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UMATILLA--AT PENDLETON
   State:  Oregon    County:  UMATILLA
   Latitude:  45 40' 15" North    Longitude:  118 47' 30" West
   Elevation:  1050 feet
   Supporting WFO:  Pendleton    
   Action Stage:  11'   Flood Stage:  12.3'   Moderate Flood Stage:  13.5'
   Major Flood Stage:  17'

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.

UMATILLA--AT PENDLETON   (PDTO3)
Forecasts for Water Year 2024
Ensemble Date: 2024-04-15
 Forecast Period: April 15 to August 1
Exceedence
Probability 		Stage
feet 		Discharge
CFS 		Probable
Date of Peak
95 % 6.12 1010 2024-04-16
90 % 6.12 1010 2024-04-16
70 % 6.32 1202 2024-05-02
50 % 6.83 1735 2024-05-10
30 % 7.38 2330 2024-05-18
10 % 8.58 3785 2024-05-29
05 % 11.07 7226 2024-06-01

Peakflow exceedence plot for PDTO3

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