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: 2026-01-23
Forecast Period: January 23 to May 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 7.55 2279 2026-02-07
90 % 7.76 2511 2026-02-10
70 % 8.63 3782 2026-02-22
50 % 8.98 4361 2026-03-02
30 % 9.78 5802 2026-03-23
10 % 16.98 18029 2026-04-08
05 % 19.52 23078 2026-04-21

Peakflow exceedence plot for BEAO3

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