452
WWUS43 KLOT 301519
WSWLOT
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
919 AM CST FRI JAN 30 2026
ILZ104-105-310130-
/O.UPG.KLOT.WW.Y.0006.000000T0000Z-260131T0000Z/
/O.EXB.KLOT.WS.W.0003.260130T1519Z-260131T0600Z/
/O.EXT.KLOT.WS.A.0001.260131T0600Z-260131T1800Z/
CENTRAL COOK-SOUTHERN COOK-
INCLUDING THE CITIES OF OAK PARK, ORLAND PARK, CALUMET CITY,
LEMONT, CICERO, OAK FOREST, CHICAGO, OAK LAWN, LA GRANGE, AND
PARK FOREST
919 AM CST FRI JAN 30 2026
..WINTER STORM WARNING IN EFFECT UNTIL MIDNIGHT CST TONIGHT
...WINTER STORM WATCH NOW IN EFFECT FROM LATE TONIGHT THROUGH
SATURDAY MORNING...
* WHAT...FOR THE WINTER STORM WARNING, HEAVY LAKE EFFECT SNOW. SNOW
ACCUMULATIONS LOCALLY IN EXCESS OF 6 INCHES, PARTICULARLY IN AREAS
NEAR THE LAKE. FOR THE WINTER STORM WATCH, HEAVY LAKE EFFECT SNOW
POSSIBLE, WITH ADDITIONAL ACCUMULATIONS POSSIBLE INTO SATURDAY
MORNING.
* WHERE...CENTRAL COOK AND SOUTHERN COOK COUNTIES.
* WHEN...FOR THE WINTER STORM WARNING, UNTIL MIDNIGHT CST TONIGHT.
FOR THE WINTER STORM WATCH, FROM LATE TONIGHT THROUGH SATURDAY
MORNING.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT AT TIMES, WITH NEAR WHITE
OUT CONDITIONS AND SNOWFALL RATES OF 1 TO 2 INCHES PER HOUR UNDER
THE MOST INTENSE PORTIONS OF THE BAND THROUGH THIS EVENING.
* ADDITIONAL DETAILS...A BURST OF ACCUMULATING SNOW IS EXPECTED
THROUGH EARLY AFTERNOON, WITH RATES OF 1 TO 2 INCHES PER HOUR AT
TIMES. THIS WILL MAKE FOR HAZARDOUS TRAVEL CONDITIONS. WHILE A
SHORT BREAK IN THE HEAVY SNOW IS POSSIBLE FOR A PERIOD THIS
AFTERNOON, A SECOND ROUND OF INTENSE LAKE EFFECT SNOW IS EXPECTED
TO BRING AT LEAST A FEW HOUR PERIOD OF SNOWFALL RATES UP TO 2
INCHES PER HOUR THIS EVENING. FINALLY, THE LAKE EFFECT SNOW BAND
MAY SHIFT BACK WESTWARD ALONG THE STATE LINE AND BRING ANOTHER
PERIOD OF HEAVY LAKE EFFECT SNOW FOR SEVERAL HOURS SATURDAY
MORNING.
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.
INZ001-002-310130-
/O.CON.KLOT.WS.W.0003.260130T2100Z-260201T0000Z/
LAKE IN-PORTER-
INCLUDING THE CITIES OF CHESTERTON, GARY, VALPARAISO,
MERRILLVILLE, HAMMOND, AND PORTAGE
919 AM CST FRI JAN 30 2026
...WINTER STORM WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON
TO 6 PM CST SATURDAY...
* WHAT...HEAVY LAKE EFFECT SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS
OVER 6 INCHES EXPECTED, MAINLY NEAR AND NORTH OF US ROUTE 30.
ISOLATED TOTALS UP TO ONE FOOT ARE POSSIBLE.
* WHERE...LAKE IN AND PORTER COUNTIES.
* WHEN...FROM 3 PM THIS AFTERNOON TO 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 THIS EVENING INTO SATURDAY MORNING.
