440  
WGUS43 KFSD 231601  
FLWFSD  
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED  
FLOOD WARNING  
NATIONAL WEATHER SERVICE SIOUX FALLS SD  
1101 AM CDT SUN JUN 23 2024  
 
...OBSERVED FLOODING CHANGED FROM MODERATE TO MAJOR SEVERITY FOR THE  
FOLLOWING RIVERS IN SOUTH DAKOTA...IOWA...  
 
BIG SIOUX RIVER NEAR JEFFERSON AFFECTING PLYMOUTH AND UNION  
COUNTIES.  
 
BRULE CREEK NEAR RICHLAND AFFECTING UNION COUNTY.  
 
BIG SIOUX RIVER NEAR EGAN AFFECTING MOODY COUNTY.  
 
SIXMILE CREEK NEAR BROOKINGS AFFECTING BROOKINGS COUNTY.  
 
BIG SIOUX RIVER NEAR TRENT AFFECTING MOODY 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 MONDAY AFTERNOON.  
 

 
 
IAC149-SDC127-241815-  
/O.CON.KFSD.FL.W.0106.000000T0000Z-000000T0000Z/  
/BSJS2.3.ER.240623T0822Z.240623T1445Z.000000T0000Z.NR/  
1101 AM CDT SUN JUN 23 2024  
   
..FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE
 
 
* WHAT...MAJOR FLOODING IS OCCURRING. THIS APPROACHES THE FLOOD OF  
RECORD.  
 
* WHERE...BIG SIOUX RIVER NEAR JEFFERSON.  
 
* WHEN...UNTIL FURTHER NOTICE.  
 
* IMPACTS...AT 42.0 FEET, THE LOWEST PORTIONS OF HWY 12 MAY BEGIN TO  
FLOOD.  
 
* ADDITIONAL DETAILS...  
- AT 9:45 AM CDT SUNDAY THE STAGE WAS 41.9 FEET.  
- RECENT ACTIVITY...THE MAXIMUM RIVER STAGE IN THE 24 HOURS  
ENDING AT 9:45 AM CDT SUNDAY WAS 41.9 FEET.  
- FORECAST...NO FORECAST IS AVAILABLE FOR THIS LOCATION.  
- FLOOD STAGE IS 31.0 FEET.  
- HTTP://WWW.WEATHER.GOV/SAFETY/FLOOD  
 

 
 
FLD OBSERVED FORECASTS (UNKNOWN TIME)  
LOCATION STG STG DAY/TIME D1 D2 D3  
 
BIG SIOUX RIVER  
JEFFERSON 31.0 41.9 SUN 9 AM MSG MSG MSG  
 

 
 
LAT...LON 4263 9659 4267 9653 4263 9649 4256 9647  
4256 9652  
 

 
 
SDC127-241815-  
/O.CON.KFSD.FL.W.0105.000000T0000Z-000000T0000Z/  
/BCKS2.2.ER.240623T0236Z.240623T1500Z.000000T0000Z.NO/  
1101 AM CDT SUN JUN 23 2024  
   
..FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE
 
 
* WHAT...MODERATE FLOODING IS OCCURRING.  
 
* WHERE...BRULE CREEK NEAR RICHLAND.  
 
* WHEN...UNTIL FURTHER NOTICE.  
 
* IMPACTS...AT 1127.0 FEET, 478TH AVENUE FLOODS, AS DO SOME TOWNSHIP  
ROADS IN EMMETT TOWNSHIP.  
 
* ADDITIONAL DETAILS...  
- AT 10:00 AM CDT SUNDAY THE STAGE WAS 1128.5 FEET.  
- RECENT ACTIVITY...THE MAXIMUM RIVER STAGE IN THE 24 HOURS  
ENDING AT 10:00 AM CDT SUNDAY WAS 1128.5 FEET.  
- FORECAST...NO FORECAST IS AVAILABLE FOR THIS LOCATION.  
- FLOOD STAGE IS 1125.0 FEET.  
- HTTP://WWW.WEATHER.GOV/SAFETY/FLOOD  
 

 
 
FLD OBSERVED FORECASTS (UNKNOWN TIME)  
LOCATION STG STG DAY/TIME D1 D2 D3  
 
BRULE CREEK  
RICHLAND 1125.0 1128.5 SUN 10 AM MSG MSG MSG  
 

 
 
LAT...LON 4290 9678 4290 9676 4287 9675 4286 9672  
4281 9667 4276 9666 4275 9663 4272 9665  
4275 9669 4280 9669 4286 9677  
 

 
 
SDC101-241815-  
/O.CON.KFSD.FL.W.0102.000000T0000Z-000000T0000Z/  
/EGAS2.2.ER.240622T1818Z.240623T1500Z.000000T0000Z.NO/  
1101 AM CDT SUN JUN 23 2024  
   
..FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE
 
 
* WHAT...MODERATE FLOODING IS OCCURRING.  
 
