Peakflow Forecasts Header

KACHESS--KACHESS DAM
   State:  Washington    County:  KITTITAS
   Latitude:  47 16' 0" North    Longitude:  121 12' 0" West
   Elevation:  2269 feet
   Supporting WFO:  Pendleton    
   Inflow Data  

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.

KACHESS--KACHESS DAM   (KADW1)
Forecasts for Water Year
2025
Ensemble Date: 2025-05-12
Forecast Period: May 12 to September 1
Exceedence
Probability
Inflow
CFS
Probable
Date of Peak
95 % 420 2025-05-12
90 % 420 2025-05-12
70 % 420 2025-05-12
50 % 446 2025-05-28
30 % 528 2025-06-05
10 % 762 2025-06-11
05 % 825 2025-06-17

Peakflow exceedence plot for KADW1

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