SEATTLE, Wash. – Gray skies thicken over Puget Sound this morning as the Pacific Ocean opens up, sending steady sheets of rain inland. The first major atmospheric river of November is slamming the Northwest, bringing drenching rain, mountain snow, and gusty winds from the coast to the Cascades.
According to the National Weather Service in Seattle, coastal zones could pick up 2 to 3 inches of rain by Sunday, while the Olympic and Cascade mountain ranges may see 3 to 5 inches or more. The Skokomish River basin faces the highest risk for flooding, with smaller streams likely to rise quickly through tonight. Travel along U.S. 101 and I-5 could be slowed by ponding water and strong crosswinds, especially across exposed bridges and coastal headlands.
Forecasters warn that high waves and wind gusts up to 40 mph could make conditions dangerous for small craft and ferries on Puget Sound. Higher elevations in the Cascades may see snow accumulations beginning Saturday, adding slick travel on Stevens and Snoqualmie Pass through early Sunday. A reinforcing disturbance will sweep through late Sunday, bringing additional rain showers before cooler, drier air moves in behind the front.
Residents are urged to clear storm drains, avoid flooded roads, and monitor alerts from local emergency managers. Those traveling for early holiday plans should plan for extra time, as heavy rain and reduced visibility could create delays region-wide. By Monday, calmer weather is expected — but this system serves as a clear reminder that the Pacific storm track is officially awake for winter.
