River Forecast
Issued by NWS
Issued by NWS
731
FGUS53 KKRF 300052
RVFSIO
RIVER FORECAST
NWS MISSOURI BASIN RIVER FORECAST CENTER PLEASANT HILL MO
0051Z WED JUL 30 2025
:
: THIS PRODUCT HAS PRELIMINARY DATA AND SUBJECT TO REVISION.
: REFER TO YOUR LOCAL WFO FOR THE LATEST OFFICIAL RIVER FORECAST.
: FORECAST GROUP IS SIOUXS
: *** EVENING FORECAST ***
: **********************************************************
: *** THESE FORECASTS ARE SIGNIFICANTLY AFFECTED BY QPF ***
: **********************************************************
: ==> This forecast includes obsd precip & 24 hours of QPF
RIVER/STATION FS TDY F O R E C A S T
LITTLE SIOUX RIVER
MILFORD 3 W IA 13.0 10.3E CREST NEAR 12.1 FT 07/31
EARLY PM
SPENCER NO.2 IA 10.0 7.1 CREST NEAR 10.1 FT 08/01
EARLY AM
LINN GROVE IA 16.5 9.8 CREST NEAR 14.4 FT 08/02
EARLY PM
BIG SIOUX RIVER
WATERTOWN SD 9.0 8.4 CONTINUE TO FALL..LAST FCST
WATERTOWN SD 10.5 10.0 CONTINUE TO FALL..LAST FCST
CASTLEWOOD 1 NW SD 9.0 11.4 FALL BLO FS 08/02 LATE PM
BROOKINGS 10 SE SD 9.0 5.1 CREST NEAR 9.5 FT 08/01 AM
:________________________________________________________________
:MILFORD 3 W, IA - LITTLE SIOUX RIVER HSA - FSD
:MINOR FLOOD STAGE 13.0 FT FCST ISSUANCE STAGE 11.0 FT
:MODERATE FLOOD STAGE 16.0 FT MAJOR FLOOD STAGE 20.0 FT
:LATEST ESTIMATED RIVER STAGE 10.3 FT AT 0000Z ON JUL 30
:obs Stage / 06Z / 12Z / 18Z / 00Z
: 0729 / 10.1E / 10.1E / 10.2E / 10.3E
:
.AR :CREST: MIFI4 0731 Z DC202507300051/DH1800/HGIFFXZ 12.1
.ER MIFI4 20250730 Z DC202507300051/DH06/HGIFFZZ/DIH6
:Stage Fcst / 12Z / 18Z / 00Z / 06Z
.E1 : 0729 : / 10.4
.E2 : 0730 : / 11.2 / 11.6 / 11.8 / 11.9
.E3 : 0731 : / 12.0 / 12.1 / 12.1 / 12.1
.E4 : 0801 : / 12.1 / 12.0 / 12.0 / 12.0
.E5 : 0802 : / 11.9 / 11.9 / 11.8 / 11.7
.E6 : 0803 : / 11.7 / 11.6 / 11.5
:Local observed 6-hr basin-averaged precip(inches) (PAST 24 hrs):
: / 06Z / 12Z / 18Z / 00Z
: 0729 / 0.32 / 0.01 / 0.42 / 0.07
:
:Local observed 24-hr basin-averaged precip total
: QPE Total Ending Jul 30 at 00Z is 0.82 inches
:
:Local forecast 6-hr basin-averaged precip(inches) (NEXT 24 hrs):
: / 12Z / 18Z / 00Z / 06Z
: 0729 / 0.27
: 0730 / 1.18 / 0.13 / 0.04
:
:Local forecast 24-hr basin-averaged precip total
: QPF Total Ending Jul 31 1.62 inches
:________________________________________________________________
:SPENCER NO.2, IA - LITTLE SIOUX RIVER HSA - FSD
:MINOR FLOOD STAGE 10.0 FT FCST ISSUANCE STAGE 9.0 FT
:MODERATE FLOOD STAGE 14.0 FT MAJOR FLOOD STAGE 16.0 FT
