FGUS53 KKRF 181537
RVFUMO

RIVER FORECAST
NWS MISSOURI BASIN RIVER FORECAST CENTER PLEASANT HILL MO
1536Z MON MAY 18 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 0.107 KCFS AT 1200Z ON MAY 18


:
.ER LRRM8  20260518 Z DC202605181536/DH18/QIIFFZZ/DIH6
:Flow Fcst      /       12Z /       18Z /       00Z /       06Z 
.E1  : 0518 :               /     0.106 /     0.103 /     0.101 
.E2  : 0519 :   /     0.099 /     0.097 /     0.096 /     0.094 
.E3  : 0520 :   /     0.092 /     0.091 /     0.090 /     0.089 
.E4  : 0521 :   /     0.089 /     0.088 /     0.088 /     0.087 
.E5  : 0522 :   /     0.086 /     0.085 /     0.084 /     0.082 
.E6  : 0523 :   /     0.081 /     0.080 /     0.078 /     0.075 
.E7  : 0524 :   /     0.073 /     0.070 /     0.068 /     0.065 
.E8  : 0525 :   /     0.062 

:

:CLARK CANYON DAM 18 SW, MT - BEAVERHEAD RIVER     HSA - TFX
:LATEST ESTIMATED  INFLOW 0.073 KCFS AT 1200Z ON MAY 18


:
.ER CLKM8  20260518 Z DC202605181536/DH18/QIIFFZZ/DIH6
:Flow Fcst      /       12Z /       18Z /       00Z /       06Z 
.E1  : 0518 :               /     0.072 /     0.072 /     0.071 
.E2  : 0519 :   /     0.070 /     0.069 /     0.068 /     0.067 
.E3  : 0520 :   /     0.066 /     0.065 /     0.065 /     0.064 
.E4  : 0521 :   /     0.063 /     0.062 /     0.061 /     0.060 
.E5  : 0522 :   /     0.059 /     0.058 /     0.057 /     0.057 
.E6  : 0523 :   /     0.056 /     0.055 /     0.054 /     0.053 
.E7  : 0524 :   /     0.052 /     0.051 /     0.050 /     0.049 
.E8  : 0525 :   /     0.049 

:

:HEBGEN DAM, MT - MADISON RIVER     HSA - TFX
:LATEST ESTIMATED  INFLOW 1.561 KCFS AT 1200Z ON MAY 18


:
.ER HBDM8  20260518 Z DC202605181536/DH18/QIIFFZZ/DIH6
:Flow Fcst      /       12Z /       18Z /       00Z /       06Z 
.E1  : 0518 :               /     1.530 /     1.502 /     1.468 
.E2  : 0519 :   /     1.445 /     1.422 /     1.397 /     1.367 
.E3  : 0520 :   /     1.344 /     1.326 /     1.312 /     1.305 
.E4  : 0521 :   /     1.329 /     1.362 /     1.384 /     1.394 
.E5  : 0522 :   /     1.422 /     1.455 /     1.470 /     1.477 
.E6  : 0523 :   /     1.511 /     1.541 /     1.560 /     1.588 
.E7  : 0524 :   /     1.646 /     1.707 /     1.750 /     1.793 
.E8  : 0525 :   /     1.856 

:

:CANYON FERRY DAM, MT - MISSOURI RIVER     HSA - TFX
:LATEST ESTIMATED  INFLOW 4.228 KCFS AT 1200Z ON MAY 18


:
.ER CYNM8  20260518 Z DC202605181536/DH18/QIIFFZZ/DIH6
:Flow Fcst      /       12Z /       18Z /       00Z /       06Z 
.E1  : 0518 :               /     4.195 /     4.187 /     4.192 
.E2  : 0519 :   /     4.194 /     4.179 /     4.151 /     4.116 
.E3  : 0520 :   /     4.078 /     4.040 /     4.006 /     3.984 
.E4  : 0521 :   /     3.989 /     4.010 /     4.023 /     4.010 
.E5  : 0522 :   /     3.973 /     3.931 /     3.897 /     3.874 
.E6  : 0523 :   /     3.855 /     3.832 /     3.802 /     3.771 
.E7  : 0524 :   /     3.746 /     3.725 /     3.707 /     3.700 
.E8  : 0525 :   /     3.714 

:

:GIBSON DAM, MT - SUN RIVER     HSA - TFX
:LATEST ESTIMATED  INFLOW 1.811 KCFS AT 1200Z ON MAY 18


:
.ER AGSM8  20260518 Z DC202605181536/DH18/QIIFFZZ/DIH6
:Flow Fcst      /       12Z /       18Z /       00Z /       06Z 
.E1  : 0518 :               /     1.755 /     1.676 /     1.622 
.E2  : 0519 :   /     1.577 /     1.544 /     1.535 /     1.540 
.E3  : 0520 :   /     1.544 /     1.543 /     1.557 /     1.597 
.E4  : 0521 :   /     1.654 /     1.760 /     1.928 /     2.111 
.E5  : 0522 :   /     2.247 /     2.323 /     2.371 /     2.402 
.E6  : 0523 :   /     2.405 /     2.393 /     2.387 /     2.389 
.E7  : 0524 :   /     2.382 /     2.376 /     2.390 /     2.418 
.E8  : 0525 :   /     2.439 

:

:TIBER DAM, MT - MARIAS RIVER     HSA - TFX
:LATEST ESTIMATED  INFLOW 1.701 KCFS AT 1200Z ON MAY 18


:
.ER TBRM8  20260518 Z DC202605181536/DH18/QIIFFZZ/DIH6
:Flow Fcst      /       12Z /       18Z /       00Z /       06Z 
.E1  : 0518 :               /     1.656 /     1.601 /     1.507 
.E2  : 0519 :   /     1.423 /     1.348 /     1.272 /     1.213 
.E3  : 0520 :   /     1.153 /     1.094 /     1.037 /     0.980 
.E4  : 0521 :   /     0.926 /     0.905 /     0.891 /     0.881 
.E5  : 0522 :   /     0.883 /     0.906 /     0.952 /     1.014 
.E6  : 0523 :   /     1.072 /     1.110 /     1.119 /     1.107 
.E7  : 0524 :   /     1.085 /     1.064 /     1.046 /     1.032 
.E8  : 0525 :   /     1.025 

:

:****************************************************************
: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...