Peakflow Forecasts Header

STEHEKIN--AT STEHEKIN
   State:  Washington    County:  CHELAN
   Latitude:  48 19' 47" North    Longitude:  120 41' 26" West
   Elevation:  1099 feet
   Supporting WFO:  Spokane    
   Action Stage:  22'   Flood Stage:  24'

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.

STEHEKIN--AT STEHEKIN   (STHW1)
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 % 20.35 1828 2021-12-08
90 % 20.35 1828 2021-12-08
70 % 20.40 1899 2021-12-26
50 % 20.63 2232 2022-01-17
30 % 20.98 2789 2022-02-23
10 % 21.87 4456 2022-03-27
05 % 22.52 5775 2022-03-31

Peakflow exceedence plot for STHW1

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