A "bomb cyclone" and an "atmospheric river" are poised to deliver intense weather to the West Coast of the U.S. this week, bringing heavy rain, snow and strong winds, according to forecasters.

An atmospheric river and bomb cyclone are what make this storm so powerful — but what do those terms mean? Atmospheric rivers are no strangers to the western U.S., especially during the fall and ...

KOIN 6 Meteorologist Josh Cozart explains the trifecta of events happening over the Pacific Ocean this week and the impacts it will have on the Portland area. KOIN 6 Meteorologist Josh Cozart ...

Heavy rain is hitting the Bay Area and coastal areas this week as an atmospheric river moves through Northern California.

Sometimes in the winter, you'll hear weather folks describing a big storm as a bomb cyclone. But what, exactly, is it? A bomb cyclone, which occurs through the process known as bombogenesis, is ...

Residents in the Santa Cruz Mountains are stocking up on essentials and preparing for another atmospheric river, drawing on ...

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Forecasters warn of dangerous conditions as another powerful atmospheric river takes aim at California. While these storms are dreaded for the damage they can cause, they are also essential to the ...

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Chido was the most intense tropical cyclone on record to make landfall in the French territory of Mayotte, an archipelago in the southwestern Indian Ocean. The atmospheric river is expected to ...

The North Bay will bear the brunt of the incoming atmospheric river with the heavy rain arriving on Monday and Tuesday.