Peakflow Forecasts Header

WILSON--NEAR TILLAMOOK
   State:  Oregon    County:  TILLAMOOK
   Latitude:  45 28' 31" North    Longitude:  123 43' 28" West
   Elevation:  42 feet
   Supporting WFO:  Portland    
   Action Stage:  10.5'   Flood Stage:  12'   Moderate Flood Stage:  15.5'
   Major Flood Stage:  19'

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.

WILSON--NEAR TILLAMOOK   (TLMO3)
Forecasts for Water Year 2027
Ensemble Date: 2026-10-05
 Forecast Period: October 5 to February 1
Exceedence
Probability 		Stage
feet 		Discharge
CFS 		Probable
Date of Peak
95 % 7.27 4489 2026-11-08
90 % 7.65 5311 2026-11-21
70 % 10.44 10965 2026-12-10
50 % 14.16 18416 2026-12-24
30 % 16.17 22549 2027-01-07
10 % 22.18 35222 2027-01-20
05 % 23.09 37166 2027-01-30

Peakflow exceedence plot for TLMO3

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