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: 2026-04-14
Forecast Period: April 14 to August 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 4.27 870 2026-04-27
90 % 4.35 952 2026-05-03
70 % 4.61 1256 2026-05-15
50 % 4.80 1500 2026-05-25
30 % 5.28 2267 2026-06-01
10 % 5.54 2775 2026-07-01
05 % 5.69 3088 2026-07-09

Peakflow exceedence plot for MFNW1

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