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
2022
Ensemble Date: 2021-12-08
Forecast Period: December 8 to April 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 5.15 4330 2021-12-12
90 % 5.15 4330 2021-12-12
70 % 5.34 4674 2021-12-29
50 % 6.17 6288 2022-01-18
30 % 6.74 7459 2022-02-19
10 % 8.01 10304 2022-03-23
05 % 8.60 11724 2022-03-28

Peakflow exceedence plot for PESW1

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