Peakflow Forecasts Header

NESTUCCA--NEAR BEAVER
   State:  Oregon    County:  TILLAMOOK
   Latitude:  45 15' 58" North    Longitude:  123 50' 49" West
   Elevation:  43 feet
   Supporting WFO:  Portland    
   Action Stage:  16'   Flood Stage:  18'   Moderate Flood Stage:  20'
   Major Flood Stage:  21'

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.

NESTUCCA--NEAR BEAVER   (BEAO3)
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 % 4.12 106 2026-06-09
90 % 4.12 106 2026-06-09
70 % 4.26 135 2026-07-01
50 % 4.52 204 2026-08-23
30 % 4.76 287 2026-09-19
10 % 5.38 587 2026-09-29
05 % 6.15 1168 2026-10-01

Peakflow exceedence plot for BEAO3

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