Peakflow Forecasts Header

CARBON--NEAR FAIRFAX
   State:  Washington    County:  PIERCE
   Latitude:  47 2' 0" North    Longitude:  122 1' 59" West
   Elevation:  1213 feet
   Supporting WFO:  Seattle    
   Action Stage:  11.6'   Flood Stage:  13.5'   Moderate Flood Stage:  14.5'
   Major Flood Stage:  15'

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.

CARBON--NEAR FAIRFAX   (FFXW1)
Forecasts for Water Year 2025
Ensemble Date: 2025-05-12
 Forecast Period: May 12 to September 1
Exceedence
Probability 		Stage
feet 		Discharge
CFS 		Probable
Date of Peak
95 % 8.37 595 2025-05-27
90 % 8.58 683 2025-05-30
70 % 8.82 804 2025-06-03
50 % 9.11 972 2025-06-07
30 % 10.03 1656 2025-06-17
10 % 10.68 2407 2025-07-04
05 % 11.05 2904 2025-07-13

Peakflow exceedence plot for FFXW1

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