740  
WGUS83 KLSX 170818  
FLSLSX  
 
FLOOD ADVISORY  
NATIONAL WEATHER SERVICE ST LOUIS MO  
318 AM CDT THU JUL 17 2025  
 
ILC117-119-171115-  
/O.NEW.KLSX.FA.Y.0055.250717T0818Z-250717T1115Z/  
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/  
MACOUPIN IL-MADISON IL-  
318 AM CDT THU JUL 17 2025  
   
..FLOOD ADVISORY IN EFFECT UNTIL 615 AM CDT THIS MORNING  
 
* WHAT...FLOODING CAUSED BY EXCESSIVE RAINFALL IS EXPECTED.  
 
* WHERE...A PORTION OF SOUTHWEST ILLINOIS, INCLUDING THE FOLLOWING  
COUNTIES, SOUTHERN MACOUPIN AND MADISON.  
 
* WHEN...UNTIL 615 AM CDT.  
 
* IMPACTS...MINOR FLOODING IN LOW-LYING AND POOR DRAINAGE AREAS.  
 
* ADDITIONAL DETAILS...  
- AT 318 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 2 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...  
GRANITE CITY, ALTON, EDWARDSVILLE, GODFREY, GLEN CARBON, WOOD  
RIVER, BETHALTO, PONTOON BEACH, STAUNTON, EAST ALTON, MOUNT  
OLIVE, SOUTH ROXANA, BUNKER HILL, ROXANA, HARTFORD, WORDEN,  
MARINE, LIVINGSTON, ALHAMBRA AND WILSONVILLE.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
TURN AROUND, DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD  
DEATHS OCCUR IN VEHICLES.  
 
 
 
LAT...LON 3902 9015 3910 8971 3900 8970 3900 8964  
3890 8964 3883 8966 3878 8976 3875 8991  
3876 9011 3878 9015 3881 9012 3885 9011  
3891 9023 3892 9028 3900 9027 3900 9014  
 
 
 
GOSSELIN  
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