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 . The Bernardo Fire has been declared accidental , and officials believe the Cocos Fire was intentionally set . The causes of the other fires are still under investigation by multiple agencies , and a joint task force was formed to coordinate the investigations and facilitate communications . Six injuries and one fire-related fatality were reported
Cocos Fire
Cocos Fire
May 2014 San Diego County wildfires