Peakflow Forecasts Header

SIUSLAW--NEAR MAPLETON
   State:  Oregon    County:  LANE
   Latitude:  44 3' 45" North    Longitude:  123 52' 54" West
   Elevation:  41 feet
   Supporting WFO:  Portland    
   Action Stage:  15'   Flood Stage:  18'   Moderate Flood Stage:  22'
   Major Flood Stage:  28'

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.

SIUSLAW--NEAR MAPLETON   (MPLO3)
Forecasts for Water Year 2025
Ensemble Date: 2025-05-12
 Forecast Period: May 12 to September 1
Exceedence
Probability 		Stage
feet 		Discharge
CFS 		Probable
Date of Peak
95 % 4.36 841 2025-05-13
90 % 4.36 841 2025-05-13
70 % 4.36 841 2025-05-13
50 % 4.36 841 2025-05-13
30 % 4.99 1305 2025-06-01
10 % 5.74 1962 2025-06-11
05 % 6.67 2954 2025-06-27

Peakflow exceedence plot for MPLO3

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