Peakflow Forecasts Header

ISSAQUAH CREEK--NEAR MOUTH
   State:  Washington    County:  KING
   Latitude:  47 33' 0" North    Longitude:  122 3' 0" West
   Elevation:  36 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.

ISSAQUAH CREEK--NEAR MOUTH   (ISSW1)
Forecasts for Water Year
2024
Ensemble Date: 2024-05-03
Forecast Period: May 3 to September 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 5.11 195 2024-05-07
90 % 5.11 195 2024-05-07
70 % 5.11 195 2024-05-07
50 % 5.11 195 2024-05-07
30 % 5.13 199 2024-05-14
10 % 5.63 302 2024-06-10
05 % 5.93 374 2024-06-12

Peakflow exceedence plot for ISSW1

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