Peakflow Forecasts Header

CLARK FORK--BELOW MISSOULA
   State:  Montana    County:  MISSOULA
   Latitude:  46 52' 9" North    Longitude:  114 7' 32" West
   Elevation:  3084 feet
   Supporting WFO:  Missoula    
   Action Stage:  10.5'   Flood Stage:  11'   Moderate Flood Stage:  12'
   Major Flood Stage:  
13'

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.

CLARK FORK--BELOW MISSOULA   (BELM8)
Forecasts for Water Year
2025
Ensemble Date: 2025-07-11
Forecast Period: July 11 to November 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 1.16 2234 2025-07-17
90 % 1.16 2234 2025-07-17
70 % 1.16 2236 2025-07-26
50 % 1.19 2288 2025-09-11
30 % 1.31 2527 2025-10-10
10 % 1.78 3486 2025-10-30
05 % 1.85 3657 2025-11-01

Peakflow exceedence plot for BELM8

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