Peakflow Forecasts Header

SKYKOMISH--NEAR GOLD BAR
   State:  Washington    County:  SNOHOMISH
   Latitude:  47 50' 7" North    Longitude:  121 39' 36" West
   Elevation:  209 feet
   Supporting WFO:  Seattle    
   Action Stage:  12.2'   Flood Stage:  15'   Moderate Flood Stage:  17'
   Major Flood Stage:  19'

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.

SKYKOMISH--NEAR GOLD BAR   (GLBW1)
Forecasts for Water Year 2026
Ensemble Date: 2026-01-23
 Forecast Period: January 23 to May 1
Exceedence
Probability 		Stage
feet 		Discharge
CFS 		Probable
Date of Peak
95 % 9.64 9450 2026-02-06
90 % 10.13 10920 2026-02-08
70 % 10.93 13545 2026-02-20
50 % 12.74 20538 2026-03-05
30 % 14.31 27976 2026-03-27
10 % 17.33 47842 2026-04-24
05 % 18.84 60036 2026-04-30

Peakflow exceedence plot for GLBW1

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