On Friday, December 26, 2026, a winter storm turned Los Angeles County into a rain-soaked wonderland, delivering several inches of precipitation across the region.
Storm Overview
The system, fueled by an atmospheric river, brought record rainfall on Christmas Eve in some areas before adding more drops on Christmas and early Friday. The storm will continue to bring scattered showers before moving out of the region.
Five-Day Rainfall Totals
The following totals, updated at noon Friday, illustrate the storm’s impact:
- Mount Wilson: 8.12 inches
- Mount Baldy FS: 7.01 inches
- Canoga Park: 6.77 inches
- Hansen Dam: 6.59 inches
- Eaton Dam: 6.03 inches
- Saugus: 5.86 inches
- Eagle Rock Reservoir: 5.79 inches
- Agoura: 5.23 inches
- East Pasadena: 3.96 inches
- Downtown LA: 3.90 inches
- Beverly Hills: 3.80 inches
- Hollywood Reservoir: 3.75 inches
- LA City College: 3.38 inches
- La Habra Heights: 3.30 inches
Impact on Freeways
Flooding on Los Angeles freeways was reported as the storm produced hours of rain starting in the early morning. Drivers faced slick lanes and reduced visibility as water accumulated on major routes.
Debris and Mud Flow Concerns
The system heightened concerns over debris flows in burn zones and mud flows in the mountain community of Wrightwood. Local officials urged residents to stay alert for sudden runoff.
Flood Warnings Status
Flash flood warnings expired Friday morning, but flood watches and advisories remained in effect. Emergency services continued to monitor the situation and advise the public.
Scattered Showers Continue
Despite the warnings, scattered showers persisted throughout the day, keeping rainfall totals climbing in many neighborhoods.
Atmospheric River Role
The atmospheric river that fed the storm is a narrow band of moisture that can deliver intense precipitation. Its presence amplified the rain totals across the county.
Flood Watch Details
Flood watches covered the entire county, signaling that conditions could worsen. Residents were advised to avoid low-lying areas and prepare for potential water accumulation.
Community Impact
The mountain community of Wrightwood faced particular risk from mud flows, while urban areas dealt with flooding on freeways and water-logged streets.
Future Outlook
Weather officials expect the storm to move out of the region later in the week, but scattered showers may continue to arrive. Residents should stay informed through local news and official alerts.
Key Takeaways
- Record rain fell on Christmas Eve, adding to totals on Christmas and early Friday.
- Flash flood warnings ended Friday morning, but watches and advisories stayed.
- The storm caused freeway flooding, debris flow concerns, and mud flows in Wrightwood.
The winter storm’s heavy rainfall has left Los Angeles County grappling with flooding, heightened debris flow risks, and ongoing scattered showers as the weather system moves on.
