Forecasters said a final round of rain, snow and high winds were targeting the Pacific Northwest and Northern California ...

A developing storm system forecast to swing off the Oregon and Washington coastline on Friday will add to the region's ...

A bomb cyclone slammed the Pacific Northwest earlier this week, causing widespread power outages. Here's what it looked like ...

A bomb cyclone slammed the Pacific Northwest and Canada's British Columbia on Tuesday night into Wednesday morning, killing ...

A powerful bomb cyclone is taking aim at the Pacific Northwest and northern California with hurricane force winds forecast to ...

A bomb cyclone, or a severe winter storm, has hit the Pacific Northwest, bringing heavy rain and winds to northern California ...

In northern California, flood and high wind watches were in effect, with up to 8 inches (20 centimeters) of rain predicted ...

Nearly 600,000 customers were without power in the Pacific Northwest on Wednesday as a bomb cyclone unleashed strong winds ...

A deadly weather system left tens of thousands without power in Washington. The “atmospheric river” storm from the Pacific ...

Behold, the majesty and terrifying power of the extratropical cyclone that swept over the Pacific Northwest this week.

Bomb cyclones form when a storm's atmospheric pressure drops sharply within 24 hours in a process called bombogenesis.

Residents and businesses in the Northwest U.S. were left without power after a deadly "bomb cyclone" storm knocked down trees ...