Peakflow Forecasts Header

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 2024
Ensemble Date: 2024-04-25
 Forecast Period: April 25 to August 1
Exceedence
Probability 		Stage
feet 		Discharge
CFS 		Probable
Date of Peak
95 % 9.78 24837 2024-05-13
90 % 9.88 25323 2024-05-16
70 % 10.24 27075 2024-05-26
50 % 10.98 30826 2024-06-01
30 % 11.59 34078 2024-06-11
10 % 12.75 40524 2024-06-21
05 % 14.79 52969 2024-06-21

Peakflow exceedence plot for CFMM8

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