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
2027
Ensemble Date: 2026-10-09
Forecast Period: October 9 to February 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 6.68 960 2026-11-24
90 % 6.80 1066 2026-12-05
70 % 7.31 1527 2026-12-24
50 % 7.53 1739 2027-01-07
30 % 7.94 2217 2027-01-16
10 % 8.28 2670 2027-01-27
05 % 9.08 3860 2027-01-30

Peakflow exceedence plot for TRBO3

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