Peakflow Forecasts Header

SWAN--NEAR BIGFORK
   State:  Montana    County:  LAKE
   Latitude:  48 1' 27" North    Longitude:  113 58' 44" West
   Elevation:  3063 feet
   Supporting WFO:  Missoula    
   Action Stage:  6'   Flood Stage:  6.5'   Moderate Flood Stage:  7.5'
   Major Flood Stage:  
8'

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.

SWAN--NEAR BIGFORK   (SWRM8)
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 % 2.90 888 2021-12-07
90 % 2.90 888 2021-12-07
70 % 2.90 888 2021-12-07
50 % 3.04 1033 2022-03-20
30 % 3.24 1248 2022-03-27
10 % 3.50 1560 2022-04-01
05 % 3.92 2127 2022-04-01

Peakflow exceedence plot for SWRM8

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