623  
WGUS83 KLSX 011137  
FLSLSX  
 
FLOOD ADVISORY  
NATIONAL WEATHER SERVICE ST LOUIS MO  
637 AM CDT MON JUN 1 2026  
 
ILC163-011530-  
/O.NEW.KLSX.FA.Y.0033.260601T1137Z-260601T1530Z/  
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/  
SAINT CLAIR IL-  
637 AM CDT MON JUN 1 2026  
   
..FLOOD ADVISORY IN EFFECT UNTIL 1030 AM CDT THIS MORNING  
 
* WHAT...FLOODING CAUSED BY EXCESSIVE RAINFALL IS EXPECTED.  
 
* WHERE...SAINT CLAIR COUNTY IN SOUTHWESTERN ILLINOIS...  
 
* WHEN...UNTIL 1030 AM CDT.  
 
* IMPACTS...MINOR FLOODING IN LOW-LYING AND POOR DRAINAGE AREAS.  
 
* ADDITIONAL DETAILS...  
- AT 637 AM CDT, DOPPLER RADAR INDICATED HEAVY RAIN DUE TO  
THUNDERSTORMS. MINOR FLOODING IS ONGOING OR EXPECTED TO BEGIN  
SHORTLY IN THE ADVISORY AREA. BETWEEN 1 AND 3 INCHES OF RAIN HAVE  
FALLEN.  
- ADDITIONAL RAINFALL AMOUNTS UP TO 1 INCH ARE EXPECTED OVER THE  
AREA. THIS ADDITIONAL RAIN WILL RESULT IN MINOR FLOODING.  
- SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...  
BELLEVILLE, CAHOKIA, SWANSEA, MASCOUTAH, FREEBURG, DUPO,  
MILLSTADT, SMITHTON, NEW ATHENS, MARISSA, EAST CARONDELET, ST.  
LIBORY, LENZBURG, FAYETTEVILLE AND BARR.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
TURN AROUND, DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD  
DEATHS OCCUR IN VEHICLES.  
 
BE AWARE OF YOUR SURROUNDINGS AND DO NOT DRIVE ON FLOODED ROADS.  
 
 
 
LAT...LON 3863 9018 3856 9017 3849 8971 3822 8970  
3822 8990 3827 8992 3829 8992 3828 8990  
3831 8991 3831 9004 3832 9004 3842 9015  
3843 9015 3852 9026 3857 9022 3860 9019  
 
 
 
CARNEY  
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