Mysterious Atmospheric River Soaks California, Where Megaflood May Be Overdue

Mysterious Atmospheric River Soaks California, Where Megaflood May Be Overdue: Northern California is experiencing the first days of what weather forecasters are warning will be a long series of torrential rainstorms that could cause serious flooding across the northern one-third of the state. The relentless storms are being driven by a feature in the atmosphere you have probably never heard of: an atmospheric river. [More]