Gusty, damaging winds along with hot and dry conditions are expected throughout the weekend, the National Weather Service.
Northwest to north winds have already caused issues throughout Southern California, with reports of downed trees and power outages.
About 525 Southern California Edison customers lost power Thursday night, with more than 360 in Los Angeles County, the Los Angeles Times reported. It is unclear if all of the outages were wind-related, however.
The strongest winds are expected in the mountains, desert and inland valleys of Santa Barbara, Ventura and Los Angeles counties, according to the weather service. Gusts between 35 and 50 mph are in the forecast for those areas.
The combination of gusty winds and warm, dry conditions create critical fire weather conditions.
After diminishing slightly, the winds are expected to shift to the northeast, for a “decent Santa Ana wind event,” the weather service reported. The strongest winds will then be focused in Ventura and Los Angeles counties, before becoming more widespread on Sunday.
Sunday will be the warmest day of the weekend, with temperatures soaring to the upper 90s to the low 100s in the valleys and 80s and 90s expected in the coastal plain areas, according to the weather service.