Seattle, Washington – A winter weather advisory brings up to 10 inches of snow to Washington’s northern Cascades overnight.
According to the National Weather Service in Seattle, the advisory remains in effect from 10 p.m. Sunday, February 22, 2026, until 10 a.m. PST Monday, February 23, 2026.
The alert covers the Cascades of Whatcom and Skagit counties, as well as the Cascades of Snohomish and Northern King counties. Impacted areas include Mount Baker and Stevens Pass.
Forecasters say total snow accumulations of 5 to 10 inches are expected during the advisory period. Snowfall rates could intensify overnight, particularly at higher elevations.
Travel conditions are expected to deteriorate late Sunday evening, with hazardous driving likely through early Monday morning. Roads across mountain passes, including corridors connected to Interstate 90 and U.S. Highway 2 near Stevens Pass, may become snow-covered and slick.
The National Weather Service warns that travel could be very difficult, especially during the Monday morning commute. Reduced visibility and accumulating snow may slow traffic and increase the risk of spinouts or delays.
Drivers are urged to slow down, allow extra travel time, and carry winter emergency supplies. Officials also advise preparing for possible isolated power outages caused by heavy snow on trees and power lines.
Mountain travel plans late Sunday or early Monday should be adjusted as conditions warrant.
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