Overview
- National Weather Service advisories remain in effect with peak gusts near 65 mph expected in mountain and valley corridors through Monday afternoon.
- Targeted areas include the western Santa Monica, Santa Susana and San Gabriel mountains and the Interstate 5 and Highway 14 corridors under strengthening northeast winds.
- A separate alert covers San Bernardino and Riverside county mountains and valleys and the Santa Ana Mountains, where gusts could reach 60 mph and persist into Tuesday afternoon.
- NWS Las Vegas issued a wind advisory for the Upper Colorado River Valley in San Bernardino County calling for north winds of 15 to 25 mph with gusts up to 45 mph through 9 p.m., with rough conditions on Lake Mohave and strong crosswinds on Highways 163 and 68 and Interstate 40.
- Forecasters warn of possible power outages, downed trees and lines and difficult travel for high‑profile vehicles, and they note more rain could return later in the week, including a chance on New Year’s Day.