Peakflow Forecasts Header

MF NOOKSACK--NEAR DEMING
   State:  Washington    County:  WHATCOM
   Latitude:  48 46' 45" North    Longitude:  122 6' 23" West
   Elevation:  580 feet
   Supporting WFO:  Seattle    

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.

MF NOOKSACK--NEAR DEMING   (MFNW1)
Forecasts for Water Year
2026
Ensemble Date: 2026-07-15
Forecast Period: July 15 to November 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 3.92 594 2026-08-14
90 % 4.13 759 2026-08-22
70 % 4.91 1655 2026-09-27
50 % 5.50 2679 2026-10-16
30 % 5.95 3681 2026-10-22
10 % 6.36 4760 2026-10-30
05 % 6.74 5920 2026-10-31

Peakflow exceedence plot for MFNW1

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