Peakflow Forecasts Header

NASELLE--NEAR NASELLE
   State:  Washington    County:  PACIFIC
   Latitude:  46 22' 27" North    Longitude:  123 44' 31" West
   Elevation:  24 feet
   Supporting WFO:  Portland    
   Action Stage:  14'   Flood Stage:  15'
   Major Flood Stage:  
17'

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.

NASELLE--NEAR NASELLE   (NASW1)
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 % 8.83 2251 2021-12-12
90 % 8.86 2270 2021-12-14
70 % 10.28 3306 2022-01-07
50 % 11.72 4433 2022-01-18
30 % 12.89 5433 2022-02-12
10 % 14.13 6568 2022-03-21
05 % 15.72 8130 2022-03-29

Peakflow exceedence plot for NASW1

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