NOOKSACK − AT FERNDALE (NKSW1)
   State:  Washington
   County:  Whatcom
   Latitude:  48 50' 42" North
   Longitude:  122 35' 18" West
   Elevation:  5 ft

   Supporting NWS Forecast Office: WFO Seattle

   
Click for NWS Official River Forecasts for NKSW1
   


   Action Stage:  
15 ft
   Flood Stage:  
18 ft
   Moderate Flood Stage:  
20.5 ft
   Major Flood Stage:  
23 ft
Daily Historical Statistics for March 14, 2026
Mean Stage: 7.02 ft  Mean Flow: 4080 cfs
Max Stage: 14.66 ft  Max Flow: 16200 cfs (2003)
Min Stage:  4.65 ft   Min Flow: 1530 cfs (1985)

Statistics based on water years: 1967-2024
* statistics estimated based on current rating

Record Stage: 
31.23 ft
Record Flow: 
57000 cfs
Date of Record: 
November 10, 1990

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

Hydrograph plot for NKSW1

Data Used In Plot   "label   USGS Observations   


Hydrograph plot for NKSW1

Data Used In Plot   "label   USGS Observations