NBC's Steve Patterson reports from Sanger, California, where 16 million people are under flood alerts as parts of the state are being pummeled by an atmospheric river. Residents in Monterey speak out on their experience after a levee broke at a nearby river that washed out the area. ...

California's dams are filling up, thanks to the winter's heavy storms -- but soon the state's dams will be opening their floodgates. ...