What is an atmospheric river, responsible for the heavy rainfall on the West Coast?

03:26

Updated December 28, 2022

Ashley Ahn

A truck is driven through a flooded intersection of Salinas, Calif., on Tuesday. The first in a week of storms brought gusty winds, rain and snow to California on Tuesday, starting in the north and spreading southward. (AP)

This article was originally published on December 28, 2022.

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