Catastrophic flooding struck Washington state early on Dec. 11 as an atmospheric river dumped heavy rain. Consequently, rivers rose to dangerous levels.

Forecasters warned that record-breaking floods could occur along the Skagit and Snohomish Rivers through Dec. 11. Furthermore, more flooding is expected across the Cascade Foothills and Puget Sound through Dec. 12.

Interstate 90 and several other roads were blocked by landslides and floodwaters. The Washington State Department of Transportation said reopening times remain unknown. Meanwhile, video shows roadways completely submerged.

In Pierce County, sheriff’s deputies conducted swift-water rescues at an RV park. “This flooding is the worst I have seen here,” said Sheriff Keith Swank. He urged residents to evacuate immediately.

Governor Bob Ferguson declared an emergency due to the floods. He warned that up to 100,000 residents may face evacuation orders. “The next few days are critical,” Ferguson said.

Skagit County issued a Level Three “GO” evacuation for all residents in the 100-year floodplain. The Skagit River is expected to crest at 46.13 feet in Concrete and 42.13 feet in Mount Vernon.

Other rivers also reached major flood stages. The Skykomish River crested above 24 feet, nearly breaking records. The North Fork Stillaguamish River continued rising, threatening Tualco Valley and Sultan. Residents in these areas were urged to seek higher ground.

Helicopters rescued residents trapped in Sultan. Photos show people carrying belongings to safety. The Sultan Police Department reported multiple submerged cars and flooded roads. They warned, “Do not attempt to drive through flooded roadways.”

In King County, two drivers were trapped by overtopped rivers. Helicopters rescued one from a car roof and another from a tree. Meanwhile, officials warned that floodwaters may be contaminated. Stormwater and sewage overflows pose health risks near Lake Washington, Salmon Bay, Portage Bay, and Elliott Bay.

Rainfall totals reached up to 16 inches in some areas over 72 hours. Seattle-Tacoma International Airport recorded 1.6 inches on Dec. 10, breaking a 1977 record. Bellingham International Airport also saw record rainfall.

Officials urge residents to evacuate, stay alert, and avoid floodwaters. Emergency crews continue rescues, monitor rivers, and work to protect communities. Early action can save lives in this dangerous storm.

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