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: 2024-04-25
Forecast Period: April 25 to August 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 4.57 90 2024-04-26
90 % 4.57 90 2024-04-26
70 % 4.65 106 2024-05-11
50 % 4.82 145 2024-05-28
30 % 5.10 193 2024-06-06
10 % 5.52 278 2024-06-20
05 % 6.01 393 2024-07-10

Peakflow exceedence plot for ISSW1

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