State:  Washington
   County:  Snohomish
   Latitude:  48 12' 13" North
   Longitude:  122 7' 41" West
   Elevation:  65 ft

   Supporting NWS Forecast Office: WFO Seattle

Click for NWS Official River Forecasts for ARLW1

   Action Stage:  
12.5 ft
   Flood Stage:  
14 ft
   Moderate Flood Stage:  
17.5 ft
   Major Flood Stage:  
19 ft

Record Stage: 
21.16 ft
Record Flow: 
81200 cfs
Date of Record: 
December 12, 2010

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

Hydrograph plot for ARLW1

For Data Used In Plot   "label