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 March 18, 2026
Mean Stage: 8.97 ft  Mean Flow: 8650 cfs
Max Stage: 13.71 ft  Max Flow: 23500 cfs (1996)
Min Stage:  6.87 ft   Min Flow: 4130 cfs (2005)

Statistics based on water years: 1984-2024
* 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 PERM8

Data Used In Plot   "label   USGS Observations   


Hydrograph plot for PERM8

Data Used In Plot   "label   USGS Observations