Wind advisories will be in place Thursday for the Los Angeles County Mountains, excluding the Santa Monica Range, as well as for the Santa Clarita and San Fernando valleys and Orange County inland areas, the National Weather Service said Wednesday.
The L.A. County advisory will run from 3 a.m. to 6 p.m. Thursday. Northeast winds of 20 to 30 mph, with gusts up to 50 mph, are expected. The winds may begin a little earlier in the mountains, the NWS said.
The Orange County advisory runs from midnight to 4 p.m. Thursday. North winds from 15 to 30 mph are in the forecast, with gusts over 50 in mountain passes and canyons, and over 35 in the valleys. The strongest winds will be confined to areas near and below the major passes, and below wind-prone canyons along the coastal slopes and foothills.
High winds will also affect parts of Ventura County.
The advisories came with warnings that the high winds can blow around unsecured objects and make driving difficult, especially for high-profile vehicles. Areas noted by the weather service for caution include the Golden State (5) and Antelope Valley (14) freeways.
In addition, tree limbs could be blown down and a few power outages may result, the weather service said.
The Santa Ana winds will also drive up temperatures, with forecasters saying the area will have above-average temperatures Thursday. Breezy and warm conditions are also expected Saturday.