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
2022
Ensemble Date: 2021-12-08
Forecast Period: December 8 to April 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 10.55 13152 2021-12-12
90 % 10.55 13152 2021-12-12
70 % 11.99 19060 2022-01-04
50 % 14.08 29954 2022-01-17
30 % 16.30 44775 2022-02-08
10 % 18.05 58835 2022-03-11
05 % 18.71 64720 2022-03-19

Peakflow exceedence plot for GLBW1

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