A Riverside firefighter moves away as shifting winds bring a plume of smoke overhead during a wildfire Thursday, May 15, 2014, in Escondido, Calif. One of the nine fires burning in San Diego County suddenly flared Thursday afternoon and burned close to homes, trigging thousands of new evacuation orders. (AP Photo/Gregory Bull)

Photos: California wildfires

UPDATED

Wind-driven flames are threatening homes in the coastal city of Carlsbad, where officials have sent mandatory evacuation notices to more tha…