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
2024
Ensemble Date: 2024-04-22
Forecast Period: April 22 to August 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 3.28 810 2024-04-27
90 % 3.28 810 2024-04-27
70 % 3.28 810 2024-04-27
50 % 4.02 1248 2024-05-08
30 % 4.58 1632 2024-05-17
10 % 5.67 2478 2024-06-07
05 % 5.98 2750 2024-06-08

Peakflow exceedence plot for TIDO3

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