WW.Y.0009.251201T2200Z-251202T0900Z/
Lake IN-Porter-Newton-Jasper-Benton-
Including the cities of Roselawn, Portage, Morocco, Oxford,
Fowler, Merrillville, Gary, DeMotte, Chesterton, Rensselaer,
Hammond, Kentland, and Valparaiso
231 PM CST Mon Dec 1 2025 /331 PM EST Mon Dec 1 2025/

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 AM CST /4 AM 
EST/ TUESDAY...

* WHAT...Snow and winter driving conditions occurring. Total snow 
  accumulations between 1 and 4 inches, highest south of the 
  Kankakee River Valley.

* WHERE...Benton, Jasper, Lake IN, Newton, and Porter Counties.

* WHEN...Until 3 AM CST /4 AM EST/ Tuesday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions will impact the evening commute today.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for Indiana can be obtained at https://511in.org.

&&

$$

RC


Action: Continued
Issued At: 2025-12-01 14:31:22

430 
WWUS43 KLOT 012031
WSWLOT

URGENT - WINTER WEATHER MESSAGE
National Weather Service Chicago IL
231 PM CST Mon Dec 1 2025

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-020600-
/O.CON.KLOT.WW.Y.0009.000000T0000Z-251202T0600Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-La
Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-Northern
Cook-Central Cook-Southern Cook-Northern Will-Southern Will-
Eastern Will-
Including the cities of Plainfield, DeKalb, La Grange, Elgin,
Schaumburg, Naperville, Minooka, Buffalo Grove, Pontiac, Oswego,
Gibson City, Woodstock, Crystal Lake, Channahon, Rockford, Byron,
Cicero, Lemont, Carol Stream, Dwight, Paxton, Fairbury, Watseka,
Rochelle, Sycamore, Wheaton, Downers Grove, Coal City, Yorkville,
Palatine, Streator, Bradley, Bolingbrook, Mokena, Wilmington,
Crete, McHenry, Lombard, Waukegan, Peotone, La Salle, Beecher,
Dixon, Oak Lawn, Park Forest, Algonquin, Belvidere, Ottawa,
Marseilles, Oregon, Kankakee, Calumet City, Oak Forest,
Manhattan, Bourbonnais, Evanston, Mendota, Northbrook, Mundelein,
Plano, Des Plaines, Joliet, Orland Park, Gilman, Gurnee, Aurora,
Chicago, Oak Park, and Morris
231 PM CST Mon Dec 1 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST 
TONIGHT...

* WHAT...Snow and winter driving conditions occurring. Total snow 
  accumulations between 1 and 4 inches, highest south of the 
  Kankakee River Valley.

* WHERE...Portions of central, east central, north central, and 
  northeast Illinois.

* WHEN...Until midnight CST tonight.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions will impact the evening commute today.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for Illinois can be obtained at 
www.gettingaroundillinois.com.

&&

$$

INZ001-002-010-011-019-020645-
/O.CON.KLOT.WW.Y.0009.251201T2200Z-251202T0900Z/
Lake IN-Porter-Newton-Jasper-Benton-
Including the cities of Roselawn, Portage, Morocco, Oxford,
Fowler, Merrillville, Gary, DeMotte, Chesterton, Rensselaer,
Hammond, Kentland, and Valparaiso
231 PM CST Mon Dec 1 2025 /331 PM EST Mon Dec 1 2025/

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 AM CST /4 AM 
EST/ TUESDAY...

* WHAT...Snow and winter driving conditions occurring. Total snow 
  accumulations between 1 and 4 inches, highest south of the 
  Kankakee River Valley.

* WHERE...Benton, Jasper, Lake IN, Newton, and Porter Counties.

* WHEN...Until 3 AM CST /4 AM EST/ Tuesday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions will impact the evening commute today.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for Indiana can be obtained at https://511in.org.

