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

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

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

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

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

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

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

A powerful extratropical cyclone struck the Pacific Northwest, leading to widespread damage and leaving nearly 600,000 ...

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

With millions of people preparing to travel for the Thanksgiving holiday, two strong storm systems are bringing high winds, ...

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

At least two people have died after a bomb cyclone slammed into the Pacific Northwest, snapping tree limbs and damaging homes ...