* WHERE...BIG SIOUX RIVER NEAR EGAN.  
 
* WHEN...UNTIL FURTHER NOTICE.  
 
* IMPACTS...AT 1519.0 FEET, WATER IS ACROSS THE ROAD ON BOTH SIDES  
OF THE BRIDGE BY THE EGAN PARK, AND WATER REACHES THE BOTTOM OF  
THE BRIDGE ON HIGHWAY 34.  
 
* ADDITIONAL DETAILS...  
- AT 10:00 AM CDT SUNDAY THE STAGE WAS 1519.3 FEET.  
- RECENT ACTIVITY...THE MAXIMUM RIVER STAGE IN THE 24 HOURS  
ENDING AT 10:00 AM CDT SUNDAY WAS 1519.3 FEET.  
- FORECAST...NO FORECAST IS AVAILABLE FOR THIS LOCATION.  
- FLOOD STAGE IS 1516.5 FEET.  
- HTTP://WWW.WEATHER.GOV/SAFETY/FLOOD  
 

 
 
FLD OBSERVED FORECASTS (UNKNOWN TIME)  
LOCATION STG STG DAY/TIME D1 D2 D3  
 
BIG SIOUX RIVER  
EGAN 1516.5 1519.3 SUN 10 AM MSG MSG MSG  
 

 
 
LAT...LON 4404 9666 4404 9658 4394 9667 4394 9673  
 

 
 
SDC011-241815-  
/O.CON.KFSD.FL.W.0101.000000T0000Z-000000T0000Z/  
/SMCS2.2.ER.240622T1519Z.240623T1515Z.000000T0000Z.NR/  
1101 AM CDT SUN JUN 23 2024  
   
..FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE
 
 
* WHAT...MODERATE FLOODING IS OCCURRING. THIS APPROACHES THE FLOOD  
OF RECORD.  
 
* WHERE...SIXMILE CREEK NEAR BROOKINGS.  
 
* WHEN...UNTIL FURTHER NOTICE.  
 
* IMPACTS...AT 1635.0 FEET, THE EAST PARKING LOT AT SEXAUER PARK  
BEGINS TO FLOOD. TOWNSHIP ROADS NORTHEAST OF BROOKINGS BEGIN TO  
FLOOD.  
 
* ADDITIONAL DETAILS...  
- AT 10:15 AM CDT SUNDAY THE STAGE WAS 1635.0 FEET.  
- RECENT ACTIVITY...THE MAXIMUM RIVER STAGE IN THE 24 HOURS  
ENDING AT 10:15 AM CDT SUNDAY WAS 1635.0 FEET.  
- FORECAST...NO FORECAST IS AVAILABLE FOR THIS LOCATION.  
- FLOOD STAGE IS 1634.0 FEET.  
- HTTP://WWW.WEATHER.GOV/SAFETY/FLOOD  
 

 
 
FLD OBSERVED FORECASTS (UNKNOWN TIME)  
LOCATION STG STG DAY/TIME D1 D2 D3  
 
SIXMILE CREEK  
BROOKINGS 1634.0 1635.0 SUN 10 AM MSG MSG MSG  
 

 
 
LAT...LON 4446 9667 4444 9663 4433 9674 4428 9685  
4431 9685 4436 9676  
 

 
 
SDC101-241815-  
/O.CON.KFSD.FL.W.0098.000000T0000Z-000000T0000Z/  
/TRES2.2.ER.240622T1019Z.240623T1430Z.000000T0000Z.NO/  
1101 AM CDT SUN JUN 23 2024  
   
..FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE
 
 
* WHAT...MODERATE FLOODING IS OCCURRING.  
 
* WHERE...BIG SIOUX RIVER NEAR TRENT.  
 
* WHEN...UNTIL FURTHER NOTICE.  
 
* IMPACTS...AT 1496.0 FEET, 478TH AVENUE AND 242ND STREET BEGIN TO  
FLOOD.  
 
* ADDITIONAL DETAILS...  
- AT 10:15 AM CDT SUNDAY THE STAGE WAS 1496.8 FEET.  
- RECENT ACTIVITY...THE MAXIMUM RIVER STAGE IN THE 24 HOURS  
ENDING AT 10:15 AM CDT SUNDAY WAS 1496.9 FEET.  
- FORECAST...NO FORECAST IS AVAILABLE FOR THIS LOCATION.  
- FLOOD STAGE IS 1495.0 FEET.  
- HTTP://WWW.WEATHER.GOV/SAFETY/FLOOD  
 

 
 
FLD OBSERVED FORECASTS (UNKNOWN TIME)  
LOCATION STG STG DAY/TIME D1 D2 D3  
 
BIG SIOUX RIVER  
TRENT 1495.0 1496.8 SUN 10 AM MSG MSG MSG  
 

 
 
LAT...LON 4394 9673 4394 9667 4389 9663 4385 9663  
4385 9668 4388 9668  
 

 
 
KALIN  
 
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