Seattle, Washington – A general risk of thunderstorms will keep much of western Washington on alert through Thursday, with potential for afternoon lightning and heavy showers from the Puget Sound to the Cascade foothills. Residents and travelers in the region should expect changing weather conditions and possible delays, especially east of I-5.
According to the National Weather Service Seattle, isolated thunderstorms may develop in the Cascades and foothill areas—including Darrington, Gold Bar, and North Bend—later this afternoon and evening. The severe weather outlook highlights a “Marginal Risk” for thunder across King, Snohomish, Skagit, and Whatcom counties, with scattered showers possible for Seattle, Everett, and Bellingham.
Those venturing outdoors, especially in mountain zones or open fields, are urged to remain weather-aware and have shelter plans in place. Lightning can strike with little warning—if you hear thunder, move indoors immediately. Showers may reduce visibility and lead to slick roads on major routes like US-2, I-90, and SR-18. While no widespread flooding is expected, local downpours could cause brief power outages or minor disruptions.
Thunderstorm risk will linger until Thursday night, with quieter conditions forecast for Friday and the weekend. Stay tuned to NOAA Weather Radio and local media for updates, as more advisories may be issued if storm coverage increases.
