Peakflow Forecasts Header

TILTON--NEAR CINEBAR
   State:  Washington    County:  LEWIS
   Latitude:  46 35' 44" North    Longitude:  122 27' 28" West
   Elevation:  600 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.

TILTON--NEAR CINEBAR   (TILW1)
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 % 5.40 2010 2026-11-03
90 % 5.93 2686 2026-11-06
70 % 6.69 3649 2026-11-20
50 % 7.83 5263 2026-11-30
30 % 10.00 8841 2026-12-09
10 % 12.64 13937 2026-12-25
05 % 13.93 16711 2026-12-28

Peakflow exceedence plot for TILW1

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