(ISSW1) ISSAQUAH CREEK − NEAR MOUTH Station Summary

ISSAQUAH CREEK − NEAR MOUTH (ISSW1)

   State: Washington
   County: King
   Latitude: 47 33' 9" North
   Longitude: 122 2' 49" West
   Elevation: 36 ft

   Supporting NWS Forecast Office: WFO Seattle
   Click for NWS Official River Forecasts for ISSW1


   Action Flow: 1340 cfs (9.03 ft)
   Flood Flow: 2000 cfs (10.69 ft)
   Moderate Flood Flow: 2300 cfs (11.37 ft)
   Major Flood Flow: 2800 cfs (12.45 ft)

Daily Historical Statistics for June 23, 2026 Mean Stage: 4.27 ft Mean Flow: 65 cfs Max Stage: 5.02 ft Max Flow: 219 cfs (2012) Min Stage: 3.87 ft Min Flow: 24 cfs (1992) Statistics based on water years: 1964-2025 * statistics estimated based on current rating

Record Stage: 14.69 ft
Record Flow: 3200 cfs
Date of Record: January 9, 1990

The 4-10 Day Trend Forecast is based on model guidance and uncertainty during this period is greater.

Data Used In Plot

USGS Observations