KOOTENAI − AT PORTHILL (PORI1)
   State:  Idaho
   County:  Boundary
   Latitude:  48 59' 46" North
   Longitude:  116 30' 22" West
   Elevation:  1700 ft

   Supporting NWS Forecast Office: WFO Spokane

   
Click for NWS Official River Forecasts for PORI1
   

Daily Historical Statistics for October 24, 2026
Mean Flow: 5350 cfs
Max Flow: 8720 cfs (2017)
Min Flow: 4450 cfs (2016)

Statistics based on water years: 2014-2025
* 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 PORI1

Data Used In Plot   "label   USGS Observations   


Hydrograph plot for PORI1

Data Used In Plot   "label   United States Geological Survey