Peakflow Forecasts Header

ALSEA--NEAR TIDEWATER
   State:  Oregon    County:  LINCOLN
   Latitude:  44 23' 9" North    Longitude:  123 49' 50" West
   Elevation:  48 feet
   Supporting WFO:  Portland    
   Action Stage:  16'   Flood Stage:  18'   Moderate Flood Stage:  21'
   Major Flood Stage:  
23'

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.

ALSEA--NEAR TIDEWATER   (TIDO3)
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 % 7.51 4216 2021-12-21
90 % 9.41 6377 2021-12-26
70 % 11.13 8632 2022-01-09
50 % 13.00 11379 2022-01-20
30 % 14.81 14304 2022-02-07
10 % 19.88 23884 2022-02-25
05 % 22.73 30076 2022-03-26

Peakflow exceedence plot for TIDO3

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