Portions of western Washington state have experienced a month’s worth of rain within the past few days, causing historic flooding, damaging mudslides and more than 100,00 people facing potential evacuations.

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

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.

“Due to the rising water levels in the Snohomish river adjacent to the shelter, the Everett Animal Shelter is at significant risk of flooding,” Everett Animal Shelter in Everett, Washington said. “Out of an abundance of caution, we will be initiating a temporary evacuation of the animals to ensure their safety and well-being.”

A powerful atmospheric river has triggered historic flooding across western Washington, forcing evacuations as the Skagit River nears record-shattering levels and communities brace for widespread damage.

Six rivers around Western Washington could see record flooding this week, as a second round of an intense storm rolls in from the Pacific.

BNSF Railway crews worked over the weekend to repair flood-damaged sections of the railroad in Washington state, which was hit by record rainfall last week. Some areas of western Washington and Oregon received 10 to 17 inches of rain,

Unprecedented flooding is driving tens of thousands of people from their homes. Local authorities are sharing resources, and the state is asking for federal aid.