COWLITZ − NEAR KOSMOS (COKW1)
   State:  Washington
   County:  Lewis
   Latitude:  46 27' 58" North
   Longitude:  122 7' 5" West
   Elevation:  780 ft

   Supporting NWS Forecast Office: WFO Seattle

   
Click for NWS Official River Forecasts for COKW1
Daily Historical Statistics for July 13, 2025
Mean Stage: 67.66 ft  Mean Flow: 4070 cfs
Max Stage: 71.65 ft  Max Flow: 10700 cfs (1972)
Min Stage:  65.03 ft   Min Flow: 1380 cfs (1992)

Statistics based on water years: 1948-2022
* 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 COKW1


For Data Used In Plot   "label


Hydrograph plot for COKW1


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