January 11, 2013 8:24 am Weather Video: Friday Jan. 11, 2013 Cold air is moving into the region, and frost and freeze watches will go into effect overnight. NBC4 forecaster Elita Loresca says Southern California can expect a cold weekend. US & World Videos 3:14 LAPD officers return to USC amid pro-Palestinian protest 2:42 USC students share thoughts on cancelation of main commencement 0:37 Car chase ends in standoff in Compton 3:47 Counter-protesters respond to pro-Palestinian encampment at UCLA 2:25 Police investigate stabbing near Metro bus