PILCHUCK − NEAR SNOHOMISH (PILW1)
   State:  Washington
   County:  Snohomish
   Latitude:  47 56' 6" North
   Longitude:  122 4' 18" West
   Elevation:  0 ft

   Supporting NWS Forecast Office: WFO Seattle

   
Click for NWS Official River Forecasts for PILW1
   


   Action Stage:  
16 ft
   Flood Stage:  
18 ft
   Moderate Flood Stage:  
20 ft
   Major Flood Stage:  
22 ft
Daily Historical Statistics for January 21, 2026
Mean Stage: 11.82 ft  Mean Flow: 843 cfs
Max Stage: 14.01 ft  Max Flow: 2730 cfs (2011)
Min Stage:  10.61 ft   Min Flow: 283 cfs (2013)

Statistics based on water years: 1993-2025
* statistics estimated based on current rating

Record Stage: 
20.39 ft

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

Hydrograph plot for PILW1

Data Used In Plot   "label   USGS Observations