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
2027
Ensemble Date: 2026-10-13
Forecast Period: October 13 to February 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 4.82 1529 2026-10-31
90 % 4.92 1678 2026-11-04
70 % 5.79 3312 2026-11-13
50 % 6.25 4445 2026-11-22
30 % 6.66 5661 2026-12-02
10 % 8.20 11938 2027-01-07
05 % 8.96 16078 2027-01-25

Peakflow exceedence plot for MFNW1

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