Peakflow Forecasts Header

NF FLATHEAD--NEAR COLUMBIA FALLS
   State:  Montana    County:  FLATHEAD
   Latitude:  48 29' 44" North    Longitude:  114 7' 36" West
   Elevation:  3145 feet
   Supporting WFO:  Missoula    
   Action Stage:  12.5'   Flood Stage:  13'   Moderate Flood Stage:  17'
   Major Flood Stage:  
19'

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.

NF FLATHEAD--NEAR COLUMBIA FALLS   (FCFM8)
Forecasts for Water Year
2024
Ensemble Date: 2024-04-17
Forecast Period: April 17 to August 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 5.84 7948 2024-05-07
90 % 6.07 8577 2024-05-13
70 % 6.46 9646 2024-05-21
50 % 6.89 10931 2024-05-28
30 % 7.33 12306 2024-06-05
10 % 8.21 15248 2024-06-19
05 % 8.64 16784 2024-06-22

Peakflow exceedence plot for FCFM8

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