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
2024
Ensemble Date: 2024-04-25
Forecast Period: April 25 to August 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 9.19 8455 2024-05-07
90 % 9.70 10058 2024-05-09
70 % 10.34 12278 2024-05-16
50 % 10.67 13527 2024-05-21
30 % 10.98 14797 2024-05-27
10 % 12.41 21016 2024-06-10
05 % 13.60 27218 2024-06-14

Peakflow exceedence plot for GLBW1

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