A massive plume of moisture from the Pacific called an atmospheric river will hit the West Coast on Tuesday afternoon and last into Friday.

An intense mid-latitude cyclone taking aim at the West Coast of the United States this week, ushering a strong atmospheric river into Oregon and California. This low-pressure system is going through bombogenesis,

The United States is on high alert as a powerful bomb cyclone, combined with a potent atmospheric river, is poised to unleash extreme weather across the west coast this week.

A huge storm is predicted to hit Washington, Oregon, and California this week linked to atmospheric river weather systems.

Starting Tuesday, the Pacific Northwest could get at least 6 inches of rain, with 20-plus inches possible in the mountains. Strong winds could cause power outages.

Over a month’s worth of rain, hurricane-force wind gusts and feet of mountain snow are coming to parts of the Pacific Northwest and Northern California.