A powerful frontal system is moving in, bringing heavy rain, snow, and the potential for flooding to western Washington from tonight through Monday. The National Weather Service warns that areas like the Skokomish River in Mason County could see river flooding due to the intense rainfall.
This morning offers a brief respite, but light showers continue in King County. Conditions will deteriorate rapidly as rain begins to spread across the region later today, with the heaviest downpours expected tonight and into Monday morning. Coastal and mountainous areas could receive up to 3-4 inches of rain, while lowland areas may see 1-1.5 inches.
Snow levels will drop on Monday, bringing heavy snow to mountain passes like SR 20 and Washington Pass, with up to a foot of snow at Mount Baker. Winds will intensify along the coast, with gusts reaching 35 mph, and high surf is expected by Monday night, with seas climbing to 18-23 feet. Thunderstorms could also develop along the coast, continuing through Tuesday.