Peakflow Forecasts Header

BITTERROOT--NEAR MISSOULA
   State:  Montana    County:  MISSOULA
   Latitude:  46 49' 55" North    Longitude:  114 3' 11" West
   Elevation:  3110 feet
   Supporting WFO:  Missoula    
   Action Stage:  10'   Flood Stage:  11'   Moderate Flood Stage:  13'
   Major Flood Stage:  
15'

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 MISSOULA   (BITM8)
Forecasts for Water Year
2026
Ensemble Date: 2026-06-06
Forecast Period: June 6 to October 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 7.06 6390 2026-06-06
90 % 7.06 6390 2026-06-06
70 % 7.06 6390 2026-06-06
50 % 7.06 6390 2026-06-06
30 % 7.06 6390 2026-06-06
10 % 7.06 6390 2026-06-06
05 % 8.10 8792 2026-06-26

Peakflow exceedence plot for BITM8

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