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: 2026-06-06
Forecast Period: June 6 to October 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 7.16 878 2026-06-20
90 % 7.25 954 2026-06-25
70 % 7.35 1039 2026-07-21
50 % 7.50 1186 2026-07-30
30 % 7.78 1486 2026-08-27
10 % 8.76 3031 2026-09-29
05 % 8.86 3238 2026-10-01

Peakflow exceedence plot for ORTW1

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