Peakflow Forecasts Header

WHITEFISH--NEAR KALISPELL
   State:  Montana    County:  FLATHEAD
   Latitude:  48 19' 12" North    Longitude:  114 16' 42" West
   Elevation:  2970 feet
   Supporting WFO:  Missoula    
   Action Stage:  5'   Flood Stage:  5.4'

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.

WHITEFISH--NEAR KALISPELL   (WHRM8)
Forecasts for Water Year
2026
Ensemble Date: 2026-04-18
Forecast Period: April 18 to August 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 3.44 641 2026-04-24
90 % 3.44 641 2026-04-24
70 % 3.60 704 2026-05-17
50 % 3.82 800 2026-06-02
30 % 4.09 909 2026-06-10
10 % 4.50 1085 2026-06-22
05 % 4.77 1206 2026-06-27

Peakflow exceedence plot for WHRM8

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