SKAGIT COUNTY — The sun set Thursday over the soggy and worried people of Western Washington while the fast-running Skagit River, full of sediment and debris, swelled.

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 Burlington Police Department and Skagit County Emergency management issued a city-wide evacuation this morning, after initial reports that the Slough, part of the Skagit River watershed, has jumped its banks. The City has nearly 10,000 residents.

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.

Residents and emergency crews in towns along the rain-engorged Skagit River in western Washington state braced on Friday for potential levee failures while National Guard troops assisted in evacuations after days of severe flooding in the Pacific Northwest.

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

Drier weather is coming, but flooding effects are likely to continue for days across portions of western Washington state and northwestern Oregon.

Major flooding is expected in Skagit County from Wednesday afternoon through Friday evening. According to a news release from the county Department of Emergency Management, the Skagit River is forecast to crest at 40.

FOX 13 is closely monitoring the Skagit River as its expected to reach record levels Thursday night into Friday morning, with a Flash Flood Watch in effect for the surrounding area.