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

Atmospheric rivers are long and relatively narrow bands of water vapor that form over an ocean and flow through the sky, ...

Widespread light rain has been coating San Diego County since early Wednesday morning but the heavier, more problematic rain is expected Thursday.

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

Pineapple Express has drenched Northern California in the last few days—but what exactly is it? How common is it? Also, go ...