A century-old Skagit River dike is holding as 75,000 residents remain under evacuation orders. Officials warn flood risks will continue into Saturday morning.

The floodwall in Mount Vernon is expected to be overtopped as the river swells. Authorities have told everyone within the river's 100-year floodplain to evacuate.

The Skagit River is predicted to crest at more than 47 feet near the town of Concrete, north of Seattle, 15 inches above the threshold for a major flooding event.

People who live near the Skagit River have been asked to evacuate as forecasts predict record-level flooding over the next two days.

Authorities have told everyone within the Skagit River's 100-year flood plain to evacuate ahead of rapidly rising floodwaters. Communities including Burlington, La Conner, Lyman and Hamilton, as well as parts of Mount Vernon and Sedro-Woolley,

Mount Vernon Mayor Peter Donovan says the city is as prepared as possible for a potentially historic Skagit River flood, with downtown floodwalls deployed and Level 3 evacuation orders in place.

Communities along the Skagit River, from Sedro Woolley to Mount Vernon, are on high alert as two atmospheric rivers threaten major flooding.Mount Vernon's Mayo