Peakflow Forecasts Header

BITTERROOT--NEAR DARBY
   State:  Montana    County:  RAVALLI
   Latitude:  45 58' 19" North    Longitude:  114 8' 26" West
   Elevation:  3942 feet
   Supporting WFO:  Missoula    
   Action Stage:  7'   Flood Stage:  7.5'

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.

BITTERROOT--NEAR DARBY   (DARM8)
Forecasts for Water Year 2026
Ensemble Date: 2025-11-16
 Forecast Period: November 16 to March 1
Exceedence
Probability 		Stage
feet 		Discharge
CFS 		Probable
Date of Peak
95 % 2.13 420 2025-11-16
90 % 2.13 420 2025-11-16
70 % 2.13 420 2025-11-16
50 % 2.13 420 2025-11-16
30 % 2.13 420 2025-11-16
10 % 2.19 450 2026-02-16
05 % 2.34 526 2026-02-26

Peakflow exceedence plot for DARM8

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