312  
WGUS53 KFSD 080107  
FFWFSD  
SDC023-080400-  
/O.NEW.KFSD.FF.W.0016.260908T0107Z-260908T0400Z/  
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/  
 
BULLETIN - EAS ACTIVATION REQUESTED  
FLASH FLOOD WARNING  
NATIONAL WEATHER SERVICE SIOUX FALLS SD  
807 PM CDT MON SEP 7 2026  
 
THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A  
 
* FLASH FLOOD WARNING FOR...  
SOUTHEASTERN CHARLES MIX COUNTY IN SOUTH CENTRAL SOUTH DAKOTA...  
 
* UNTIL 1100 PM CDT.  
 
* AT 807 PM CDT, DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING  
HEAVY RAIN ACROSS THE WARNED AREA. BETWEEN 1 AND 3 INCHES OF RAIN  
HAVE FALLEN. THE EXPECTED RAINFALL RATE IS 1 TO 3 INCHES IN 1 HOUR.  
FLASH FLOODING IS ONGOING OR EXPECTED TO BEGIN SHORTLY.  
 
HAZARD...FLASH FLOODING CAUSED BY THUNDERSTORMS.  
 
SOURCE...RADAR INDICATED.  
 
IMPACT...FLASH FLOODING OF SMALL CREEKS AND STREAMS, URBAN AREAS,  
HIGHWAYS, STREETS AND UNDERPASSES AS WELL AS OTHER POOR  
DRAINAGE AND LOW-LYING AREAS.  
 
* SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...  
WAGNER, MARTY, DANTE AND YANKTON SIOUX TRIBAL NATION.  
 
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.  
 
PLEASE REPORT OBSERVED FLOODING TO LOCAL EMERGENCY SERVICES OR LAW  
ENFORCEMENT AND REQUEST THEY PASS THIS INFORMATION TO THE NATIONAL  
WEATHER SERVICE WHEN YOU CAN DO SO SAFELY.  
 
 
 
LAT...LON 4301 9850 4301 9849 4310 9839 4312 9835  
4314 9826 4311 9821 4300 9813 4297 9814  
4292 9823 4290 9834 4290 9835 4293 9842  
4293 9844 4294 9845 4295 9847 4298 9849  
4299 9850  
 
FLASH FLOOD...RADAR INDICATED  
EXPECTED RAINFALL RATE...1-3 INCHES IN 1 HOUR  
 
 
 
DUX  
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