Flood Advisory issued December 18 at 5:54AM PST until December 18 at 8:45AM PST by NWS Seattle WA

A line of thunderstorms is moving across Snohomish County and
northern King County this morning. Local ponding on roadways will be
possible over the next few hours as the band tracks into the
Cascades.

* WHAT…Urban and small stream flooding caused by excessive
rainfall is expected.

* WHERE…Portions of northwest and west central Washington,
including the following counties, in northwest Washington, Island.
In west central Washington, King and Snohomish.

* WHEN…Until 845 AM PST.

* IMPACTS…Minor flooding in low-lying and poor drainage areas.

* ADDITIONAL DETAILS…
– At 549 AM PST, Doppler radar indicated heavy rain. This will
cause urban and small stream flooding. Overflowing poor
drainage areas will cause minor flooding in the advisory
area.
– Some locations that will experience flooding include…
Seattle, Bellevue, Everett, Marysville, Edmonds, Arlington,
North Bend, Gold Bar, Carnation, Index, Renton, Redmond,
Kirkland, Sammamish, Lynnwood, Bothell, Issaquah, Lake
Stevens, Mukilteo and Mountlake Terrace.
– http://www.weather.gov/safety/flood