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.

Winter Weather Advisory issued November 2 at 4:45AM PDT until November 3 at 10:00AM PST by NWS Spokane WA

* WHAT...Snow. Additional snow accumulations between 6 and 10 inches above 3500 feet. * WHERE...Stevens Pass. * WHEN...Until 10 AM PST Sunday. * IMPACTS...Travel could be difficult. Expect winter driving conditions at Stevens Pass.

Winter Weather Advisory issued November 2 at 2:43AM PDT until November 3 at 10:00AM PST by NWS Seattle WA

* WHAT...Snow at or above elevations greater than 3500 ft. Additional snow accumulations up to 6 to 11 inches. * WHERE...West Slopes North Central Cascades and Passes and West Slopes South Central Cascades and Passes. * WHEN...Until 10 AM PST Sunday. * IMPACTS...Travel could be very difficult.

Winter Weather Advisory issued November 2 at 1:55AM PDT until November 3 at 10:00AM PST by NWS Pendleton OR

* WHAT...Moderate snow accumulations. Additional snow accumulations 4 to 8 inches above 4000 feet. * WHERE...Upper Slopes of the Eastern Washington Cascades Crest. * WHEN...Until 10 AM PST Sunday. * IMPACTS...Travel could be difficult due to periods of moderate to heavy snow. * ADDITIONAL DETAILS...Additional snow accumulations in the White Pass area are expected through Sunday morning.

Winter Weather Advisory issued November 2 at 1:55AM PDT until November 3 at 4:00PM PST by NWS Pendleton OR

* WHAT...Snow expected. Total snow accumulations of 6 to 10 inches above 4500 feet, with lower accumulations between 3500 and 4500 feet. * WHERE...In Oregon, Northern Blue Mountains of Oregon. In Washington, Northwest Blue Mountains. * WHEN...From 5 AM PDT early this morning to 4 PM PST Sunday. * IMPACTS...Travel could be difficult due to periods of moderate to heavy snow. * ADDITIONAL DETAILS...Heaviest snowfall is forecast Saturday night and Sunday.