Overview
- NWS advisories issued Sunday cover San Bernardino and Riverside County valleys and mountains, the Santa Ana Mountains and foothills, and the San Gorgonio Pass near Banning.
- In the Inland Empire, forecasters expect northeast winds of 15–30 mph with gusts up to 45 mph, with local peaks near 60 mph in canyons and passes such as Cajon and San Gorgonio.
- Elsewhere across Southern California, mountains and valleys are projected to see gusts reaching 65 mph under separate high-wind alerts.
- Timing varies by corridor, with the I‑5 and Highway 14 mountain routes gusty from Sunday evening through Monday afternoon, while Inland Empire advisories run until early Tuesday afternoon.
- Officials warn of unsecured objects becoming hazards, downed tree limbs, scattered power outages, and difficult driving for high‑profile vehicles, with saturated soils increasing the risk of tree and power‑line damage.