Peakflow Forecasts Header

PUDDING--AT AURORA
   State:  Oregon    County:  MARION
   Latitude:  45 14' 0" North    Longitude:  122 45' 1" West
   Elevation:  72 feet
   Supporting WFO:  Portland    
   Action Stage:  21'   Flood Stage:  22'   Moderate Flood Stage:  26'
   Major Flood Stage:  29'

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.

PUDDING--AT AURORA   (AURO3)
Forecasts for Water Year 2026
Ensemble Date: 2026-08-16
 Forecast Period: August 16 to December 1
Exceedence
Probability 		Stage
feet 		Discharge
CFS 		Probable
Date of Peak
95 % 8.08 505 2026-10-21
90 % 8.55 609 2026-11-01
70 % 12.69 1843 2026-11-14
50 % 16.40 3282 2026-11-23
30 % 19.79 4766 2026-11-27
10 % 23.51 7685 2026-11-30
05 % 23.76 8130 2026-11-30

Peakflow exceedence plot for AURO3

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