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 2026
Ensemble Date: 2026-02-06
 Forecast Period: February 6 to June 1
Exceedence
Probability 		Stage
feet 		Discharge
CFS 		Probable
Date of Peak
95 % 6.31 2672 2026-02-19
90 % 6.40 2835 2026-02-21
70 % 7.02 4051 2026-03-03
50 % 7.53 5133 2026-03-16
30 % 8.02 6100 2026-03-30
10 % 12.47 14999 2026-04-12
05 % 16.64 23523 2026-04-22

Peakflow exceedence plot for TLMO3

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