GREEN − NEAR PALMER (GPUW1)
   State:  Washington
   County:  King
   Latitude:  47 18' 0" North
   Longitude:  121 51' 0" West
   Elevation:  860 ft

   Supporting NWS Forecast Office: WFO Seattle

   
Click for NWS Official River Forecasts for GPUW1
   

Daily Historical Statistics for July 11, 2026
Mean Stage: 4.06 ft  Mean Flow: 328 cfs
Max Stage: 5.57 ft  Max Flow: 954 cfs (1964)
Min Stage:  3.09 ft   Min Flow: 121 cfs (1967)

Statistics based on water years: 1963-2024
* 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 GPUW1

Data Used In Plot   "label   USGS Observations