The NWS issued a red flag warning on Oct. 15 for the Los Angeles County San Gabriel Valley forecast zone that will stay in effect until Saturday evening. The most extreme conditions are expected in the Ventura and Los Angeles County valleys and mountains, particularly Santa Clarita, Thousand Oaks, and Simi Valley.

As of Thursday night, Southern California Edison shut off power to tens of thousands of customers. Nearly 90,000 PG&E customers were also left without power.Shutting down power helps stop downed power lines or aging infrastructure from sparking fires. 

If you live in an impacted area, sign up for local emergency alerts, plan for power outages, and avoid any outdoor activities that might ignite sparks like BBQs, campfires, or discarded cigarette butts. 

One Southern California town is even encouraging residents to secure hallowed decorations—the giant skeleton and inflatable pumpkins haunting front lawns. High winds can turn Halloween decorations into hazards,” the city of Pasadena said in a Facebook post. “Secure them before winds pick up.”