Seattle, WA – A powerful atmospheric river is set to batter the Pacific Northwest this week, bringing life-threatening floods, heavy snow, and dangerous winds to Washington, Oregon, and Northern California. The storm is expected to intensify from late Tuesday through Friday, with severe weather conditions likely to disrupt travel, cause power outages, and threaten lives across the region.
According to the National Weather Service, the heaviest rainfall is anticipated Wednesday through Friday, with some areas along the Northern California coast and western Washington expected to receive over 6 inches of rain. This could trigger flash floods, landslides, and debris flows in low-lying and burn-scarred areas. Major highways, including Interstate 5 and Highway 101, may face closures due to flooding or debris.
In the mountains, heavy snow is forecast to accumulate at a rate of up to 3 inches per hour. The Cascades, Sierra Nevada, and other ranges could see totals of 3 to 4 feet by the end of the week, creating whiteout conditions and impassable roads. Wind gusts of up to 65 mph will exacerbate the risks, particularly at higher elevations and along the coast.
Residents in coastal areas are also warned of damaging surf and storm surge, which could lead to localized flooding and property damage. The storm is expected to peak midweek but will leave lingering effects, including freezing temperatures and icy conditions, heading into the weekend.
