Mercer Island Warnings, Watches and Advisories

Do not drive vehicles through flooded areas. The water depth or fast flowing water/mud/debris from a flash flood will make road conditions unsafe. Do not rely soley on data presented here or other third-party websites - always check your official national and local weather service agency website, socials, radio and/or TV stations for making critical decisions related to weather events.

Please carefully read each posted Warning and Alert as it relates to the area(s) being affected. We may provide a wider range of issued severe weather warnings for surrounding cities and counties, so some alerts may not directly impact this location. This is done to help with preparing for severe weather that may overlap or be heading towards Mercer Island.

Use the Radar Maps link provided to understand the trajectory of a storm.

High Wind Watch issued November 21 at 3:35AM PST until November 22 at 10:00PM PST by NWS Portland OR

* WHAT...South winds 25 to 35 mph with gusts up to 60 mph possible for beaches and headlands. * WHERE...South Washington and North and Central Oregon Coast. * WHEN...From Friday morning through Friday evening. * IMPACTS...Damaging winds could blow down trees and power lines. Travel could be difficult, especially for high profile vehicles.

Wind Advisory issued November 21 at 3:17AM PST until November 22 at 10:00AM PST by NWS Seattle WA

* WHAT...East winds 20 to 35 mph with gusts up to 40 to 50 mph expected. * WHERE...Bellevue and Vicinity and East Puget Sound Lowlands. * WHEN...From 10 PM this evening to 10 AM PST Friday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

Wind Advisory issued November 21 at 3:17AM PST until November 23 at 4:00AM PST by NWS Seattle WA

* WHAT...South winds 30 to 40 mph with gusts up to 55 mph expected. * WHERE...Central Coast and North Coast. * WHEN...From 10 AM Friday to 4 AM PST Saturday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

Flood Watch issued November 20 at 11:16PM PST until November 23 at 4:00AM PST by NWS Seattle WA

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of northwest Washington, including the following county, Mason. * WHEN...Through late Friday night. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - The Skokomish River in Mason County will remain around a half foot within flood stage today with minor flooding possible on Friday. - http://www.weather.gov/safety/flood