LEWIS − ARIEL (MERW1)
   State:  Washington
   County:  Cowlitz
   Latitude:  45 57' 2" North
   Longitude:  122 33' 51" West
   Elevation:  44 ft

   Supporting NWS Forecast Office: WFO Portland

   
Click for NWS Official River Forecasts for MERW1
Daily Historical Statistics for March 26, 2025
Mean Stage: 4.41 ft  Mean Flow: 5840 cfs
Max Stage: 7.17 ft  Max Flow: 12000 cfs (1988)
Min Stage:  1.30 ft   Min Flow: 775 cfs (1955)

Statistics based on water years: 1924-2024
* 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 MERW1


For Data Used In Plot   "label