Issaquah's Local System
The City of Issaquah posts flood phase information (typically Phase 2 or higher) on its:
Using the upstream gauge in Hobart, Issaquah's Flood Warning System can usually provide three to four hours lead-time (depending on your location and the extent of the flooding).
Hobart Flood Gauge
To see data of the upstream gauge in Hobart, visit the USGS website. This external site, however, is only updated once an hour. Using this data, King County also issues flood alerts by phone, text or e-mail.
For more up-to-date information, tune in to the City's Flood Warning System.
National Weather Service Forecasts
The National Weather Service also broadcasts flood warnings for Issaquah Creek (along with other rivers in the region) based on its forecasts and/or observations at the downstream gauge near Lake Sammamish State Park. For forecast information, visit the National Weather Service National Oceanic and Atmospheric Administration.
When these warnings occur, residents should also monitor the City's Flood Warning System for current, local conditions.
Issaquah's Flood Phases
|Phase||Extent of Flooding||Action by City||Action by Residents||Issaquah Creek Level|
Sand & Bags
Learn more about sand and bag deliveries.
How to Prepare
- View the City's eight-page booklet (PDF) about flood preparedness and response in Issaquah.
- To learn more about flooding from our engineering department, including floodplain maps, flood insurance or the city's efforts to reduce flooding, view the Public Works Engineering flooding page.
To prevent any localized flooding, residents can help out by keeping the storm drains near their homes clear of debris and leaves.
For larger stormwater issues, call the Public Works Operations Department at 425-837-3470.