439  
FGUS53 KKRF 231551  
RVFUMO  
 
RIVER FORECAST  
NWS MISSOURI BASIN RIVER FORECAST CENTER PLEASANT HILL MO  
1550Z THU APR 23 2026  
:  
: THIS PRODUCT HAS PRELIMINARY DATA AND SUBJECT TO REVISION.  
: REFER TO YOUR LOCAL WFO FOR THE LATEST OFFICIAL RIVER FORECAST.  
 
: FORECAST GROUP IS UPRMO-RES  
 
: **********************************************************  
: *** R E S E R V O I R I N F L O W F O R E C A S T ***  
: **********************************************************  
 
: **************************************************************  
: *** THIS FORECAST INCLUDES PROJECTED SNOWMELT DUE TO ***  
: *** FORECASTED 6-HOUR MEAN TEMPERATURES FOR NEXT 15 DAYS. ***  
: **************************************************************  
 
: ==> THIS FORECAST INCLUDES OBSD PRECIP & 72 HOURS OF QPF  
 
:LIMA RESERVOIR, MT - RED ROCK RIVER HSA - TFX  
:LATEST ESTIMATED INFLOW 0.151 KCFS AT 1200Z ON APR 23  
 
:  
.ER LRRM8 20260423 Z DC202604231550/DH18/QIIFFZZ/DIH6  
:FLOW FCST / 12Z / 18Z / 00Z / 06Z  
.E1 : 0423 : / 0.152 / 0.151 / 0.151  
.E2 : 0424 : / 0.150 / 0.149 / 0.147 / 0.146  
.E3 : 0425 : / 0.145 / 0.144 / 0.142 / 0.141  
.E4 : 0426 : / 0.140 / 0.138 / 0.137 / 0.136  
.E5 : 0427 : / 0.134 / 0.133 / 0.132 / 0.131  
.E6 : 0428 : / 0.130 / 0.129 / 0.127 / 0.126  
.E7 : 0429 : / 0.125 / 0.124 / 0.123 / 0.123  
.E8 : 0430 : / 0.122  
 
:  
 
:CLARK CANYON DAM 18 SW, MT - BEAVERHEAD RIVER HSA - TFX  
:LATEST ESTIMATED INFLOW 0.079 KCFS AT 1200Z ON APR 23  
 
:  
.ER CLKM8 20260423 Z DC202604231550/DH18/QIIFFZZ/DIH6  
:FLOW FCST / 12Z / 18Z / 00Z / 06Z  
.E1 : 0423 : / 0.079 / 0.078 / 0.076  
.E2 : 0424 : / 0.078 / 0.078 / 0.079 / 0.079  
.E3 : 0425 : / 0.079 / 0.078 / 0.077 / 0.074  
.E4 : 0426 : / 0.075 / 0.076 / 0.077 / 0.079  
.E5 : 0427 : / 0.079 / 0.079 / 0.080 / 0.080  
.E6 : 0428 : / 0.079 / 0.078 / 0.077 / 0.076  
.E7 : 0429 : / 0.075 / 0.075 / 0.074 / 0.074  
.E8 : 0430 : / 0.074  
 
:  
 
:HEBGEN DAM, MT - MADISON RIVER HSA - TFX  
:LATEST ESTIMATED INFLOW 1.260 KCFS AT 1200Z ON APR 23  
 
:  
.ER HBDM8 20260423 Z DC202604231550/DH18/QIIFFZZ/DIH6  
:FLOW FCST / 12Z / 18Z / 00Z / 06Z  
.E1 : 0423 : / 1.296 / 1.300 / 1.290  
.E2 : 0424 : / 1.268 / 1.250 / 1.237 / 1.224  
.E3 : 0425 : / 1.207 / 1.187 / 1.168 / 1.151  
.E4 : 0426 : / 1.132 / 1.113 / 1.096 / 1.082  
.E5 : 0427 : / 1.066 / 1.054 / 1.046 / 1.039  
.E6 : 0428 : / 1.030 / 1.026 / 1.024 / 1.020  
.E7 : 0429 : / 1.016 / 1.020 / 1.027 / 1.033  
.E8 : 0430 : / 1.040  
 
:  
 
:CANYON FERRY DAM, MT - MISSOURI RIVER HSA - TFX  
:LATEST ESTIMATED INFLOW 3.846 KCFS AT 1200Z ON APR 23  
 
:  
.ER CYNM8 20260423 Z DC202604231550/DH18/QIIFFZZ/DIH6  
:FLOW FCST / 12Z / 18Z / 00Z / 06Z  
.E1 : 0423 : / 3.901 / 3.937 / 3.961  
.E2 : 0424 : / 4.001 / 4.044 / 4.087 / 4.127  
.E3 : 0425 : / 4.169 / 4.208 / 4.247 / 4.282  
.E4 : 0426 : / 4.302 / 4.292 / 4.263 / 4.228  
.E5 : 0427 : / 4.194 / 4.151 / 4.106 / 4.064  
.E6 : 0428 : / 4.027 / 3.988 / 3.947 / 3.906  
.E7 : 0429 : / 3.871 / 3.837 / 3.804 / 3.773  
.E8 : 0430 : / 3.754  
 
:  
 
:GIBSON DAM, MT - SUN RIVER HSA - TFX  
:LATEST ESTIMATED INFLOW 2.294 KCFS AT 1200Z ON APR 23  
 
:  
.ER AGSM8 20260423 Z DC202604231550/DH18/QIIFFZZ/DIH6  
:FLOW FCST / 12Z / 18Z / 00Z / 06Z  
.E1 : 0423 : / 2.413 / 2.456 / 2.465  
.E2 : 0424 : / 2.400 / 2.288 / 2.153 / 2.012  
.E3 : 0425 : / 1.875 / 1.747 / 1.630 / 1.525  
.E4 : 0426 : / 1.433 / 1.350 / 1.278 / 1.217  
.E5 : 0427 : / 1.165 / 1.122 / 1.086 / 1.056  
.E6 : 0428 : / 1.029 / 1.006 / 0.985 / 0.967  
.E7 : 0429 : / 0.951 / 0.935 / 0.922 / 0.913  
.E8 : 0430 : / 0.920  
 
:  
 
:TIBER DAM, MT - MARIAS RIVER HSA - TFX  
:LATEST ESTIMATED INFLOW 0.776 KCFS AT 1200Z ON APR 23  
 
:  
.ER TBRM8 20260423 Z DC202604231550/DH18/QIIFFZZ/DIH6  
:FLOW FCST / 12Z / 18Z / 00Z / 06Z  
.E1 : 0423 : / 0.800 / 0.859 / 0.966  
.E2 : 0424 : / 1.070 / 1.241 / 1.410 / 1.484  
.E3 : 0425 : / 1.446 / 1.318 / 1.157 / 0.998  
.E4 : 0426 : / 0.860 / 0.746 / 0.654 / 0.580  
.E5 : 0427 : / 0.524 / 0.479 / 0.441 / 0.411  
.E6 : 0428 : / 0.386 / 0.365 / 0.347 / 0.335  
.E7 : 0429 : / 0.332 / 0.333 / 0.326 / 0.317  
.E8 : 0430 : / 0.329  
 
:  
 
:****************************************************************  
:COMMENT  
:  
:  
:HSA - HYDROLOGIC SERVICE AREA  
:WFO - WEATHER FORECAST OFFICE  
:TFX - NWS WFO GREAT FALLS, MONTANA  
:BYZ - NWS WFO BILLINGS, MONTANA  
:GGW - NWS WFO GLASGOW, MONTANA  
: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 CWH  
:...END OF MESSAGE...  
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