433  
WGUS83 KLOT 121429  
FLSLOT  
 
FLOOD ADVISORY  
NATIONAL WEATHER SERVICE CHICAGO IL  
929 AM CDT WED AUG 12 2026  
 
ILC031-091-197-121830-  
/O.NEW.KLOT.FA.Y.0105.260812T1429Z-260812T1830Z/  
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/  
COOK IL-KANKAKEE IL-WILL IL-  
929 AM CDT WED AUG 12 2026  
   
..FLOOD ADVISORY IN EFFECT UNTIL 130 PM CDT THIS AFTERNOON  
 
* WHAT...FLOODING CAUSED BY EXCESSIVE RAINFALL IS EXPECTED.  
 
* WHERE...SOUTHEASTERN COOK COUNTY IN NORTHEASTERN ILLINOIS...  
KANKAKEE COUNTY IN NORTHEASTERN ILLINOIS...  
WILL COUNTY IN NORTHEASTERN ILLINOIS...  
 
* WHEN...UNTIL 130 PM CDT.  
 
* IMPACTS...FLOODING MAY OCCUR IN POOR DRAINAGE AND URBAN AREAS.  
UNDERPASSES MAY BE FLOODED. ROADS AND STREETS MAY BE FLOODED.  
 
* ADDITIONAL DETAILS...  
- AT 928 AM CDT, DOPPLER RADAR AND AUTOMATED RAIN GAUGES INDICATED  
HEAVY RAIN DUE TO THUNDERSTORMS WITH RAINFALL RATES OF 1 TO 2  
INCHES PER HOUR MOVING INTO AN AREA WITH HIGH SOIL MOISTURE DUE  
TO RECENT RAINFALL. MINOR FLOODING MAY BEGIN SHORTLY AFTER THE  
ONSET OF RAINFALL.  
- SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...  
CHICAGO, JOLIET, NAPERVILLE, BOLINGBROOK, ORLAND PARK, TINLEY  
PARK, OAK LAWN, ROMEOVILLE, PLAINFIELD, CALUMET CITY, CHICAGO  
HEIGHTS, ROSELAND, LANSING, OAK FOREST, KANKAKEE, HARVEY AND  
LOCKPORT.  
- HTTP://WWW.WEATHER.GOV/SAFETY/FLOOD  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
A FLOOD ADVISORY MEANS MINOR FLOODING ALONG WATERWAYS AND OTHER POOR  
DRAINAGE AREAS IS IMMINENT OR MAY ALREADY BE OCCURRING. PERSONS IN  
THE ADVISORY AREA SHOULD USE CAUTION AND AVOID FLOOD WATERS.  
 
 
 
LAT...LON 4172 8826 4173 8803 4169 8803 4169 8799  
4172 8791 4175 8752 4101 8753 4100 8825  
 
 
 
WSL  
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