Fiona Chiang shields her face from blowing sand as she walks north on Carlsbad Boulevard in Carlsbad, Calif. Thursday, Jan. 10, 2013. Southern California is bracing for a cold snap that is expected to drop temperatures to a six-year low. (AP Photo/U-T San Diego, Bill Wechter) SAN DIEGO COUNTY OUT; NO SALES; COMMERCIAL INTERNET OUT; FOREIGN OUT
