High Wind Warning in Effect for San Gabriel Mountains

Alert Details

The National Weather Service in Los Angeles/Oxnard CA has issued a High Wind Warning (NWS code: HWW) for the San Gabriel Mountains and surrounding corridors. The alert was issued early Wednesday morning and remains in effect through Thursday morning.

Affected Areas

The warning specifically impacts the following geographic regions:

• Western San Gabriel Mountains
• Highway 14 Corridor
• Eastern San Gabriel Mountains

Expected Conditions

Forecasters expect northwest winds between 25 and 40 mph. Peak wind gusts are projected to reach up to 65 mph. These damaging winds have the potential to blow down trees and power lines, and widespread power outages are possible. Travel will be difficult, especially for high-profile vehicles.

Timeline

• Onset: 9:00 PM PST, Wednesday, March 4, 2026
• Duration: The warning remains in effect until 9:00 AM PST, Thursday, March 5, 2026

What You Should Do

Residents in the warning area are advised to remain in the lower levels of their homes during the windstorm and avoid windows. Watch for falling debris and tree limbs. If you must drive, use extreme caution and be prepared for sudden crosswinds, particularly on mountain passes and the Highway 14 corridor.