"California Braces for Evacuations and Flood Warnings Amid Heavy Rain and Snowstorms"

Parts of Southern California are under evacuation warnings as a new atmospheric river storm hits the region, bringing the potential for high impact weather and flooding concerns through Tuesday evening. The storm, a continuation of the atmospheric river, could bring up to eight inches of rain in the mountains, causing mudslides, and waves of up to 20 feet in Santa Barbara County. Atmospheric rivers are ribbons of water vapor that extend from the tropics to the western U.S., providing the fuel for massive rain and snowstorms that can cause flooding along the West Coast.