May 2014 San Diego County wildfires
The May 2014 San Diego County wildfires were a swarm of 20 wildfires that erupted during May 2014, in San Diego County, California, during severe Santa Ana Wind conditions, historic drought conditions, and a heat wave. The main event during mid-May was preceded by a precursor fire that ignited on May 5.
Source: Wikipedia — May 2014 San Diego County wildfires (CC BY-SA 4.0)