YAAK − NEAR TROY (TRYM8)
   State:  Montana
   County:  Lincoln
   Latitude:  48 33' 42" North
   Longitude:  115 58' 9" West
   Elevation:  1839 ft

   Supporting NWS Forecast Office: WFO Missoula

   
Click for NWS Official River Forecasts for TRYM8
   


   Action Stage:  
7.5 ft
   Flood Stage:  
8 ft
   Moderate Flood Stage:  
9 ft
   Major Flood Stage:  
10 ft
Daily Historical Statistics for May 13, 2026
Mean Stage: 6.56 ft  Mean Flow: 3350 cfs
Max Stage: 8.62 ft  Max Flow: 9050 cfs (1997)
Min Stage:  4.60 ft   Min Flow: 988 cfs (2010)

Statistics based on water years: 1957-2025
* statistics estimated based on current rating

Record Stage: 
11.4 ft
Date of Record: 
May 20, 1954

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

Hydrograph plot for TRYM8

Data Used In Plot   "label   USGS Observations