El Niño and La Niña are climate phenomena that are generally associated with wetter and drier winter conditions in the ...

Weather balloons and “hurricane hunter” planes aid the science of understanding California’s atmospheric rivers.

The weather phenomena are common for California winters, but they could cause dangerous debris flows or mudslides in recently ...

An expert at the Scripps Institution of Oceanography explains the weather phenomenon that can wreak havoc across California.

Winter alerts were in effect across the central Plains, the Midwest, the Ohio Valley and the mid-Atlantic ahead of two storms ...

Forecasters said it is expected to deliver about 2 inches of rain to most Bay Area cities Thursday and Friday, 3 to 5 inches ...

A group of scientists from Southern California recently came to the Bay Area to send up a series of weather balloons to help ...

Rain from the latest storm system has arrived, and widespread rain is likely Thursday. The strongest rain is expected early afternoon through the evening, and scattered showers hang on into Friday.

Rain fell across northern California on Saturday and could continue for days with an atmospheric river hanging over the ...