More than a foot of rain is forecast in Northern California and southwest Oregon, likely causing life-threatening flash flooding and rock slides.

National Weather Service satellite images show a dramatic, churning cyclone approaching California's coast as parts of ...

A strong storm brewing offshore is causing breaking waves over 30 feet in some areas and creating dangerous ocean conditions.

The storm system, which hit starting Tuesday, is considered a '' bomb cyclone,'' which occurs ... was forecast in Northern California and southwestern Oregon through Friday. Dangerous flash ...

A bomb cyclone back in November caused some of the largest waves ever recorded, including one massive 75-foot swell off the coast of California.