An arctic air blast swept south from Canada, spreading into the northern United States. Meanwhile, residents of the Pacific Northwest braced for possible mudslides and levee failures as floodwaters slowly recede.

Wintry weather is sweeping across parts of the United States this weekend, bringing with it brutally low temperatures

Washington state is under a state of emergency from a barrage of torrential rain that's sent rivers flowing over their banks, caused mudslides to close highways and trapped people in floodwaters

Record floodwaters are slowly receding in Washington state after triggering evacuations, inundating communities and prompting dramatic rescues from rooftops and vehicles.

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

A foot and a half of rain pushed the water levels of at least four rivers in Washington, including the Skagit River, to hit record highs, surpassing some of their previous records set over 35 years ago.

Lincoln County is reeling from the impacts of mass flooding this week as officials prepare to address the communities of Libby and Troy in two town halls this weekend.

"The only clothes I got is just my pajamas," 7-year-old Jocelyn Rosas told CBS News' Carter Evans, as flooding devastated parts of Washington state.