&&

$$

RC


Action: Continued
Issued At: 2025-12-01 20:37:02

753 
WWUS43 KLOT 020236
WSWLOT

URGENT - WINTER WEATHER MESSAGE
National Weather Service Chicago IL
836 PM CST Mon Dec 1 2025

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-020600-
/O.CON.KLOT.WW.Y.0009.000000T0000Z-251202T0600Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-La
Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-Northern
Cook-Central Cook-Southern Cook-Northern Will-Southern Will-
Eastern Will-
Including the cities of Manhattan, Cicero, Plano, Schaumburg,
Belvidere, Lemont, DeKalb, Northbrook, Crystal Lake, Calumet
City, Chicago, Byron, Bourbonnais, Plainfield, Carol Stream,
Wheaton, Oak Park, Fairbury, Bolingbrook, Gibson City, Rockford,
Oak Lawn, La Salle, Yorkville, Park Forest, Aurora, Lombard,
Ottawa, Waukegan, Marseilles, Oswego, Mokena, Mendota, Peotone,
Gilman, Naperville, Bradley, Morris, Beecher, Wilmington, Downers
Grove, Dixon, Sycamore, Coal City, Orland Park, La Grange,
Paxton, Rochelle, Channahon, Pontiac, Gurnee, Watseka, Crete,
McHenry, Streator, Algonquin, Woodstock, Elgin, Kankakee,
Evanston, Buffalo Grove, Palatine, Dwight, Joliet, Des Plaines,
Oregon, Minooka, Oak Forest, and Mundelein
836 PM CST Mon Dec 1 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST 
TONIGHT...

* WHAT...Snow and winter driving conditions occurring. Total snow 
  accumulations between 1 and 4 inches, highest south of the 
  Kankakee River Valley.

* WHERE...Portions of central, east central, north central, and 
  northeast Illinois.

* WHEN...Until midnight CST tonight.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for Illinois can be obtained at 
www.gettingaroundillinois.com.

&&

$$

INZ001-002-010-011-019-020900-
/O.CON.KLOT.WW.Y.0009.000000T0000Z-251202T0900Z/
Lake IN-Porter-Newton-Jasper-Benton-
Including the cities of Merrillville, Chesterton, Roselawn,
DeMotte, Gary, Fowler, Hammond, Kentland, Portage, Rensselaer,
Morocco, Valparaiso, and Oxford
836 PM CST Mon Dec 1 2025 /936 PM EST Mon Dec 1 2025/

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 AM CST /4 AM 
EST/ TUESDAY...

* WHAT...Snow and winter driving conditions occurring. Total snow 
  accumulations between 1 and 4 inches, highest south of the 
  Kankakee River Valley.

* WHERE...Benton, Jasper, Lake IN, Newton, and Porter Counties.

* WHEN...Until 3 AM CST /4 AM EST/ Tuesday.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for Indiana can be obtained at https://511in.org.

&&

$$

Petr


Action: Continued
Issued At: 2025-12-01 20:37:02

753 
WWUS43 KLOT 020236
WSWLOT

URGENT - WINTER WEATHER MESSAGE
National Weather Service Chicago IL
836 PM CST Mon Dec 1 2025

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-020600-
/O.CON.KLOT.WW.Y.0009.000000T0000Z-251202T0600Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-La
Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-Northern
Cook-Central Cook-Southern Cook-Northern Will-Southern Will-
Eastern Will-
Including the cities of Manhattan, Cicero, Plano, Schaumburg,
Belvidere, Lemont, DeKalb, Northbrook, Crystal Lake, Calumet
City, Chicago, Byron, Bourbonnais, Plainfield, Carol Stream,
Wheaton, Oak Park, Fairbury, Bolingbrook, Gibson City, Rockford,
Oak Lawn, La Salle, Yorkville, Park Forest, Aurora, Lombard,
Ottawa, Waukegan, Marseilles, Oswego, Mokena, Mendota, Peotone,
Gilman, Naperville, Bradley, Morris, Beecher, Wilmington, Downers
Grove, Dixon, Sycamore, Coal City, Orland Park, La Grange,
Paxton, Rochelle, Channahon, Pontiac, Gurnee, Watseka, Crete,
McHenry, Streator, Algonquin, Woodstock, Elgin, Kankakee,
Evanston, Buffalo Grove, Palatine, Dwight, Joliet, Des Plaines,
Oregon, Minooka, Oak Forest, and Mundelein
836 PM CST Mon Dec 1 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST 
TONIGHT...

