Heavy rainfall, delivered by an atmospheric river, has led to widespread flooding in portions of the United States' Pacific Northwest and Canada. Authorities have issued warnings for significant flooding along the Skagit and Snohomish rivers in Oregon and Washington. In Canada, key highways leading to Vancouver are closed due to floodwaters, debris, and avalanche risks. Evacuation orders are currently in effect for thousands of individuals in both countries, with additional rainfall anticipated.
United States Emergency Response
On Wednesday, Washington State Governor Bob Ferguson declared a statewide emergency. The declaration indicated that approximately 100,000 residents could receive evacuation orders. Continued rain and mountain snow at higher elevations are expected to exacerbate flood conditions. The declaration also noted potential severe impacts on supply chains and transportation infrastructure.
Skagit County, a prominent agricultural region north of Seattle, has mandated immediate evacuation for residents within its floodplain. Robert Ezelle, director of the Washington Military Department's Emergency Management Division, stated on Wednesday that an estimated 75,000 people from low-lying areas along the Skagit River would be evacuated.
The Snohomish County Sheriff's Office reported multiple helicopter rescues overnight for individuals trapped in their homes in Sultan, Washington, located approximately 40 miles (65 km) northeast of Seattle. On Thursday morning, the Sheriff's Office identified the eastern part of the county as the most affected area, following the Skykomish River cresting at over 24 feet (7 meters) overnight, a level near its record. The Snohomish River is also experiencing elevated water levels, nearing capacity at a local flood wall. Officials in King and Snohomish counties have confirmed numerous closures on state and local roads, with more expected.
In Pierce County, the Sheriff's office swiftwater team rescued three individuals from an RV park in Orting, approximately 42 miles south of Seattle, as reported in a Wednesday video post. Multiple roads in Pierce County are also closed.