At a Glance
- Heavy rain expected on Christmas Eve and Christmas Day.
- Several canyon roads will close for the storm.
- Rainfall rates could exceed 1 inch per hour on Wednesday.
- Why it matters: Residents should prepare for road closures and potential flooding.
Los Angeles County is bracing for a major rainstorm that will hit the region on Christmas Eve and Christmas Day. The storm will trigger closures of key canyon roads and a flood watch for much of the county. Rainfall rates are projected to surge to more than an inch per hour on Wednesday.
Storm Overview
Los Angeles County began the week dry, but the forecast now calls for widespread rain starting Tuesday, with wet weather continuing through the weekend. Rain is expected to begin Tuesday in the Los Angeles area, and the storm will intensify over the holiday period, peaking on Wednesday. Hourly rainfall could exceed 1 inch per hour during the storm’s height.
Road Closures
Several canyon roads will close in the mountains near Malibu and other areas ahead of the holiday week rain.

| Road | Closure Type | Time |
|---|---|---|
| Malibu Canyon Road | Soft (emergency vehicles only) | 8 p.m. Tuesday |
| Tuna Canyon Road | Full | 8 p.m. Tuesday |
| Topanga Canyon Boulevard/State Route 27 | Full | 9 p.m. Tuesday |
City of Malibu said:
> “Both roads will remain closed until rain subsides and crews can safely clear debris and reopen the roadways,” the city of Malibu said in a statement. “Drive cautiously, watch for mud, rock and water in the roads, keep headlights on, watch for workers and work vehicles. Come to a complete stop at any malfunctioning traffic signal under CA law.”
Flood Watch and Rainfall Forecast
A flood watch was issued for Tuesday afternoon through Wednesday evening for much of Los Angeles County. Mud and debris flows are possible in foothill and mountain areas, including recent burn scars.
Key Takeaways
- Heavy rain on Christmas Eve and Christmas Day will affect Los Angeles County.
- Canyon roads, including Malibu Canyon and Tuna Canyon, will close from 8 p.m. Tuesday until after the storm.
- Flood watch and potential mud, rock, and debris flows are in place, with rainfall rates up to 1 inch per hour on Wednesday.
Residents should stay informed and heed local advisories as the storm approaches and road closures take effect.

