493
WWUS43 KLOT 310834
WSWLOT
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
234 AM CST SAT JAN 31 2026
INZ001-311845-
/O.CAN.KLOT.WS.W.0003.000000T0000Z-260201T0000Z/
/O.EXB.KLOT.WW.Y.0007.260131T0834Z-260201T0000Z/
LAKE IN-
INCLUDING THE CITIES OF GARY, MERRILLVILLE, AND HAMMOND
234 AM CST SAT JAN 31 2026
..WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM CST THIS EVENING
..WINTER STORM WARNING IS CANCELLED
* WHAT...LAKE EFFECT SNOW. ADDITIONAL SNOW ACCUMULATIONS BETWEEN 2
AND 4 INCHES, WITH LOCALIZED TOTALS UP TO 5 INCHES, NORTH OF U.S.
ROUTE 30.
* WHERE...LAKE IN COUNTY.
* WHEN...UNTIL 6 PM CST THIS EVENING.
* IMPACTS...ROADS, AND ESPECIALLY BRIDGES AND OVERPASSES, WILL
LIKELY BECOME SLICK AND HAZARDOUS.
* ADDITIONAL DETAILS...A MAIN LAKE EFFECT SNOW BAND IS EXPECTED TO
MOVE OVER THE AREA PRIOR TO SUNRISE, THEN SETTLE ALONG THE
ILLINOIS SHORE AND INTO NORTHERN LAKE COUNTY THROUGH THE DAY.
THOUGH THE INTENSITY OF SNOW WILL GRADUALLY DIMINISH THROUGH THE
DAY, SNOWFALL RATES THIS MORNING COULD SURPASS 1 INCH PER HOUR.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DURING LAKE EFFECT SNOW, THE WEATHER CAN VARY FROM NEAR WHITE OUT
CONDITIONS IN VERY HEAVY SNOW TO DRY WEATHER JUST A FEW MILES AWAY.
BE PREPARED FOR RAPID CHANGES IN WEATHER, VISIBILITY, AND ROAD
CONDITIONS.
SLOW DOWN AND USE CAUTION WHILE TRAVELING. THE LATEST ROAD
CONDITIONS FOR INDIANA CAN BE OBTAINED AT HTTPS://511IN.ORG.
INZ002-311800-
/O.CAN.KLOT.WS.W.0003.000000T0000Z-260201T0000Z/
/O.EXB.KLOT.WW.Y.0007.260131T0834Z-260131T1800Z/
PORTER-
INCLUDING THE CITIES OF VALPARAISO, PORTAGE, AND CHESTERTON
234 AM CST SAT JAN 31 2026
..WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON CST TODAY
..WINTER STORM WARNING IS CANCELLED
* WHAT...LAKE EFFECT SNOW. ADDITIONAL SNOW ACCUMULATIONS BETWEEN 1
AND 3 INCHES, WITH MOST OF THE SNOW FALLING BY MID-MORNING.
* WHERE...PORTER COUNTY.
* WHEN...UNTIL NOON CST TODAY.
* IMPACTS...ROADS, AND ESPECIALLY BRIDGES AND OVERPASSES, WILL
LIKELY BECOME SLICK AND HAZARDOUS.
* ADDITIONAL DETAILS...SNOWFALL RATES OF OVER 1 INCH PER HOUR ARE
POSSIBLE THROUGH AROUND SUNRISE ACROSS NORTHERN PORTER COUNTY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DURING LAKE EFFECT SNOW, THE WEATHER CAN VARY FROM NEAR WHITE OUT
CONDITIONS IN VERY HEAVY SNOW TO DRY WEATHER JUST A FEW MILES AWAY.
BE PREPARED FOR RAPID CHANGES IN WEATHER, VISIBILITY, AND ROAD
CONDITIONS.
SLOW DOWN AND USE CAUTION WHILE TRAVELING. THE LATEST ROAD
CONDITIONS FOR INDIANA CAN BE OBTAINED AT HTTPS://511IN.ORG.
