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

Many atmospheric river events are weak ... becoming heavy precipitation that falls as rain or snow, according to NOAA. While traditional cold winter storms out of the north Pacific build the ...

Atmospheric rivers are a plume of moisture that extend across the Pacific to near Hawaii. When they hit land they can cause ...

An atmospheric river — the second to wallop the state ... often leading to "extreme rainfall and floods," NOAA said.

Amid a coast-to-coast barrage of winter storms, a firehose of moisture is poised Thursday to bring heavy rains and high winds ...

NOAA declares an El Niño when waters in the ... The landfall of a brewing atmospheric river can be predicted up to three weeks in advance (Scripps scientists at the Center for Western Weather ...

An atmospheric river is bringing heavy rain to most of California ... Gavin Newsom's office reported on Feb. 2. NOAA: Watch for slick roads, traffic delays on California highways during winter ...

Atmospheric rivers are a plume of moisture that extend across the Pacific to near Hawaii. When they hit land, they can cause heavy rains and snow. Here’s a look at the phenomenon: ...

Many atmospheric river events are weak ... becoming heavy precipitation that falls as rain or snow, according to NOAA. While traditional cold winter storms out of the north Pacific build the ...