COLUMBIA − AT ST HELENS (SHNO3)
   State:  Oregon
   County:  Columbia
   Latitude:  45 52' 49" North
   Longitude:  122 47' 45" West
   Elevation:  1 ft

   Supporting NWS Forecast Office: WFO Portland
   Click for NWS Official River Forecasts for SHNO3
   

   Action Stage:  14.5 ft
   Flood Stage:  15.5 ft
   Moderate Flood Stage:  18 ft
   Major Flood Stage:  21 ft

Record Stage: 27.1 ft
Date of Record: June 14, 1948

The 4-10 Day Trend Forecast is based on model guidance and uncertainty during this period is greater.

Hydrograph plot for SHNO3

Data Used In Plot   "label   ---


Hydrograph plot for SHNO3

Data Used In Plot   "label   ---