Peakflow Forecasts Header

MALHEUR--NEAR DREWSEY
   State:  Oregon    County:  HARNEY
   Latitude:  43 47' 4" North    Longitude:  118 19' 50" West
   Elevation:  3479 feet
   Supporting WFO:  Boise    

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.

MALHEUR--NEAR DREWSEY   (MADO3)
Forecasts for Water Year
2027
Ensemble Date: 2026-10-05
Forecast Period: October 5 to February 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 2.82 66 2026-10-29
90 % 2.90 76 2026-11-08
70 % 2.99 88 2026-12-04
50 % 3.20 118 2026-12-27
30 % 5.12 605 2027-01-18
10 % 7.11 1428 2027-01-30
05 % 8.64 2435 2027-01-31

Peakflow exceedence plot for MADO3

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