Atmospheric rivers are more common during the winter months, but officials are warning people not to let their guard down.

LOS ANGELES—An atmospheric river storm is pounding parts of California on Friday after ... The Santa Barbara Office of Emergency Management told residents in communities near the Lake Fire ...

Map of Sierra Nevada in California showing how an atmospheric river develops. Most atmospheric rivers are weak and do not cause damage. In fact, they can provide much-needed rain or snow.

Atmospheric river storms are drought busters in California, dumping huge amounts of rain in narrow corridors within short periods of time. The ongoing storm slamming Los Angeles, the nation's ...

Such atmospheric river events are known to provide much of California's wet season rainfall, as well as its worst flooding. Flights from the West Coast to Hawaii and Asia next week may take longer ...