Arkstorm: What is it and could it hit California?

When Californians think about the big one, it's typically an earthquake. But meteorologists are now debating another extreme weather event that could hit the Golden State... an Arkstorm or ??Atmospheric River 1,000 year storm? that could dump as much as 100 inches of rain on some parts of the state, displacing millions.

Heavy rain coming to Southern California

Multiple rain storms are coming to Southern California, powered by a pineapple express. Jonathan Novack has the latest on the storm, while Laura Diaz explains how San Clemente is preparing.