At least one person is dead and hundreds of thousands of were without power early Wednesday as a powerful bomb cyclone hit the Pacific Northwest and northern California.

At least one person has died and hundreds of thousands are are without power Wednesday as a powerful bomb cyclone approached the Pacific Northwest and Northern California, causing high winds and heavy rain and snow.

One person is reported killed as the largest atmospheric river system of the year sweeps across California, Oregon, and Washington, where up to 16 inches of rain could fall.