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.

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

Sign up for the Morning Brief email newsletter to get weekday updates from The Weather Channel and our meteorologists.A​ powerful low-pressure system known as a "bomb cyclone" has intensified off the West Coast as it ushers in a strong,