Peakflow Forecasts Header

S YAMHILL--AT MCMINNVILLE
   State:  Oregon    County:  YAMHILL
   Latitude:  45 12' 20" North    Longitude:  123 10' 53" West
   Elevation:  62 feet
   Supporting WFO:  Portland    
   Action Stage:  45'   Flood Stage:  50'   Moderate Flood Stage:  56'
   Major Flood Stage:  
59'

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.

S YAMHILL--AT MCMINNVILLE   (MCMO3)
Forecasts for Water Year
2022
Ensemble Date: 2021-12-07
Forecast Period: December 7 to April 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 32.50 7210 2021-12-20
90 % 34.93 8268 2021-12-22
70 % 40.62 10880 2022-01-08
50 % 41.00 13675 2022-01-26
30 % 41.00 16994 2022-02-11
10 % 41.00 21456 2022-03-04
05 % 41.00 25222 2022-03-26

Peakflow exceedence plot for MCMO3

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