Peakflow Forecasts Header

PUYALLUP--NEAR ORTING
   State:  Washington    County:  PIERCE
   Latitude:  47 2' 22" North    Longitude:  122 12' 24" West
   Elevation:  353 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.

PUYALLUP--NEAR ORTING   (ORTW1)
Forecasts for Water Year
2025
Ensemble Date: 2025-07-11
Forecast Period: July 11 to November 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 6.05 912 2025-07-25
90 % 6.12 970 2025-08-01
70 % 6.69 1508 2025-10-01
50 % 7.13 2055 2025-10-20
30 % 7.56 2721 2025-10-26
10 % 8.31 4378 2025-10-31
05 % 9.79 9607 2025-10-31

Peakflow exceedence plot for ORTW1

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