Peakflow Forecasts Header

WENATCHEE--AT PESHASTIN
   State:  Washington    County:  CHELAN
   Latitude:  47 35' 3" North    Longitude:  120 37' 12" West
   Elevation:  1028 feet
   Supporting WFO:  Spokane    
   Action Stage:  12'   Flood Stage:  13'   Moderate Flood Stage:  14'
   Major Flood Stage:  15'

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.

WENATCHEE--AT PESHASTIN   (PESW1)
Forecasts for Water Year 2024
Ensemble Date: 2024-04-24
 Forecast Period: April 24 to August 1
Exceedence
Probability 		Stage
feet 		Discharge
CFS 		Probable
Date of Peak
95 % 7.36 8814 2024-05-14
90 % 7.89 10022 2024-05-18
70 % 8.35 11124 2024-05-28
50 % 9.09 12966 2024-06-02
30 % 9.83 14910 2024-06-08
10 % 10.30 16186 2024-06-26
05 % 10.59 16985 2024-06-29

Peakflow exceedence plot for PESW1

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