Peakflow Forecasts Header

YAAK--NEAR TROY
   State:  Montana    County:  LINCOLN
   Latitude:  48 33' 42" North    Longitude:  115 58' 9" West
   Elevation:  1839 feet
   Supporting WFO:  Missoula    
   Action Stage:  7.5'   Flood Stage:  8'   Moderate Flood Stage:  9'
   Major Flood Stage:  
10'

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.

YAAK--NEAR TROY   (TRYM8)
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 % 4.59 954 2021-12-07
90 % 4.59 954 2021-12-07
70 % 4.87 1203 2022-02-27
50 % 5.16 1500 2022-03-18
30 % 5.51 1918 2022-03-26
10 % 6.09 2737 2022-04-01
05 % 6.73 3865 2022-04-01

Peakflow exceedence plot for TRYM8

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