682  
WGUS83 KLOT 100432  
FLSLOT  
 
FLOOD ADVISORY  
NATIONAL WEATHER SERVICE CHICAGO IL  
1132 PM CDT SUN AUG 9 2026  
 
ILC037-099-100730-  
/O.NEW.KLOT.FA.Y.0091.260810T0432Z-260810T0730Z/  
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/  
DE KALB IL-LA SALLE IL-  
1132 PM CDT SUN AUG 9 2026  
   
..FLOOD ADVISORY IN EFFECT UNTIL 230 AM CDT MONDAY
 
 
* WHAT...FLOODING CAUSED BY EXCESSIVE RAINFALL IS EXPECTED.  
 
* WHERE...SOUTHWESTERN DE KALB COUNTY IN NORTH CENTRAL ILLINOIS...  
LA SALLE COUNTY IN NORTH CENTRAL ILLINOIS...  
 
* WHEN...UNTIL 230 AM CDT.  
 
* IMPACTS...CREEKS AND STREAMS MAY RISE OUT OF THEIR BANKS. ROADS AND  
STREETS MAY BE FLOODED.  
 
* ADDITIONAL DETAILS...  
- AT 1131 PM CDT, DOPPLER RADAR INDICATED SLOW MOVING THUNDERSTORMS  
PRODUCING RAINFALL RATES OF 1 TO 2 INCHES PER HOUR. UP TO 1.5  
INCHES OF RAIN HAVE FALLEN SO FAR NEAR GRAND RIDGE. MINOR  
FLOODING IS ONGOING OR EXPECTED TO BEGIN SHORTLY IN THE ADVISORY  
AREA.  
- SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...  
OTTAWA, STREATOR, PERU, LA SALLE, SANDWICH, MENDOTA, MARSEILLES,  
SHERIDAN, SHABBONA, LAKE HOLIDAY, OGLESBY, SENECA, SOMONAUK,  
EARLVILLE, WATERMAN, NORTH UTICA, SERENA, LELAND, TONICA AND  
GRAND RIDGE.  
- 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 4131 8916 4163 8917 4163 8894 4189 8894  
4176 8873 4164 8860 4150 8860 4111 8859  
4111 8916  
 

 
 
WSL  
 
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