A third day of an atmospheric river storm has inundated Northern California and the Bay Area, prompting a series of warnings and advisories about local flooding.The National Weather Service issued a flood warning in Sonoma County for the Russian River at Johnsons Beach in Guerneville from 2 p.

A “bomb cyclone” over the Pacific Ocean is expected to bring days of damaging winds, rainfall and blizzards to Northern California, Oregon and Washington.

An atmospheric river storm dumped five months of rain in four days over Sonoma County, Calif., north of San Francisco. NBC News' national climate reporter Chase Cain reports on the latest river flood warning and snowfall totals on the West Coast.