Emergency personnel are preparing for torrential rain, flooding and possible tornadoes in California. NBC's Miguel Almaguer reports from La Canada Flintridge, where more than 200 residents have been evacuated.
epa02504630 Public Works workers inspect runoff from Laguna Canyon that flooded the streets of downtown Laguna Beach, California, USA, 22 December 2010. Cleanup efforts are underway after heavy rains flooded downtown with 3-4 feet of mud. EPA/PAUL BUCK