Peakflow Forecasts Header

MCKENZIE--BELOW TRAIL BRIDGE DAM
   State:  Oregon    County:  LINN
   Latitude:  44 16' 5" North    Longitude:  122 2' 54" West
   Elevation:  1980 feet
   Supporting WFO:  Portland    

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.

MCKENZIE--BELOW TRAIL BRIDGE DAM   (TRBO3)
Forecasts for Water Year
2026
Ensemble Date: 2026-06-05
Forecast Period: June 5 to October 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 6.36 715 2026-06-05
90 % 6.36 715 2026-06-05
70 % 6.36 715 2026-06-05
50 % 6.36 715 2026-06-05
30 % 6.37 717 2026-06-09
10 % 6.59 888 2026-09-22
05 % 6.71 988 2026-09-29

Peakflow exceedence plot for TRBO3

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