Peakflow Forecasts Header

NOOKSACK--AT CEDARVILLE
   State:  Washington    County:  WHATCOM
   Latitude:  48 50' 31" North    Longitude:  122 17' 37" West
   Elevation:  0 feet
   Supporting WFO:  Seattle    
   Action Stage:  144.8'   Flood Stage:  146.5'   Moderate Flood Stage:  148'
   Major Flood Stage:  150'

Forecasts are calculated from a forecast time series that approximates flow at a 6 hour time step interval. Observed instantaneous peaks can be higher than model forecast peaks.

NOOKSACK--AT CEDARVILLE   (NRKW1)
Forecasts for Water Year 2026
Ensemble Date: 2025-11-16
 Forecast Period: November 16 to March 1
Exceedence
Probability 		Stage
feet 		Discharge
CFS 		Probable
Date of Peak
95 % 142.19 10921 2025-11-28
90 % 142.57 12324 2025-11-29
70 % 143.28 15156 2025-12-10
50 % 143.96 18138 2025-12-28
30 % 144.73 22044 2026-01-14
10 % 145.86 28775 2026-02-03
05 % 146.01 29781 2026-02-20

Peakflow exceedence plot for NRKW1

 Click to download runoff traces used in forecast.  Click for comma delimited data used in plot.csv icon