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 May 19, 2024
Mean Stage: 3.69 ft  Mean Flow: 4690 cfs
Max Stage: 7.00 ft  Max Flow: 11600 cfs (1969)
Min Stage:  0.60 ft   Min Flow: 178 cfs (1931)

Statistics based on water years: 1924-2022
* 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