999
WGUS83 KFSD 310254
FLSFSD
FLOOD STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
954 PM CDT WED JUL 30 2025
...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN SOUTH
DAKOTA...IOWA...
BIG SIOUX RIVER NEAR BRUCE AFFECTING BROOKINGS COUNTY.
BIG SIOUX RIVER NEAR ESTELLINE AFFECTING BROOKINGS AND HAMLIN
COUNTIES.
FLOYD RIVER AT ALTON AFFECTING SIOUX AND PLYMOUTH COUNTIES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOTORISTS SHOULD NOT ATTEMPT TO DRIVE AROUND BARRICADES OR DRIVE
CARS THROUGH FLOODED AREAS.
TURN AROUND, DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
ADDITIONAL FORECAST INFORMATION IS AVAILABLE AT
WWW.WEATHER.GOV/SIOUXFALLS.
THE NEXT STATEMENT WILL BE ISSUED BY LATE THURSDAY NIGHT.
IAC149-167-010500-
/O.CON.KFSD.FL.W.0009.000000T0000Z-250801T0700Z/
/ALTI4.1.ER.250731T0100Z.250731T0245Z.250731T0700Z.NO/
954 PM CDT WED JUL 30 2025
..FLOOD WARNING REMAINS IN EFFECT UNTIL EARLY FRIDAY MORNING
* WHAT...MINOR FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST.
* WHERE...FLOYD RIVER AT ALTON.
* WHEN...UNTIL EARLY FRIDAY MORNING.
* IMPACTS...AT 12.0 FEET, FLOODING BEGINS TO AFFECT THE LOWER LYING
AGRICULTURAL LANDS ALONG THE RIVER.
* ADDITIONAL DETAILS...
- AT 9:45 PM CDT WEDNESDAY THE STAGE WAS 13.0 FEET.
- RECENT ACTIVITY...THE MAXIMUM RIVER STAGE IN THE 24 HOURS
ENDING AT 9:45 PM CDT WEDNESDAY WAS 13.0 FEET.
- FORECAST...THE RIVER IS EXPECTED TO RISE NEAR 13.7 FEET AND
THEN FALL BELOW FLOOD STAGE JUST AFTER MIDNIGHT TONIGHT AND
CONTINUE FALLING TO 6.5 FEET MONDAY EVENING.
- FLOOD STAGE IS 12.0 FEET.
- STAY UP TO DATE WITH THE LATEST RIVER OBSERVATIONS AND
FORECASTS AT: WWW.WATER.NOAA.GOV
FLD OBSERVED FORECASTS (7 PM CDT)
LOCATION STG STG DAY/TIME THU FRI SAT
FLOYD RIVER
ALTON 12.0 13.0 WED 9 PM 9.2 7.2 6.8
LAT...LON 4308 9594 4308 9587 4290 9605 4290 9612
4296 9606
SDC011-010500-
/O.CON.KFSD.FL.W.0008.000000T0000Z-000000T0000Z/
/BRCS2.1.ER.250729T1230Z.250731T0230Z.000000T0000Z.NO/
954 PM CDT WED JUL 30 2025
..FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE
* WHAT...MINOR FLOODING IS OCCURRING.
* WHERE...BIG SIOUX RIVER NEAR BRUCE.
* WHEN...UNTIL FURTHER NOTICE.
* IMPACTS...AT 9.5 FEET, THE RIGHT BANK OVERFLOWS FLOODING
AGRICULTURAL LANDS FOR AS MUCH AS 1/4 MILE.
* ADDITIONAL DETAILS...
- AT 9:45 PM CDT WEDNESDAY THE STAGE WAS 9.5 FEET.
- RECENT ACTIVITY...THE MAXIMUM RIVER STAGE IN THE 24 HOURS
ENDING AT 9:45 PM CDT WEDNESDAY WAS 9.5 FEET.
- FORECAST...NO FORECAST IS AVAILABLE FOR THIS LOCATION.
- FLOOD STAGE IS 8.0 FEET.
- STAY UP TO DATE WITH THE LATEST RIVER OBSERVATIONS AND
FORECASTS AT: WWW.WATER.NOAA.GOV
FLD OBSERVED FORECASTS (UNKNOWN TIME)
LOCATION STG STG DAY/TIME D1 D2 D3
BIG SIOUX RIVER
BRUCE 8.0 9.5 WED 9 PM MSG MSG MSG
LAT...LON 4450 9690 4450 9684 4449 9688 4440 9689
4433 9687 4433 9692 4442 9693
SDC011-057-010500-
/O.CON.KFSD.FL.W.0007.000000T0000Z-000000T0000Z/
/BSES2.2.ER.250728T1322Z.250729T0645Z.000000T0000Z.UU/
954 PM CDT WED JUL 30 2025
..FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE
* WHAT...MODERATE FLOODING IS OCCURRING.
* WHERE...BIG SIOUX RIVER NEAR ESTELLINE.
* WHEN...UNTIL FURTHER NOTICE.
* IMPACTS...AT 1645.5 FEET, WIDESPREAD FLOODING OF AGRICULTURAL
LANDS BEGINS.
* ADDITIONAL DETAILS...
- AT 9:00 PM CDT WEDNESDAY THE STAGE WAS 1645.6 FEET.
- RECENT ACTIVITY...THE MAXIMUM RIVER STAGE IN THE 24 HOURS
ENDING AT 9:00 PM CDT WEDNESDAY WAS 1645.8 FEET.
- FORECAST...NO FORECAST IS AVAILABLE FOR THIS LOCATION.
- FLOOD STAGE IS 1644.0 FEET.
- STAY UP TO DATE WITH THE LATEST RIVER OBSERVATIONS AND
FORECASTS AT: WWW.WATER.NOAA.GOV
FLD OBSERVED FORECASTS (UNKNOWN TIME)
LOCATION STG STG DAY/TIME D1 D2 D3
BIG SIOUX RIVER
ESTELLINE 1644.0 1645.6 WED 9 PM MSG MSG MSG
LAT...LON 4462 9700 4463 9696 4450 9684 4450 9690
DUX
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