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FLATHEAD--AT COLUMBIA FALLS
   State:  Montana    County:  FLATHEAD
   Latitude:  48 21' 42" North    Longitude:  114 11' 2" West
   Elevation:  2978 feet
   Supporting WFO:  Missoula    
   Action Stage:  12.5'   Flood Stage:  13'   Moderate Flood Stage:  18'
   Major Flood Stage:  
22'

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.

FLATHEAD--AT COLUMBIA FALLS   (CFMM8)
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 % 5.68 8600 2021-12-07
90 % 5.68 8600 2021-12-07
70 % 5.68 8600 2021-12-07
50 % 5.73 8782 2022-01-25
30 % 6.63 11883 2022-03-21
10 % 8.87 21034 2022-03-31
05 % 9.75 25191 2022-04-01

Peakflow exceedence plot for CFMM8

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