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 2027
Ensemble Date: 2026-10-09
 Forecast Period: October 9 to February 1
Exceedence
Probability 		Stage
feet 		Discharge
CFS 		Probable
Date of Peak
95 % 141.98 10212 2026-10-30
90 % 142.05 10481 2026-11-03
70 % 143.68 17068 2026-11-17
50 % 144.24 19635 2026-11-27
30 % 145.15 24146 2026-12-28
10 % 147.12 36072 2027-01-28
05 % 148.60 48687 2027-01-30

Peakflow exceedence plot for NRKW1

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