* WHAT...Snow and winter driving conditions occurring. Total snow 
  accumulations between 1 and 4 inches, highest south of the 
  Kankakee River Valley.

* WHERE...Portions of central, east central, north central, and 
  northeast Illinois.

* WHEN...Until midnight CST tonight.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for Illinois can be obtained at 
www.gettingaroundillinois.com.

&&

$$

INZ001-002-010-011-019-020900-
/O.CON.KLOT.WW.Y.0009.000000T0000Z-251202T0900Z/
Lake IN-Porter-Newton-Jasper-Benton-
Including the cities of Merrillville, Chesterton, Roselawn,
DeMotte, Gary, Fowler, Hammond, Kentland, Portage, Rensselaer,
Morocco, Valparaiso, and Oxford
836 PM CST Mon Dec 1 2025 /936 PM EST Mon Dec 1 2025/

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 AM CST /4 AM 
EST/ TUESDAY...

* WHAT...Snow and winter driving conditions occurring. Total snow 
  accumulations between 1 and 4 inches, highest south of the 
  Kankakee River Valley.

* WHERE...Benton, Jasper, Lake IN, Newton, and Porter Counties.

* WHEN...Until 3 AM CST /4 AM EST/ Tuesday.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for Indiana can be obtained at https://511in.org.

&&

$$

Petr


Action: Continued
Issued At: 2025-12-02 00:06:08

805 
WWUS43 KLOT 020605
WSWLOT

URGENT - WINTER WEATHER MESSAGE
National Weather Service Chicago IL
1205 AM CST Tue Dec 2 2025

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-020715-
/O.EXP.KLOT.WW.Y.0009.000000T0000Z-251202T0600Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-La
Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-Northern
Cook-Central Cook-Southern Cook-Northern Will-Southern Will-
Eastern Will-
Including the cities of Calumet City, Evanston, Sycamore,
Algonquin, Oregon, Aurora, Naperville, Streator, Marseilles,
Downers Grove, Carol Stream, Oswego, Rockford, Morris, Belvidere,
Dwight, Oak Lawn, Oak Forest, Wilmington, Rochelle, Fairbury,
Cicero, Plainfield, Mundelein, Bourbonnais, Des Plaines, La
Salle, McHenry, Kankakee, Joliet, Beecher, Peotone, Manhattan,
Oak Park, Yorkville, Channahon, Waukegan, Byron, Wheaton,
Bolingbrook, La Grange, Gibson City, Watseka, Orland Park,
Mendota, Dixon, Crete, Palatine, Woodstock, Crystal Lake, Coal
City, Minooka, Gilman, Buffalo Grove, Chicago, Gurnee, Ottawa,
Lemont, Lombard, Park Forest, Mokena, DeKalb, Elgin, Bradley,
Plano, Northbrook, Pontiac, Paxton, and Schaumburg
1205 AM CST Tue Dec 2 2025

...WINTER WEATHER ADVISORY HAS EXPIRED...

Light snow will end early this morning across northern Illinois. 
Untreated surfaces may remain snow covered and slippery.

$$

INZ001-002-010-011-019-020900-
/O.CON.KLOT.WW.Y.0009.000000T0000Z-251202T0900Z/
Lake IN-Porter-Newton-Jasper-Benton-
Including the cities of Chesterton, Oxford, Roselawn, Valparaiso,
Hammond, Rensselaer, Kentland, DeMotte, Portage, Morocco, Gary,
Fowler, and Merrillville
1205 AM CST Tue Dec 2 2025 /105 AM EST Tue Dec 2 2025/

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 AM CST /4 AM 
EST/ EARLY THIS MORNING...

