Southern California braces for devastating Christmas storm

Driven by an atmospheric river known as "the Pineapple Express," which moves heavy moisture from the tropical climes of Hawaii to rain on the West Coast, the storm is expected to deliver months' worth of rain in the next few days. "Severe, widespread flash flooding is expected," the National Weather Service said, adding that "lives and property are in great danger." The first burst of heavy rain hit the region overnight Tuesday, with more expected Wednesday. Storm impacts were already being felt...