Peakflow Forecasts Header

MILL CREEK--NR WALLA WALLA
   State:  Washington    County:  WALLA WALLA
   Latitude:  46 0' 29" North    Longitude:  118 7' 3" West
   Elevation:  1996 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.

MILL CREEK--NR WALLA WALLA   (MLKW1)
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 % 13.94 141 2025-05-13
90 % 13.94 141 2025-05-13
70 % 13.94 141 2025-05-13
50 % 14.04 168 2025-05-27
30 % 14.22 221 2025-06-05
10 % 14.74 472 2025-06-17
05 % 14.88 560 2025-06-20

Peakflow exceedence plot for MLKW1

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