ILZ103>105-311845-
/O.EXT.KLOT.WW.Y.0007.260131T1100Z-260131T2200Z/
NORTHERN COOK-CENTRAL COOK-SOUTHERN COOK-
INCLUDING THE CITIES OF DES PLAINES, NORTHBROOK, CICERO, LA
GRANGE, OAK LAWN, PARK FOREST, ORLAND PARK, CALUMET CITY,
PALATINE, SCHAUMBURG, EVANSTON, LEMONT, OAK FOREST, CHICAGO, AND
OAK PARK
234 AM CST SAT JAN 31 2026
...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 4 PM CST THIS
AFTERNOON...
* WHAT...LAKE EFFECT SNOW EXPECTED. ADDITIONAL SNOW ACCUMULATIONS
BETWEEN 2 AND 4 INCHES ALONG THE COOK COUNTY SHORE TO 1 INCH OR
LESS ALONG AND WEST OF THE INTERSTATE 294 CORRIDOR. LOCALIZED
TOTALS OVER 4 INCHES POSSIBLE ALONG THE SHORE.
* WHERE...CENTRAL COOK, NORTHERN COOK, AND SOUTHERN COOK COUNTIES.
* WHEN...UNTIL 4 PM CST THIS AFTERNOON.
* IMPACTS...ROADS, AND ESPECIALLY BRIDGES AND OVERPASSES, WILL
LIKELY BECOME SLICK AND HAZARDOUS.
* ADDITIONAL DETAILS...A MAIN LAKE EFFECT SNOW BAND IS EXPECTED TO
MOVE OVER THE AREA PRIOR TO SUNRISE, THEN SETTLE ALONG THE COOK
COUNTY SHORE, INCLUDING DOWNTOWN CHICAGO, THROUGH THE DAY. THOUGH
THE INTENSITY OF SNOW WILL GRADUALLY DIMINISH THROUGH THE DAY,
LOCALIZED SNOWFALL RATES OVER 1 INCH PER HOUR ARE EXPECTED THIS
MORNING.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SLOW DOWN AND USE CAUTION WHILE TRAVELING. THE LATEST ROAD
CONDITIONS FOR ILLINOIS CAN BE OBTAINED AT
WWW.GETTINGAROUNDILLINOIS.COM.
DURING LAKE EFFECT SNOW, THE WEATHER CAN VARY FROM BANDS OF LOCALLY
HEAVY SNOW TO DRY WEATHER JUST A FEW MILES AWAY. VISIBILITIES CAN
ALSO VARY GREATLY. BE PREPARED FOR RAPID CHANGES IN WEATHER,
VISIBILITY, AND ROAD CONDITIONS.
ILZ108-311845-
/O.EXT.KLOT.WW.Y.0008.260131T1100Z-260131T2200Z/
EASTERN WILL-
INCLUDING THE CITIES OF CRETE, PEOTONE, AND BEECHER
234 AM CST SAT JAN 31 2026
...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 4 PM CST THIS
AFTERNOON...
* WHAT...LAKE EFFECT SNOW EXPECTED. ADDITIONAL SNOW ACCUMULATIONS
RANGING FROM UP TO 3 INCHES NEAR THE ILLINOIS-INDIANA STATELINE TO
LESS THAN 1 INCH WEST OF INTERSTATE 57.
* WHERE...EASTERN WILL COUNTY.
* WHEN...UNTIL 4 PM CST THIS AFTERNOON.
* IMPACTS...ROADS, AND ESPECIALLY BRIDGES AND OVERPASSES, WILL
LIKELY BECOME SLICK AND HAZARDOUS.
* ADDITIONAL DETAILS...SNOWFALL RATES UP TO 1 INCH PER HOUR ARE
POSSIBLE AS A LAKE EFFECT SNOW BAND SETTLES OVER THE AREA LATE
MORNING INTO EARLY AFTERNOON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SLOW DOWN AND USE CAUTION WHILE TRAVELING. THE LATEST ROAD
CONDITIONS FOR ILLINOIS CAN BE OBTAINED AT
WWW.GETTINGAROUNDILLINOIS.COM.
DURING LAKE EFFECT SNOW, THE WEATHER CAN VARY FROM BANDS OF LOCALLY
HEAVY SNOW TO DRY WEATHER JUST A FEW MILES AWAY. VISIBILITIES CAN
ALSO VARY GREATLY. BE PREPARED FOR RAPID CHANGES IN WEATHER,
VISIBILITY, AND ROAD CONDITIONS.
KLUBER
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