:LATEST RIVER STAGE 7.1 FT AT 2315Z ON JUL 29
:obs Stage / 06Z / 12Z / 18Z / 00Z
: 0729 / 6.7 / 6.8 / 7.0 / 7.1
:
:RISE ABOVE FLOOD STAGE AROUND 00Z ON 08/01/2025
.AR :CREST: SPWI4 0801 Z DC202507300051/DH0600/HGIFFXZ 10.1
:FALL BELOW FLOOD STAGE AROUND 21Z ON 08/01/2025
.ER SPWI4 20250730 Z DC202507300051/DH06/HGIFFZZ/DIH6
:Stage Fcst / 12Z / 18Z / 00Z / 06Z
.E1 : 0729 : / 7.3
.E2 : 0730 : / 7.9 / 8.6 / 9.0 / 9.4
.E3 : 0731 : / 9.6 / 9.8 / 10.0 / 10.1
.E4 : 0801 : / 10.1 / 10.0 / 10.0 / 9.9
.E5 : 0802 : / 9.8 / 9.8 / 9.7 / 9.6
.E6 : 0803 : / 9.6 / 9.5 / 9.5
:Local observed 6-hr basin-averaged precip(inches) (PAST 24 hrs):
: / 06Z / 12Z / 18Z / 00Z
: 0729 / 0.48 / 0.01 / 0.29 / 0.00
:
:Local observed 24-hr basin-averaged precip total
: QPE Total Ending Jul 29 at 23Z is 0.78 inches
:
:Local forecast 6-hr basin-averaged precip(inches) (NEXT 24 hrs):
: / 12Z / 18Z / 00Z / 06Z
: 0729 / 0.29
: 0730 / 0.67 / 0.25 / 0.05
:
:Local forecast 24-hr basin-averaged precip total
: QPF Total Ending Jul 31 1.26 inches
:________________________________________________________________
:LINN GROVE, IA - LITTLE SIOUX RIVER HSA - FSD
:MINOR FLOOD STAGE 16.5 FT FCST ISSUANCE STAGE 14.0 FT
:MODERATE FLOOD STAGE 20.0 FT MAJOR FLOOD STAGE 22.5 FT
:LATEST RIVER STAGE 9.8 FT AT 0000Z ON JUL 30
:obs Stage / 06Z / 12Z / 18Z / 00Z
: 0729 / 9.1 / 9.2 / 9.4 / 9.8
:
.AR :CREST: LNNI4 0802 Z DC202507300051/DH1800/HGIFFXZ 14.4
.ER LNNI4 20250730 Z DC202507300051/DH06/HGIFFZZ/DIH6
:Stage Fcst / 12Z / 18Z / 00Z / 06Z
.E1 : 0729 : / 10.2
.E2 : 0730 : / 10.7 / 11.3 / 11.9 / 12.3
.E3 : 0731 : / 12.6 / 12.8 / 13.0 / 13.2
.E4 : 0801 : / 13.5 / 13.8 / 14.0 / 14.2
.E5 : 0802 : / 14.3 / 14.4 / 14.4 / 14.3
.E6 : 0803 : / 14.2 / 14.0 / 13.9
:Local observed 6-hr basin-averaged precip(inches) (PAST 24 hrs):
: / 06Z / 12Z / 18Z / 00Z
: 0729 / 0.41 / 0.00 / 0.60 / 0.00
:
:Local observed 24-hr basin-averaged precip total
: QPE Total Ending Jul 30 at 00Z is 1.01 inches
:
:Local forecast 6-hr basin-averaged precip(inches) (NEXT 24 hrs):
: / 12Z / 18Z / 00Z / 06Z
: 0729 / 0.38
: 0730 / 0.71 / 0.22 / 0.05
:
:Local forecast 24-hr basin-averaged precip total
: QPF Total Ending Jul 31 1.36 inches
:________________________________________________________________
:WATERTOWN, SD - BIG SIOUX RIVER HSA - ABR
:MINOR FLOOD STAGE 9.0 FT FCST ISSUANCE STAGE 8.0 FT
:MODERATE FLOOD STAGE 10.0 FT MAJOR FLOOD STAGE 12.0 FT
:LATEST RIVER STAGE 8.4 FT AT 0015Z ON JUL 30
