683  
WWUS83 KLOT 110934  
SPSLOT  
 
SPECIAL WEATHER STATEMENT  
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL  
434 AM CDT THU SEP 11 2025  
 
ILZ005-006-111300-  
MCHENRY-LAKE IL-  
INCLUDING THE CITIES OF CRYSTAL LAKE, ALGONQUIN, MCHENRY,  
WOODSTOCK, WAUKEGAN, BUFFALO GROVE, MUNDELEIN, AND GURNEE  
434 AM CDT THU SEP 11 2025  
   
..PATCHY DENSE FOG POSSIBLE EARLY THIS MORNING
 
 
AREAS OF FOG ARE DEVELOPING INTO FAR NORTHEAST ILLINOIS EARLY THIS  
MORNING FROM WISCONSIN. PATCHY DENSE FOG, WITH VISIBILITIES LESS  
THAN A HALF MILE, WILL PERSIST THROUGH SUNRISE ACROSS PORTIONS OF  
LAKE AND MCHENRY COUNTIES, ESPECIALLY NORTH OF ROUTE 120. FOG  
SHOULD GRADUALLY LIFT AFTER SUNRISE, WITH IMPROVING VISIBILITIES.  
 
IF HEADING OUT EARLY THIS MORNING, BE ALERT FOR RAPID CHANGES IN  
VISIBILITY. IF YOU ENCOUNTER DENSE FOG, SLOW DOWN, USE YOUR LOW  
BEAM HEADLIGHTS AND EXERCISE CAUTION.  
 

 
 
RATZER  
 
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