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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 2025
Ensemble Date: 2025-05-12
 Forecast Period: May 12 to September 1
Exceedence
Probability 		Stage
feet 		Discharge
CFS 		Probable
Date of Peak
95 % 6.51 6973 2025-05-26
90 % 6.76 7508 2025-05-26
70 % 7.38 8852 2025-05-31
50 % 7.85 9926 2025-06-03
30 % 8.41 11256 2025-06-07
10 % 9.11 13006 2025-06-15
05 % 9.39 13741 2025-06-21

Peakflow exceedence plot for PESW1

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