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: 2025-05-15
 Forecast Period: May 15 to September 1
Exceedence
Probability 		Stage
feet 		Discharge
CFS 		Probable
Date of Peak
95 % 140.00 4029 2025-05-27
90 % 140.03 4115 2025-05-28
70 % 140.47 5193 2025-06-06
50 % 141.01 6734 2025-06-10
30 % 141.52 8314 2025-07-04
10 % 142.39 11390 2025-08-22
05 % 142.71 12675 2025-08-29

Peakflow exceedence plot for NRKW1

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