FLATHEAD − AT PERMA (PERM8)
   State:  Montana
   County:  Sanders
   Latitude:  47 22' 3" North
   Longitude:  114 35' 3" West
   Elevation:  2569 ft

   Supporting NWS Forecast Office: WFO Missoula

   
Click for NWS Official River Forecasts for PERM8
   

Daily Historical Statistics for February 08, 2026
Mean Stage: 9.34 ft  Mean Flow: 9580 cfs
Max Stage: 11.47 ft  Max Flow: 15700 cfs (1991)
Min Stage:  6.86 ft   Min Flow: 4120 cfs (2001)

Statistics based on water years: 1984-2025
* 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 PERM8

Data Used In Plot   "label   USGS Observations   


Hydrograph plot for PERM8

Data Used In Plot   "label   USGS Observations