Peakflow Forecasts Header

WHITE SALMON--NEAR UNDERWOOD
   State:  Washington    County:  KLICKITAT
   Latitude:  45 45' 0" North    Longitude:  121 32' 0" West
   Elevation:  113 feet
   Supporting WFO:  Pendleton    

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.

WHITE SALMON--NEAR UNDERWOOD   (UNDW1)
Forecasts for Water Year
2025
Ensemble Date: 2025-07-06
Forecast Period: July 6 to November 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 4.04 1008 2025-07-09
90 % 4.04 1008 2025-07-09
70 % 4.04 1008 2025-07-09
50 % 4.10 1064 2025-09-13
30 % 4.37 1349 2025-10-26
10 % 4.92 1991 2025-11-01
05 % 5.65 2842 2025-11-01

Peakflow exceedence plot for UNDW1

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