Peakflow Forecasts Header

STILLWATER--NEAR LAWRENCE PARK
   State:  Montana    County:  FLATHEAD
   Latitude:  48 13' 3" North    Longitude:  114 18' 44" West
   Elevation:  2953 feet
   Supporting WFO:  Missoula    
   Action Stage:  7'   Flood Stage:  7.5'

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.

STILLWATER--NEAR LAWRENCE PARK   (SRLM8)
Forecasts for Water Year
2026
Ensemble Date: 2026-03-14
Forecast Period: March 14 to July 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 5.10 1011 2026-04-03
90 % 5.18 1058 2026-04-09
70 % 5.40 1197 2026-04-21
50 % 5.53 1281 2026-04-28
30 % 5.79 1442 2026-05-05
10 % 6.03 1597 2026-05-27
05 % 6.41 1847 2026-06-03

Peakflow exceedence plot for SRLM8

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