Peakflow Forecasts Header

NEHALEM--FOSS
   State:  Oregon    County:  TILLAMOOK
   Latitude:  45 42' 15" North    Longitude:  123 45' 15" West
   Elevation:  33 feet
   Supporting WFO:  Portland    
   Action Stage:  13'   Flood Stage:  15'   Moderate Flood Stage:  20'
   Major Flood Stage:  
24'

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.

NEHALEM--FOSS   (FSSO3)
Forecasts for Water Year
2022
Ensemble Date: 2021-12-08
Forecast Period: December 8 to April 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 9.60 8467 2021-12-21
90 % 10.30 10605 2021-12-24
70 % 11.68 15502 2021-12-31
50 % 14.12 23158 2022-01-12
30 % 16.49 29067 2022-01-25
10 % 20.75 40819 2022-02-12
05 % 21.82 43985 2022-02-24

Peakflow exceedence plot for FSSO3

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