The first of two "pineapple express" storms arrived in Southern California early Wednesday after delivering a stronger-than-expected pounding to Northern California, breaking rainfall records ...

LOS ANGELES — The first of two “pineapple express” storms arrived in Southern California early Wednesday after delivering a stronger-than-expected pounding to the San Francisco Bay Area ...

Call it an atmospheric river, a Pineapple Express or just weather, but some parts of California and the U.S. Northwest are being slammed by up to foot of rain before the storm runs out of moisture ...

That can quickly prompt melting, runoff and flooding and decrease the snowpack needed for California’s water supply. What is a pineapple express? It is a nickname for a strong atmospheric river ...

When the moisture-laden air moves over mountain ranges such as the Sierra Nevada along the California-Nevada line, the water vapor rises and cools, becoming heavy precipitation that falls as rain ...

When the moisture-laden air moves over mountain ranges such as the Sierra Nevada along the California-Nevada line, the water vapor rises and cools, becoming heavy precipitation that falls as rain ...