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
2026
Ensemble Date: 2025-12-09
Forecast Period: December 9 to April 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 11.73 18542 2025-12-10
90 % 11.73 18542 2025-12-10
70 % 11.73 18542 2025-12-10
50 % 11.73 18542 2025-12-10
30 % 11.73 18542 2025-12-10
10 % 11.73 18542 2025-12-10
05 % 11.73 18542 2025-12-10

Peakflow exceedence plot for ORTW1

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