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: 2026-06-06
 Forecast Period: June 6 to October 1
Exceedence
Probability 		Stage
feet 		Discharge
CFS 		Probable
Date of Peak
95 % 4.11 270 2026-06-09
90 % 4.11 270 2026-06-09
70 % 4.11 270 2026-06-09
50 % 4.11 270 2026-06-09
30 % 4.28 356 2026-09-15
10 % 5.08 993 2026-09-28
05 % 5.46 1422 2026-10-01

Peakflow exceedence plot for TLMO3

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