Pedestrians view trees blown over during a Santa Ana wind storm on Dec. 1 in Pasadena, Calif. High winds flipped over trees and trucks and knocked out power to more than 300,000 California customers. John Antczak/AP
A van parked in the Highland Park section of Los Angeles and another car are shown damaged by trees early Dec. 1 as high Santa Ana winds tore through the southland. Mike Meadows/AP
Keith Curo, of Pasadena, stops to look over the damage caused by a fallen tree at a Shell gas station on the corner of North San Gabriel Avenue and East Colorado Boulevard, Dec. 1, in Pasadena, Calif. Bret Hartman/AP
A downed traffic signal rests on the ground at the corner of Orange Grove Blvd and Allen Avenue after high winds ripped through the area on Dec. 1, in Pasadena, Calif. Mark Boster/Los Angeles Times/AP
Workers cut apart a tree that damaged a gasoline station during a high wind storm in Pasadena, Calif. on Dec 1. Gene Blevins/Reuters
A portion of a broken tree is pictured following a wind storm in Pasadena, Calif., Dec. 1. Mario Anzuoni/Reuters
Los Angeles City firefighters look over a eucalyptus tree that fell on a house and knocked down power lines, Nov. 30, in Beverly Hills, Calif. Mark J. Terrill/AP
A residential mailbox stands in front of the remains of a home remodeling project in Vacaville, Calif., Dec. 1. The framework and roof being supported by screw jacks to remove the foundation toppled into the side of a hair salon as high winds swept through the region. Rick Roach/The Vacaville Reporter/AP
Syria's largest city is contested by various rebel groups, including anti-US jihadists. A UN envoy is trying to broker a temporary cease-fire so that humanitarian aid can reach civilians.
ByDominique Soguel, Correspondent
The battle for Syria’s largest city is intensifying, as are UN-led diplomatic efforts to arrange a local cease-fire. UN envoy Steffan De Mistura is trying to broker a halt to fighting in Aleppo between an array of Islamist and moderate rebels and the government forces of President Bashar al-Assad. Jihadist extremists also have their sights on the city, which is divided into rebel and regime enclaves.