Atmospheric rivers are long and relatively narrow bands of water vapor that form over an ocean. Some get the nickname ...

Ahead of the storm’s arrival, officials in Southern California distributed sandbags, prepositioned rescue swimmers and told ...

Heavy precipitation is falling mostly in mountain areas. A flood watch in also in effect for the coast of central California, ...

The normal rainfall amount for this point in the water year is 11.72 inches, she said. The above-average rainfall totals come in the wake of atmospheric river systems that have dumped rain on ...

Snow flurries fall in Seatac in Washington on Interstate 5 as Atmospheric River moves through (Video Credit: @wsdot_traffic).

An atmospheric river — the second to wallop the state ... that freezing rain and snow will impact parts of Oregon and Washington state overnight into Friday. These conditions were also expected ...

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

Investigators have recovered most of the airplane and helicopter from the Potomac River, but continued searching for objects ...

A strong Pacific storm with an atmospheric river will continue to pummel California ... falling across large proportions of the West, from Washington and Oregon, to the Rockies to the Desert ...

KOIN 6 Meteorologist Josh Cozart shares Portland's wintry mix, winter cold and sunshine, to an atmospheric river that's ...