Peakflow Forecasts Header

MINERAL CREEK--NEAR MINERAL
   State:  Washington    County:  LEWIS
   Latitude:  46 44' 0" North    Longitude:  122 9' 0" West
   Elevation:  1340 feet
   Supporting WFO:  Seattle    

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.

MINERAL CREEK--NEAR MINERAL   (MCMW1)
Forecasts for Water Year
2026
Ensemble Date: 2026-09-08
Forecast Period: September 8 to January 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 10.09 669 2026-11-05
90 % 10.64 1077 2026-11-09
70 % 11.43 1846 2026-11-24
50 % 13.24 4411 2026-12-04
30 % 13.90 5655 2026-12-11
10 % 15.27 8730 2026-12-26
05 % 15.59 9547 2026-12-30

Peakflow exceedence plot for MCMW1

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