A major storm swept across the northwest U.S. Tuesday evening, battering the region with strong winds and rain and causing widespread power outages and downed trees that killed at least one person. The Weather Prediction Center issued excessive rainfall risks through Friday and hurricane-force wind warnings were in effect as the strongest atmospheric river — a large plume of moisture — that California and the Pacific Northwest

A powerful bomb cyclone is taking aim at the Pacific Northwest and northern California with hurricane force winds forecast to gust up to 70 mph with as much as 15 inches of rain and heavy snow in the mountains.

Heavy rain, flooding and strong winds are expected to last through Friday, bringing more than 10 inches of rain to some regions.