Severe Weather System to Bring Heavy Rain and Strong Winds to Seattle This Weekend

SEATTLE, Washington — A powerful atmospheric river is set to impact western Washington beginning early Friday morning, bringing heavy rain and strong winds through the weekend.

Residents should prepare for rainfall totals between one to three inches across the region, particularly along the coast, where amounts may be higher. Coastal winds could gust up to 40 mph, while central and south Puget Sound may experience gusts between 30 to 40 mph.

According to the National Weather Service, a wind advisory is in place for the northern Puget Sound, where gusts could reach up to 50 mph. The storm is expected to deliver widespread rain and wind, with forecasts predicting the heaviest impacts from Friday through Sunday.

Snow levels are expected to drop significantly, reaching around 3,500 feet by Sunday. This change could lead to winter weather advisories for the Cascades, with 6 to 10 inches of snow anticipated in the mountain passes.

“While the storm may appear alarming, it is typical for this time of year and is not expected to cause severe flooding,” said NWS Meteorologist Steve Reedy. “However, gusty conditions could down branches, especially since many trees still have leaves.”

Forecasters suggest that residents clear storm drains of debris and prepare for possible localized flooding and power outages. Snohomish Public Utilities has also been preparing for potential outages, ensuring their workforce is ready for the storm.

Despite the frontal system bringing substantial moisture, the current dry conditions in the region are expected to mitigate widespread flooding risks. Rainfall will begin Friday morning and persist throughout the day before easing late Friday night, with scattered showers continuing into Sunday.

Looking ahead, cool temperatures and lingering showers will remain in the forecast into next week. Residents are encouraged to stay informed about changing weather conditions.