A “once in a decade” bomb cyclone is sweeping through the northwest United States and parts of Canada early Wednesday –– leaving at least one person dead and hundreds of thousands without power across Washington state,

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.

The Weather Prediction Center issued excessive rainfall risks through Friday and hurricane-force wind warnings were in effect as the strongest atmospheric river that California and the Pacific Northwest has seen this season overwhelms the region.