MONTECITO, Calif. – Residents piled into cars and fled on Saturday, turning downtown Santa Barbara into “a ghost town” as surging winds drove one of the biggest fires in California’s history toward the city and the nearby wealthy enclave of Montecito. The mandatory evacuations around Montecito and neighboring Summerland came as winds that had eased a day earlier roared back at around 30 mph, with gusts to about 60 mph. Firefighters sprayed water onto hot spots sparked by wind-blown embers. Firefighters also drove to the historic San Ysidro Ranch in yellow firetrucks as heavy smoke rose from the coastal hills, blotting out the blue skies. A portion of Santa Barbara was under mandatory evacuation.