The first storm was forecast to linger into the weekend and produce an additional 6-12 inches of rainfall, the weather ...

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

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.

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

The Pacific Northwest was pummeled by a bomb cyclone, a severe winter storm that has brought heavy rain and strong winds to ...

A “once in a decade” bomb cyclone pummeled the Pacific Northwest on early Wednesday, with southern Canada and Washington, ...

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

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

The Pacific Northwest has been bombarded with powerful winter storms this week. Is the bomb cyclone responsible for Iowa's ...

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

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