Peakflow Forecasts Header

SANDY--NEAR MARMOT
   State:  Oregon    County:  CLACKAMAS
   Latitude:  45 23' 30" North    Longitude:  122 7' 40" West
   Elevation:  730 feet
   Supporting WFO:  Portland    

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.

SANDY--NEAR MARMOT   (SRMO3)
Forecasts for Water Year
2024
Ensemble Date: 2024-04-25
Forecast Period: April 25 to August 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 692.88 2610 2024-04-27
90 % 692.88 2610 2024-04-27
70 % 692.88 2610 2024-04-27
50 % 692.98 2788 2024-05-11
30 % 693.35 3492 2024-05-28
10 % 694.00 4952 2024-06-07
05 % 694.27 5669 2024-06-10

Peakflow exceedence plot for SRMO3

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