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: 2026-06-05
Forecast Period: June 5 to October 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 3.30 343 2026-06-10
90 % 3.30 343 2026-06-10
70 % 3.30 343 2026-06-10
50 % 3.69 542 2026-06-29
30 % 3.87 651 2026-09-17
10 % 4.56 1176 2026-09-29
05 % 5.25 1865 2026-10-01

Peakflow exceedence plot for TILW1

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