Peakflow Forecasts Header

PROSPECT CREEK--AT THOMPSON FALLS
   State:  Montana    County:  SANDERS
   Latitude:  47 35' 9" North    Longitude:  115 21' 15" West
   Elevation:  2382 feet
   Supporting WFO:  Missoula    
   Action Stage:  6.5'   Flood Stage:  7.5'   Moderate Flood Stage:  8'
   Major Flood Stage:  
9'

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.

PROSPECT CREEK--AT THOMPSON FALLS   (PRCM8)
Forecasts for Water Year
2025
Ensemble Date: 2025-05-14
Forecast Period: May 14 to September 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 3.46 662 2025-05-19
90 % 3.46 662 2025-05-19
70 % 3.46 662 2025-05-19
50 % 3.52 686 2025-05-27
30 % 3.70 766 2025-06-03
10 % 4.11 967 2025-06-13
05 % 4.62 1262 2025-06-18

Peakflow exceedence plot for PRCM8

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