A monster heat wave descended on Southern California on Sunday, bringing triple-digit temperatures across a large swath of the region and fueling dangerous fires in Silver Lake and San Diego County.

The Border Fire east of San Diego had burned 1,500 acres, and officials were evacuating the town of Potrero. As of noon, numerous areas had exceeded 100 degrees, including Burbank, Beverly Hills, Woodland Hills, Fullerton, Glendale and Riverside. The 106-degree reading in Burbank set a new record for the day and Woodland Hills tied its record. One National Weather Service weather site showed a 112-degree reading in Beverly Hills.