MF SALMON − AT MOUTH NR SHOUP (MSSI1)
   State:  Idaho
   County:  Lemhi
   Latitude:  45 17' 38" North
   Longitude:  114 35' 42" West
   Elevation:  3040 ft

   Supporting NWS Forecast Office: WFO Missoula

   
Click for NWS Official River Forecasts for MSSI1
   

Daily Historical Statistics for July 13, 2026
Mean Stage: 33.46 ft  Mean Flow: 3050 cfs
Max Stage: 36.70 ft  Max Flow: 7490 cfs (2011)
Min Stage:  31.34 ft   Min Flow: 1290 cfs (2021)

Statistics based on water years: 1994-2024
* statistics estimated based on current rating

The 4-10 Day Trend Forecast is based on model guidance and uncertainty during this period is greater.

Hydrograph plot for MSSI1

Data Used In Plot   "label   USGS Observations