[3] Despite the aggressive initial attack by first responders, the fire exploded rapidly due to a strong Santa Ana wind event that was occurring in the area during its ignition.
[6] Mandatory evacuations were ordered for a wide swath of over 1,800 homes surrounding the fire area, affecting over 7,500 residents.
[4][5] Shortly before 11 pm, a drone had been reported flying over the fireline which immediately caused the suspension and grounding of all nighttime water-dropping helicopters that were currently fighting the fire.
SCE issued a statement indicating that it had no specific information on the cause of the fire and that it would "cooperate with the appropriate investigative agencies if asked to do so.
"[10] The final report issued in October 2020 on the cause of the fire cited a combination of extreme wind conditions and a power line owned by California Resources Corporation that touched a metal pipe on the ground after an electrical conductor separated.