Washington is bracing for more flooding beginning Monday, after historic inundation last week led to thousands of evacuations and prompted the Gov. Bob Ferguson to declare a State of Emergency. Another atmospheric river is blasting the region,

"The early storm will not be as strong as the event we saw early last week, though it will impact the same areas," a meteorologist told Newsweek.

MONROE, Wash. -- A blast of arctic air swept south from Canada and spread into parts of the northern U.S., while residents of the Pacific Northwest braced for possible mudslides and levee failures from floodwaters that are expected to be slow to recede.

Record river flooding is ongoing in parts of Washington State, but following a drier weekend, a new worry for wetter weather will arise early in the week ahead.

Heavy rain​ has triggered flooding, rescues and road closures in Washington state, with Gov. Bob Ferguson declaring a statewide emergency​.

11 A.M. DEC. 12: The day after heavy rains caused flooding that washed out bridges and roads in northwest Montana’s Libby, the roughly 2,700-person town is expecting light rain on Saturday before another big push of Pacific moisture on Monday and Tuesday next week, according to the National Weather Service.

Following a very wet pattern last week, AccuWeather meteorologists warn that additional rain in the Northwest this week that will heighten the risk of widespread flooding.

Washington state residents are bracing for possible mudslides and levee failures from floodwaters that are expected to be slow to recede.