A winter weather warning was announced as 18 inches of snow and dangerous winds are expected to hit this week.

Residents across Oregon and western Washington will see the winds pick up tonight and early Wednesday as the next incoming weather maker arrives.

Beyond dam breaches near Seattle, the barrage of atmospheric rivers in recent days has increased the threat of flooding and landslides in the region. Residents should pay attention to the National Weather Service and local authorities throughout the week for guidance and information.

Approximately 63 million Americans are under a cold weather advisory, and around 11 million are under a freeze warning — mainly in the Gulf States where such low temperatures are rare.

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

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.

Washington State and the Pacific Northwest are facing multiple rounds of torrential downpours this week, raising flood risks in the region as residents are still grappling with last week’s historic rains.

A powerful atmospheric river has drenched Washington state with nearly 5 trillion gallons of rain over the past week.

After a weekend of snow in the Midwest, the winter weather is focused farther south on Monday, with snow hitting Virginia, West Virginia and North Carolina. Meanwhile, the Pacific Northwest is bracing for an atmospheric river set to bring dangerous flooding.

Meanwhile, residents of the Pacific Northwest braced for possible mudslides and levee failures as floodwaters slowly recede.

Much of the West Coast is bracing for an active stretch of stormy weather that could lead to holiday travel delays.