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.

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

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.

As the Pacific Northwest grapples with the aftermath of severe flooding, thousands of residents have been forced to evacuate their homes.

The Pacific Northwest is expected to see up to seven inches of rain this week, as the eastern United States braces for arctic cold.

Pacific Northwest residents are bracing for another round of heavy rain after a powerful storm clobbered the region the day before. The first in what is expected to be a series of damaging storms

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

An executive order aims to tackle state regulation on artificial intelligence. An Obamacare exodus occurs before premium hikes. And, major flooding in the Pacific Northwest. President Donald Trump signed an executive order that seeks to limit states' ability to regulate artificial intelligence and upend existing laws in some of them.