Peakflow Forecasts Header

SF FLATHEAD--HUNGRY HORSE DAM
   State:  Montana    County:  FLATHEAD
   Latitude:  48 20' 28" North    Longitude:  114 0' 47" West
   Elevation:  3560 feet
   Supporting WFO:  Missoula    
   Inflow Data  

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.

SF FLATHEAD--HUNGRY HORSE DAM   (HHWM8)
Forecasts for Water Year
2024
Ensemble Date: 2024-04-19
Forecast Period: April 19 to August 1
Exceedence
Probability
Inflow
CFS
Probable
Date of Peak
95 % 12621 2024-05-04
90 % 14078 2024-05-07
70 % 16222 2024-05-17
50 % 18183 2024-05-24
30 % 20505 2024-05-30
10 % 24378 2024-06-12
05 % 27372 2024-06-20

Peakflow exceedence plot for HHWM8

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