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
2024
Ensemble Date: 2024-04-25
Forecast Period: April 25 to August 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 21.28 3266 2024-05-13
90 % 21.60 3855 2024-05-17
70 % 21.95 4520 2024-05-24
50 % 22.42 5445 2024-06-01
30 % 22.57 5739 2024-06-07
10 % 23.35 7337 2024-06-21
05 % 23.87 8444 2024-06-23

Peakflow exceedence plot for STHW1

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