The National Weather Service issued its highest fire weather alert level for portions of the Los Angeles area for Monday into Tuesday morning, as powerful Santa Ana winds return. Threat level: The "Particularly Dangerous Situation" Red Flag Warning indicates any fires that ignite could quickly grow out of control.

A rare Particularly Dangerous Situation warning has been issued for Southern California as a powerful and potentially damaging Santa Ana wind event​ is expected.

Parts of Los Angeles, Orange, Riverside and San Bernardino counties all will be under a red flag warning beginning on Monday morning, the NWS said. The strongest Santa Anas are expected Tuesday morning.