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 2025
Ensemble Date: 2025-07-18
 Forecast Period: July 18 to November 1
Exceedence
Probability 		Stage
feet 		Discharge
CFS 		Probable
Date of Peak
95 % 138.94 2268 2025-08-27
90 % 139.53 3452 2025-09-08
70 % 140.84 6742 2025-10-10
50 % 141.78 9636 2025-10-20
30 % 143.17 14745 2025-10-27
10 % 144.15 19034 2025-10-31
05 % 144.88 22806 2025-11-01

Peakflow exceedence plot for NRKW1

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