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SILETZ--AT SILETZ
   State:  Oregon    County:  LINCOLN
   Latitude:  44 42' 54" North    Longitude:  123 53' 15" West
   Elevation:  102 feet
   Supporting WFO:  Portland    
   Action Stage:  12'   Flood Stage:  16'   Moderate Flood Stage:  20'
   Major Flood Stage:  25'

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.

SILETZ--AT SILETZ   (SILO3)
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 % 4.53 1203 2026-10-21
90 % 4.95 1532 2026-11-01
70 % 7.52 4246 2026-11-15
50 % 10.16 7976 2026-11-21
30 % 12.26 11483 2026-11-24
10 % 17.91 23183 2026-11-30
05 % 22.62 35189 2026-11-30

Peakflow exceedence plot for SILO3

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