055
WWUS43 KLOT 310301
WSWLOT
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
901 PM CST FRI JAN 30 2026
ILZ104-105-311315-
/O.CAN.KLOT.WS.W.0003.000000T0000Z-260131T0600Z/
/O.CON.KLOT.WW.Y.0007.260131T1200Z-260131T2200Z/
CENTRAL COOK-SOUTHERN COOK-
INCLUDING THE CITIES OF LA GRANGE, CICERO, CALUMET CITY, OAK
FOREST, OAK LAWN, PARK FOREST, ORLAND PARK, OAK PARK, LEMONT, AND
CHICAGO
901 PM CST FRI JAN 30 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 AM TO 4 PM CST
SATURDAY...
* WHAT...LAKE EFFECT SNOW EXPECTED SATURDAY MORNING. TOTAL SNOW
ACCUMULATIONS COULD LOCALLY EXCEED 3 INCHES, ESPECIALLY NEAR THE
LAKE.
* WHERE...CENTRAL COOK AND SOUTHERN COOK COUNTIES.
* WHEN...FROM 6 AM TO 4 PM CST SATURDAY.
* IMPACTS...LOCALIZED HAZARDOUS TRAVEL IS EXPECTED ON SATURDAY
ESPECIALLY NEAR THE LAKE.
* ADDITIONAL DETAILS...A BAND OF LAKE EFFECT SNOW IS EXPECTED TO
SHIFT BACK WESTWARD SATURDAY MORNING, AND IS EXPECTED TO IMPACT
PARTS OF NORTHEASTERN ILLINOIS ON SATURDAY. WHILE THE FOOTPRINT OF
ACCUMULATING SNOW IS LIKELY TO BE LOWER, LOCALIZED ADDITIONAL
ACCUMULATIONS AND ASSOCIATED TRAVEL IMPACTS ARE EXPECTED.
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.
MONITOR THE LATEST FORECASTS FOR UPDATES ON THIS SITUATION.
ILZ108-311315-
/O.CAN.KLOT.WW.Y.0007.000000T0000Z-260131T0600Z/
/O.CON.KLOT.WW.Y.0008.260131T1200Z-260131T2200Z/
EASTERN WILL-
INCLUDING THE CITIES OF PEOTONE, CRETE, AND BEECHER
901 PM CST FRI JAN 30 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 AM TO 4 PM CST
SATURDAY...
* WHAT...LAKE EFFECT SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS COULD
LOCALLY EXCEED 4 INCHES, ESPECIALLY NEAR THE ILLINOIS-INDIANA
STATELINE.
* WHERE...EASTERN WILL COUNTY.
* WHEN...FROM 6 AM TO 4 PM CST SATURDAY.
* IMPACTS...ROADS, AND ESPECIALLY BRIDGES AND OVERPASSES, WILL
LIKELY BECOME SLICK AND HAZARDOUS.
* ADDITIONAL DETAILS...THE BAND OF SNOW IS EXPECTED TO SHIFT BACK
WESTWARD INTO PARTS OF NORTHEASTERN ILLINOIS SATURDAY MORNING, AND
THIS COULD RESULT IN ADDITIONAL LOCALIZED ACCUMULATIONS AND TRAVEL
IMPACTS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MONITOR THE LATEST FORECASTS FOR UPDATES ON THIS SITUATION.
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.
INZ001-002-311315-
/O.CON.KLOT.WS.W.0003.000000T0000Z-260201T0000Z/
LAKE IN-PORTER-
INCLUDING THE CITIES OF PORTAGE, GARY, MERRILLVILLE, CHESTERTON,
HAMMOND, AND VALPARAISO
901 PM CST FRI JAN 30 2026
..WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST SATURDAY
* WHAT...HEAVY LAKE EFFECT SNOW WITH TOTAL SNOW ACCUMULATIONS OVER 6
INCHES EXPECTED, MAINLY NEAR AND NORTH OF US ROUTE 30. ISOLATED
TOTALS UP TO A FOOT ARE POSSIBLE.
* WHERE...LAKE IN AND PORTER COUNTIES.
* WHEN...UNTIL 6 PM CST SATURDAY.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT TO NEARLY IMPOSSIBLE AT
TIMES NORTH OF U.S. ROUTE 30 WITH NEAR WHITE OUT CONDITIONS AND
SNOWFALL RATES OF 2 OR MORE INCHES PER HOUR UNDER THE MOST INTENSE
PORTIONS OF THE BAND.
* ADDITIONAL DETAILS...THE HEAVIEST SNOWFALL IS EXPECTED LATE THIS
EVENING THROUGH SATURDAY MORNING, WHEN LOCALLY 2 INCH PER HOUR
RATES ARE EXPECTED AT TIMES. SOME BREAKS IN THE SNOWFALL ARE
POSSIBLE AT TIMES AS THE SNOW BAND WOBBLES TONIGHT AND SATURDAY.
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.
MONITOR THE LATEST FORECASTS FOR UPDATES ON THIS SITUATION.
ILZ103-311315-
/O.CON.KLOT.WW.Y.0007.260131T1200Z-260131T2200Z/
NORTHERN COOK-
INCLUDING THE CITIES OF DES PLAINES, EVANSTON, PALATINE,
SCHAUMBURG, AND NORTHBROOK
901 PM CST FRI JAN 30 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 AM TO 4 PM CST
SATURDAY...
* WHAT...LAKE EFFECT SNOW EXPECTED SATURDAY MORNING. TOTAL SNOW
ACCUMULATIONS COULD LOCALLY EXCEED 3 INCHES, ESPECIALLY NEAR THE
LAKE.
* WHERE...NORTHERN COOK COUNTY.
* WHEN...FROM 6 AM TO 4 PM CST SATURDAY.
* IMPACTS...ROADS, AND ESPECIALLY BRIDGES AND OVERPASSES, WILL
LIKELY BECOME SLICK AND HAZARDOUS.
* ADDITIONAL DETAILS...THE BAND OF SNOW IS EXPECTED TO SHIFT BACK
WESTWARD INTO PARTS OF NORTHEASTERN ILLINOIS SATURDAY MORNING.
THIS WILL LIKELY RESULT IN ADDITIONAL LOCALIZED ACCUMULATIONS AND
TRAVEL IMPACTS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MONITOR THE LATEST FORECASTS FOR UPDATES ON THIS SITUATION.
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.
YACK
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