792  
WGUS83 KFSD 200137 RRA  
FLSFSD  
 
FLOOD STATEMENT  
NATIONAL WEATHER SERVICE SIOUX FALLS SD  
837 PM CDT WED JUN 19 2024  
 
...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN IOWA...  
 
LITTLE SIOUX RIVER AT SPENCER AFFECTING CLAY COUNTY.  
 
LITTLE SIOUX RIVER NEAR MILFORD AFFECTING DICKINSON COUNTY.  
 
LITTLE SIOUX RIVER ABOVE SPENCER / HIGHWAY 18 AFFECTING CLAY  
COUNTY.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
TURN AROUND, DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD  
DEATHS OCCUR IN VEHICLES.  
 
ADDITIONAL INFORMATION IS AVAILABLE AT WWW.WEATHER.GOV.  
 
THE NEXT STATEMENT WILL BE ISSUED BY THURSDAY MORNING.  
 

 
 
IAC041-201600-  
/O.CON.KFSD.FL.W.0027.000000T0000Z-000000T0000Z/  
/SPWI4.2.ER.240617T0733Z.240620T0000Z.000000T0000Z.NO/  
837 PM CDT WED JUN 19 2024  
   
..FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE
 
 
* WHAT...MODERATE FLOODING IS OCCURRING AND MODERATE FLOODING IS  
FORECAST.  
 
* WHERE...LITTLE SIOUX RIVER AT SPENCER.  
 
* WHEN...UNTIL FURTHER NOTICE.  
 
* IMPACTS...AT 14.0 FEET, CITY SEWERS IN SPENCER CAN BEGIN TO BACK  
UP. HIGHWAY 18 BETWEEN SPENCER AND DICKENS CAN START FLOODING IF  
FLOWS ON THE TRIBUTARY CREEKS ARE ALSO VERY HIGH.  
 
* ADDITIONAL DETAILS...  
- AT 7:00 PM CDT WEDNESDAY THE STAGE WAS 14.1 FEET.  
- RECENT ACTIVITY...THE MAXIMUM RIVER STAGE IN THE 24 HOURS  
ENDING AT 7:00 PM CDT WEDNESDAY WAS 14.1 FEET.  
- FORECAST...THE RIVER IS EXPECTED TO FALL TO 11.4 FEET MONDAY  
EVENING.  
- FLOOD STAGE IS 10.0 FEET.  
- HTTP://WWW.WEATHER.GOV/SAFETY/FLOOD  
 

 
 
FLD OBSERVED FORECASTS (7 PM CDT)  
LOCATION STG STG DAY/TIME THU FRI SAT  
 
LITTLE SIOUX RIVER  
SPENCER 10.0 14.1 WED 7 PM 13.6 12.8 12.2  
 

 
 
LAT...LON 4317 9520 4317 9514 4313 9502 4300 9501  
4296 9508 4296 9516 4306 9508 4312 9519  
 

 
 
IAC059-201600-  
/O.CON.KFSD.FL.W.0026.000000T0000Z-000000T0000Z/  
/MIFI4.2.ER.240617T0955Z.240618T1500Z.000000T0000Z.NO/  
837 PM CDT WED JUN 19 2024  
   
..FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE
 
 
* WHAT...MODERATE FLOODING IS OCCURRING AND MODERATE FLOODING IS  
FORECAST.  
 
* WHERE...LITTLE SIOUX RIVER NEAR MILFORD.  
 
* WHEN...UNTIL FURTHER NOTICE.  
 
* IMPACTS...AT 16.5 FEET, THE LOWEST PORTION OF 180TH ST IS FLOODED.  
 
* ADDITIONAL DETAILS...  
- AT 7:00 PM CDT WEDNESDAY THE STAGE WAS 15.1 FEET.  
- RECENT ACTIVITY...THE MAXIMUM RIVER STAGE IN THE 24 HOURS  
ENDING AT 7:00 PM CDT WEDNESDAY WAS 15.2 FEET.  
- FORECAST...THE RIVER IS EXPECTED TO FALL TO 12.0 FEET MONDAY  
EVENING.  
- FLOOD STAGE IS 12.0 FEET.  
- HTTP://WWW.WEATHER.GOV/SAFETY/FLOOD  
 

 
 
FLD OBSERVED FORECASTS (7 PM CDT)  
LOCATION STG STG DAY/TIME THU FRI SAT  
 
LITTLE SIOUX RIVER  
MILFORD 12.0 15.1 WED 7 PM 14.4 13.3 13.0  
 

 
 
LAT...LON 4341 9527 4341 9523 4330 9515 4326 9520  
4326 9527 4329 9523  
 

 
 
IAC041-201600-  
/O.CON.KFSD.FL.W.0025.000000T0000Z-000000T0000Z/  
/SPII4.2.ER.240616T2045Z.240620T0045Z.000000T0000Z.UU/  
837 PM CDT WED JUN 19 2024  
   
..FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE
 
 
* WHAT...MODERATE FLOODING IS OCCURRING.  
 
* WHERE...LITTLE SIOUX RIVER ABOVE SPENCER / HIGHWAY 18.  
 
* WHEN...UNTIL FURTHER NOTICE.  
 
* IMPACTS...AT 1322.5 FEET, MOST BANKS BEGIN TO BE OVERTOPPED AND  
OVERSPILL INTO NEARBY AGRICULTURAL LAND.  
 
* ADDITIONAL DETAILS...  
- AT 7:45 PM CDT WEDNESDAY THE STAGE WAS 1324.0 FEET.  
- RECENT ACTIVITY...THE MAXIMUM RIVER STAGE IN THE 24 HOURS  
ENDING AT 7:45 PM CDT WEDNESDAY WAS 1324.0 FEET.  
- FORECAST...NO FORECAST IS AVAILABLE FOR THIS LOCATION.  
- FLOOD STAGE IS 1322.0 FEET.  
- HTTP://WWW.WEATHER.GOV/SAFETY/FLOOD  
 

 
 
FLD OBSERVED FORECASTS (UNKNOWN TIME)  
LOCATION STG STG DAY/TIME D1 D2 D3  
 
LITTLE SIOUX RIVER  
SPENCER / HIGHWAY 1 1322.0 1324.0 WED 7 PM MSG MSG MSG  
 

 
 
LAT...LON 4326 9527 4326 9520 4321 9521 4317 9514  
4317 9520 4321 9526  
 

 
 
AP  
 
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