KOOTENAI − AT PORTHILL (PORI1)
   State:  Idaho
   County:  Boundary
   Latitude:  48 59' 46" North
   Longitude:  116 30' 22" West
   Elevation:  0 ft

   Supporting NWS Forecast Office: WFO Spokane
   Click for NWS Official River Forecasts for PORI1
   
Daily Historical Statistics for March 12, 2026
Mean Flow: 10200 cfs
Max Flow: 18500 cfs (2016)
Min Flow: 5450 cfs (2023)

Statistics based on water years: 2014-2024
* 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 PORI1

Data Used In Plot   "label   USGS Observations   


Hydrograph plot for PORI1

Data Used In Plot   "label   ---