:obs Stage / 06Z / 12Z / 18Z / 00Z
: 0729 / 8.2 / 8.4 / 8.4 / 8.4
.ER WBSS2 20250730 Z DC202507300051/DH06/HGIFFZZ/DIH6
:Stage Fcst / 12Z / 18Z / 00Z / 06Z
.E1 : 0729 : / 8.0
.E2 : 0730 : / 7.6 / 7.3 / 7.2 / 7.0
.E3 : 0731 : / 6.9 / 7.0 / 7.0 / 7.0
.E4 : 0801 : / 6.9 / 6.8 / 6.7 / 6.7
.E5 : 0802 : / 6.7 / 6.6 / 6.6 / 6.6
.E6 : 0803 : / 6.6 / 6.6 / 6.6
:Local observed 6-hr basin-averaged precip(inches) (PAST 24 hrs):
: / 06Z / 12Z / 18Z / 00Z
: 0729 / 0.00 / 0.00 / 0.00 / 0.00
:
:Local observed 24-hr basin-averaged precip total
: QPE Total Ending Jul 30 at 00Z is 0.00 inches
:
:Local forecast 6-hr basin-averaged precip(inches) (NEXT 24 hrs):
: / 12Z / 18Z / 00Z / 06Z
: 0729 / 0.00
: 0730 / 0.01 / 0.00 / 0.00
:
:Local forecast 24-hr basin-averaged precip total
: QPF Total Ending Jul 31 0.01 inches
:________________________________________________________________
:WATERTOWN, SD - BIG SIOUX RIVER HSA - ABR
:MINOR FLOOD STAGE 10.5 FT FCST ISSUANCE STAGE 10.0 FT
:MODERATE FLOOD STAGE 11.0 FT MAJOR FLOOD STAGE 13.5 FT
:LATEST RIVER STAGE 10.0 FT AT 0000Z ON JUL 30
:obs Stage / 06Z / 12Z / 18Z / 00Z
: 0729 / 9.9 / 10.1 / 10.1 / 10.0
.ER WBWS2 20250730 Z DC202507300051/DH06/HGIFFZZ/DIH6
:Stage Fcst / 12Z / 18Z / 00Z / 06Z
.E1 : 0729 : / 10.0
.E2 : 0730 : / 9.3 / 8.7 / 8.3 / 8.0
.E3 : 0731 : / 7.8 / 7.7 / 7.8 / 7.8
.E4 : 0801 : / 7.7 / 7.6 / 7.4 / 7.3
.E5 : 0802 : / 7.3 / 7.3 / 7.3 / 7.3
.E6 : 0803 : / 7.3 / 7.2 / 7.2
:Local observed 6-hr basin-averaged precip(inches) (PAST 24 hrs):
: / 06Z / 12Z / 18Z / 00Z
: 0729 / 0.00 / 0.00 / 0.00 / 0.00
:
:Local observed 24-hr basin-averaged precip total
: QPE Total Ending Jul 30 at 00Z is 0.00 inches
:
:Local forecast 6-hr basin-averaged precip(inches) (NEXT 24 hrs):
: / 12Z / 18Z / 00Z / 06Z
: 0729 / 0.02
: 0730 / 0.02 / 0.00 / 0.00
:
:Local forecast 24-hr basin-averaged precip total
: QPF Total Ending Jul 31 0.04 inches
:________________________________________________________________
:CASTLEWOOD 1 NW, SD - BIG SIOUX RIVER HSA - ABR
:MINOR FLOOD STAGE 9.0 FT FCST ISSUANCE STAGE 8.0 FT
:MODERATE FLOOD STAGE 11.0 FT MAJOR FLOOD STAGE 16.0 FT
:LATEST RIVER STAGE 11.4 FT AT 0045Z ON JUL 30
:obs Stage / 06Z / 12Z / 18Z / 00Z
: 0729 / 11.3 / 11.3 / 11.4 / 11.4
:
:FALL BELOW FLOOD STAGE AROUND 03Z ON 08/03/2025
.ER CSWS2 20250730 Z DC202507300051/DH06/HGIFFZZ/DIH6
:Stage Fcst / 12Z / 18Z / 00Z / 06Z
.E1 : 0729 : / 11.3
.E2 : 0730 : / 11.1 / 10.9 / 10.6 / 10.4
