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: 2025-05-14
Forecast Period: May 14 to September 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 6.22 1052 2025-05-29
90 % 6.29 1110 2025-06-01
70 % 6.54 1351 2025-06-05
50 % 6.84 1680 2025-06-11
30 % 7.23 2204 2025-06-21
10 % 7.64 2871 2025-07-21
05 % 7.89 3359 2025-08-10

Peakflow exceedence plot for ORTW1

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