* ADDITIONAL DETAILS...THE MAIN WINDOW FOR THE HEAVIEST SNOWFALL IS
EXPECTED THIS EVENING THROUGH SATURDAY MORNING. SOME BREAKS IN THE
SNOWFALL ARE POSSIBLE AS THE SNOW BAND SHIFTS BACK AND FORTH OVER
THE AREA.
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.
IF YOU MUST TRAVEL, KEEP AN EXTRA FLASHLIGHT, FOOD, AND WATER IN
YOUR VEHICLE IN CASE OF AN EMERGENCY. THE LATEST ROAD CONDITIONS FOR
INDIANA CAN BE OBTAINED AT HTTPS://511IN.ORG.
MONITOR THE LATEST FORECASTS FOR UPDATES ON THIS SITUATION.
ILZ006-013-103-310000-
/O.CON.KLOT.WW.Y.0006.000000T0000Z-260131T0000Z/
LAKE IL-DUPAGE-NORTHERN COOK-
INCLUDING THE CITIES OF LOMBARD, EVANSTON, GURNEE, DES PLAINES,
WAUKEGAN, NAPERVILLE, SCHAUMBURG, PALATINE, BUFFALO GROVE,
MUNDELEIN, NORTHBROOK, CAROL STREAM, DOWNERS GROVE, AND WHEATON
919 AM CST FRI JAN 30 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...
* WHAT...SNOW EXPECTED, POSSIBLY FALLING HEAVILY AT TIMES. A QUICK 1
TO 3 INCHES OF ACCUMULATION IS EXPECTED WITHIN JUST A 2 OR 3 HOUR
PERIOD. LOCALLY HIGHER AMOUNTS POSSIBLE WITH LAKE-ENHANCED SNOW
OVER LAKE AND NORTHERN COOK COUNTIES.
* WHERE...DUPAGE, LAKE IL, AND NORTHERN COOK COUNTIES.
* WHEN...UNTIL 6 PM CST THIS EVENING.
* IMPACTS...ROADS, BRIDGES AND OVERPASSES WILL LIKELY BECOME SLICK
AND HAZARDOUS. PLAN ON SLIPPERY ROAD CONDITIONS. THE HAZARDOUS
CONDITIONS COULD IMPACT THE EVENING COMMUTE.
* ADDITIONAL DETAILS...A BURST OF ACCUMULATING SNOW IS EXPECTED INTO
THIS AFTERNOON. THE SNOW DURING THIS PERIOD MAY BRIEFLY FALL AT A
RATE OF UP TO AN INCH PER HOUR AND MAKE FOR SLICK TRAVEL
CONDITIONS.
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.
ILZ108-310130-
/O.CON.KLOT.WW.Y.0007.260131T0000Z-260131T1800Z/
EASTERN WILL-
INCLUDING THE CITIES OF CRETE, PEOTONE, AND BEECHER
919 AM CST FRI JAN 30 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO NOON CST SATURDAY...
* WHAT...LAKE EFFECT SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS IN
EXCESS OF 3 INCHES NEAR THE INDIANA STATE LINE TO AROUND 1 INCH
WEST OF I-57.
* WHERE...EASTERN WILL COUNTY.
* WHEN...FROM 6 PM THIS EVENING TO NOON CST SATURDAY.
* IMPACTS...PLAN ON SLIPPERY ROAD CONDITIONS.
* ADDITIONAL DETAILS...AN INTENSE LAKE EFFECT SNOW BAND MAY SETTLE
NEAR THE STATE LINE LATE TONIGHT INTO SATURDAY MORNING AND BRING
SNOWFALL RATES OVER 1 INCH PER HOUR FOR SEVERAL HOURS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SLOW DOWN AND USE CAUTION WHILE TRAVELING. THE LATEST ROAD
CONDITIONS FOR ILLINOIS CAN BE OBTAINED AT
WWW.GETTINGAROUNDILLINOIS.COM.
BIRK
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