.E3 : 0731 : / 10.1 / 9.9 / 9.8 / 9.6
.E4 : 0801 : / 9.4 / 9.3 / 9.3 / 9.2
.E5 : 0802 : / 9.2 / 9.1 / 9.0 / 9.0
.E6 : 0803 : / 8.9 / 8.9 / 8.9
:Local observed 6-hr basin-averaged precip(inches) (PAST 24 hrs):
: / 06Z / 12Z / 18Z / 00Z
: 0729 / 0.05 / 0.00 / 0.00 / 0.00
:
:Local observed 24-hr basin-averaged precip total
: QPE Total Ending Jul 30 at 00Z is 0.05 inches
:
:Local forecast 6-hr basin-averaged precip(inches) (NEXT 24 hrs):
: / 12Z / 18Z / 00Z / 06Z
: 0729 / 0.01
: 0730 / 0.02 / 0.00 / 0.00
:
:Local forecast 24-hr basin-averaged precip total
: QPF Total Ending Jul 31 0.03 inches
:________________________________________________________________
:BROOKINGS 10 SE, SD - BIG SIOUX RIVER HSA - FSD
:MINOR FLOOD STAGE 9.0 FT FCST ISSUANCE STAGE 8.0 FT
:MODERATE FLOOD STAGE 10.5 FT MAJOR FLOOD STAGE 15.0 FT
:LATEST RIVER STAGE 5.1 FT AT 2345Z ON JUL 29
:obs Stage / 06Z / 12Z / 18Z / 00Z
: 0729 / 4.7 / 4.8 / 5.0 / 5.1
:
:RISE ABOVE FLOOD STAGE AROUND 21Z ON 07/31/2025
.AR :CREST: BRKS2 0801 Z DC202507300051/DH1200/HGIFFXZ 9.5
:FALL BELOW FLOOD STAGE AROUND 03Z ON 08/02/2025
.ER BRKS2 20250730 Z DC202507300051/DH06/HGIFFZZ/DIH6
:Stage Fcst / 12Z / 18Z / 00Z / 06Z
.E1 : 0729 : / 5.6
.E2 : 0730 : / 6.1 / 6.5 / 7.1 / 7.6
.E3 : 0731 : / 8.1 / 8.7 / 9.1 / 9.4
.E4 : 0801 : / 9.5 / 9.4 / 9.2 / 8.9
.E5 : 0802 : / 8.5 / 8.1 / 7.6 / 7.2
.E6 : 0803 : / 6.9 / 6.5 / 6.2
:Local observed 6-hr basin-averaged precip(inches) (PAST 24 hrs):
: / 06Z / 12Z / 18Z / 00Z
: 0729 / 0.03 / 0.00 / 0.00 / 0.01
:
:Local observed 24-hr basin-averaged precip total
: QPE Total Ending Jul 29 at 23Z is 0.04 inches
:
:Local forecast 6-hr basin-averaged precip(inches) (NEXT 24 hrs):
: / 12Z / 18Z / 00Z / 06Z
: 0729 / 0.08
: 0730 / 0.58 / 0.02 / 0.00
:
:Local forecast 24-hr basin-averaged precip total
: QPF Total Ending Jul 31 0.68 inches
:****************************************************************
:COMMENT
:
:
:HSA - Hydrologic Service Area
:WFO - Weather Forecast Office
:FSD - NWS WFO Sioux Falls, South Dakota
:DMX - NWS WFO Des Moines, Iowa
:OAX - NWS WFO Omaha, Nebraska
:ABR - NWS WFO Aberdeen, South Dakota
:OBS - Observed
:EST - Estimated
:M - Missing
:Stage Fcst - River Stage forecast including future precipitation
:Flow Fcst - River Flow forecast including future precipitation
:Precip - Precipitation
:QPE - Observed radar estimated precipitation
:QPF - Forecasted mean areal precipitation for local basin
:
:
$$
:MBRFC alc
:...END of MESSAGE...