River Information and Forecasts Header
EF LEWIS--NEAR HEISSON (HSSW1)
   State:  Washington    County:  Clark
   Latitude:  45 50' 13" North    Longitude:  122 27' 54" West
   Elevation:  366 feet
   Supporting WFO:  Portland    NWS Official River Forecasts Click Here


   Record Stage:  
N/A
Daily Historical Flow Statistics
for December 04

Mean Stage: 14.10 ft  Mean Flow: 1520 cfs
Max Stage: 18.44 ft  Max Flow: 8310 cfs (1976)
Min Stage:  10.15 ft   Min Flow: 47 cfs (1930)

Statistics based on water years: 1930-2021
The 4-10 Day Trend Forecast is based on model guidance only. Daily variation and uncertainty of forecasts during this period is high.

Hydrograph plot for HSSW1

For Data Used In Plot   "label