Peakflow Forecasts Header

OWYHEE--OWYHEE DAM
   State:  Oregon    County:  MALHEUR
   Latitude:  43 38' 57" North    Longitude:  117 14' 48" West
   Elevation:  2400 feet
   Supporting WFO:  Boise    
   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.

OWYHEE--OWYHEE DAM   (OWYO3)
Forecasts for Water Year
2026
Ensemble Date: 2026-05-07
Forecast Period: May 7 to September 1
Exceedence
Probability
Inflow
CFS
Probable
Date of Peak
95 % 202 2026-05-20
90 % 255 2026-05-21
70 % 395 2026-05-28
50 % 451 2026-05-31
30 % 566 2026-06-10
10 % 835 2026-08-02
05 % 2672 2026-08-11

Peakflow exceedence plot for OWYO3

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