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 2024
Ensemble Date: 2024-04-23
 Forecast Period: April 23 to August 1
Exceedence
Probability 		Stage
feet 		Discharge
CFS 		Probable
Date of Peak
95 % 4.72 1439 2024-04-30
90 % 4.72 1439 2024-04-30
70 % 4.78 1480 2024-05-01
50 % 5.52 2131 2024-05-09
30 % 6.33 3019 2024-05-18
10 % 7.66 4841 2024-06-08
05 % 8.45 6135 2024-06-11

Peakflow exceedence plot for FSSO3

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