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 September 24, 2023
Mean Stage: 10.24 ft  Mean Flow: 145 cfs
Max Stage: 11.49 ft  Max Flow: 597 cfs (2019)
Min Stage:  9.63 ft   Min Flow: 47 cfs (2017)

Statistics based on water years: 1992-2021
* 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

For Data Used In Plot   "label