Peakflow Forecasts Header

TRASK--TILLAMOOK
   State:  Oregon    County:  TILLAMOOK
   Latitude:  45 26' 47" North    Longitude:  123 42' 33" West
   Elevation:  50 feet
   Supporting WFO:  Portland    
   Action Stage:  15'   Flood Stage:  16.5'
   Major Flood Stage:  
22'

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.

TRASK--TILLAMOOK   (TRAO3)
Forecasts for Water Year
2022
Ensemble Date: 2021-12-08
Forecast Period: December 8 to April 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 11.79 4871 2021-12-21
90 % 12.54 5923 2021-12-24
70 % 13.93 8114 2022-01-02
50 % 15.28 10400 2022-01-13
30 % 16.57 12813 2022-02-01
10 % 17.63 14960 2022-03-05
05 % 17.97 15655 2022-03-27

Peakflow exceedence plot for TRAO3

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