SNAKE − AT HELLS CANYON DAM (HCDI1)
   State:  Idaho
   County:  Adams
   Latitude:  45 15' 5" North
   Longitude:  116 41' 49" West
   Elevation:  1400 ft

   Supporting NWS Forecast Office: WFO Pendleton

   
Click for NWS Official River Forecasts for HCDI1
Daily Historical Statistics for October 08, 2025
Mean Stage: 65.55 ft  Mean Flow: 14500 cfs
Max Stage: 69.00 ft  Max Flow: 27500 cfs (1998)
Min Stage:  63.39 ft   Min Flow: 8630 cfs (2004)

Statistics based on water years: 1966-2024
* 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 HCDI1


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Hydrograph plot for HCDI1


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Hydrograph plot for HCDI1


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Hydrograph plot for HCDI1


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