* WHAT...Snow. Additional snow accumulations less than one inch.

* WHERE...Benton, Jasper, Lake IN, Newton, and Porter Counties.

* WHEN...Until 3 AM CST /4 AM EST/ early this morning.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for Indiana can be obtained at https://511in.org.

&&

$$


Action: Expired
Issued At: 2025-12-02 00:06:08

805 
WWUS43 KLOT 020605
WSWLOT

URGENT - WINTER WEATHER MESSAGE
National Weather Service Chicago IL
1205 AM CST Tue Dec 2 2025

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-020715-
/O.EXP.KLOT.WW.Y.0009.000000T0000Z-251202T0600Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-La
Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-Northern
Cook-Central Cook-Southern Cook-Northern Will-Southern Will-
Eastern Will-
Including the cities of Calumet City, Evanston, Sycamore,
Algonquin, Oregon, Aurora, Naperville, Streator, Marseilles,
Downers Grove, Carol Stream, Oswego, Rockford, Morris, Belvidere,
Dwight, Oak Lawn, Oak Forest, Wilmington, Rochelle, Fairbury,
Cicero, Plainfield, Mundelein, Bourbonnais, Des Plaines, La
Salle, McHenry, Kankakee, Joliet, Beecher, Peotone, Manhattan,
Oak Park, Yorkville, Channahon, Waukegan, Byron, Wheaton,
Bolingbrook, La Grange, Gibson City, Watseka, Orland Park,
Mendota, Dixon, Crete, Palatine, Woodstock, Crystal Lake, Coal
City, Minooka, Gilman, Buffalo Grove, Chicago, Gurnee, Ottawa,
Lemont, Lombard, Park Forest, Mokena, DeKalb, Elgin, Bradley,
Plano, Northbrook, Pontiac, Paxton, and Schaumburg
1205 AM CST Tue Dec 2 2025

...WINTER WEATHER ADVISORY HAS EXPIRED...

Light snow will end early this morning across northern Illinois. 
Untreated surfaces may remain snow covered and slippery.

$$

INZ001-002-010-011-019-020900-
/O.CON.KLOT.WW.Y.0009.000000T0000Z-251202T0900Z/
Lake IN-Porter-Newton-Jasper-Benton-
Including the cities of Chesterton, Oxford, Roselawn, Valparaiso,
Hammond, Rensselaer, Kentland, DeMotte, Portage, Morocco, Gary,
Fowler, and Merrillville
1205 AM CST Tue Dec 2 2025 /105 AM EST Tue Dec 2 2025/

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 AM CST /4 AM 
EST/ EARLY THIS MORNING...

* WHAT...Snow. Additional snow accumulations less than one inch.

* WHERE...Benton, Jasper, Lake IN, Newton, and Porter Counties.

* WHEN...Until 3 AM CST /4 AM EST/ early this morning.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for Indiana can be obtained at https://511in.org.

&&

$$


Action: Expired
Issued At: 2025-12-02 03:03:42

581 
WWUS43 KLOT 020902
WSWLOT

URGENT - WINTER WEATHER MESSAGE
National Weather Service Chicago IL
302 AM CST Tue Dec 2 2025

INZ001-002-010-011-019-021015-
/O.EXP.KLOT.WW.Y.0009.000000T0000Z-251202T0900Z/
Lake IN-Porter-Newton-Jasper-Benton-
Including the cities of Chesterton, Oxford, Roselawn, Valparaiso,
Hammond, Rensselaer, Kentland, DeMotte, Portage, Morocco, Gary,
Fowler, and Merrillville
302 AM CST Tue Dec 2 2025 /402 AM EST Tue Dec 2 2025/

...WINTER WEATHER ADVISORY HAS EXPIRED...

The light snow has ended. Untreated surfaces may remain partially 
snow covered and slippery.

$$



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