322  
WWUS83 KLOT 290912  
SPSLOT  
 
SPECIAL WEATHER STATEMENT  
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL  
412 AM CDT TUE SEP 29 2026  
 
ILZ004>006-011>013-020-021-023-103>108-INZ001-002-010-011-291200-  
BOONE-MCHENRY-LAKE IL-DE KALB-KANE-DUPAGE-KENDALL-GRUNDY-KANKAKEE-  
NORTHERN COOK-CENTRAL COOK-SOUTHERN COOK-NORTHERN WILL-  
SOUTHERN WILL-EASTERN WILL-LAKE IN-PORTER-NEWTON-JASPER-  
INCLUDING THE CITIES OF BELVIDERE, CRYSTAL LAKE, ALGONQUIN,  
MCHENRY, WOODSTOCK, WAUKEGAN, BUFFALO GROVE, MUNDELEIN, GURNEE,  
DEKALB, SYCAMORE, AURORA, ELGIN, NAPERVILLE, WHEATON,  
DOWNERS GROVE, LOMBARD, CAROL STREAM, OSWEGO, YORKVILLE, PLANO,  
MORRIS, COAL CITY, MINOOKA, KANKAKEE, BOURBONNAIS, BRADLEY,  
EVANSTON, DES PLAINES, SCHAUMBURG, PALATINE, NORTHBROOK, CHICAGO,  
CICERO, OAK LAWN, OAK PARK, LA GRANGE, CALUMET CITY, OAK FOREST,  
LEMONT, ORLAND PARK, PARK FOREST, JOLIET, BOLINGBROOK,  
PLAINFIELD, MOKENA, CHANNAHON, MANHATTAN, WILMINGTON, CRETE,  
PEOTONE, BEECHER, GARY, HAMMOND, MERRILLVILLE, PORTAGE,  
VALPARAISO, CHESTERTON, ROSELAWN, KENTLAND, MOROCCO, RENSSELAER,  
AND DEMOTTE  
412 AM CDT TUE SEP 29 2026  
   
..LOCALLY DENSE FOG EARLY THIS MORNING
 
 
AREAS OF FOG, INCLUDING PATCHES OF LOCALLY DENSE FOG, WILL OCCUR  
IN PORTIONS OF NORTHEAST ILLINOIS AND NORTHWEST INDIANA THROUGH  
THE EARLY TO MID-MORNING, INCLUDING DURING THE MORNING COMMUTE.  
EXPECT RAPID CHANGES IN VISIBILITY OVER SHORT DISTANCES, WITH  
VISIBILITY REDUCED DOWN TO ONE QUARTER MILE OR LESS IN SPOTS.  
 
INCREASE FOLLOWING DISTANCE, SLOW DOWN, AND USE LOW BEAM  
HEADLIGHTS IF DENSE FOG IS ENCOUNTERED WHILE DRIVING.  
 

 
 
PETR  
 
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