Southern California Storm Brings Heavy Rain, Flooding Risk, and Landslide Concerns Across Los Angeles, Ventura, and Santa Barbara Counties
CALIFORNIA — Another Pacific storm system is set to impact Southern California this weekend, bringing widespread rain, periods of heavy downpours, gusty winds, and an elevated risk of flooding and landslides, particularly across Los Angeles, Ventura, Santa Barbara, and San Luis Obispo counties, according to the latest National Weather Service outlooks and forecast models.
Forecasters say unsettled weather will continue as this next storm moves inland, with rain developing Friday night and persisting through Sunday night, followed by only a brief break late Sunday into Monday before another system brings additional rain by mid-week.
Heavy Rain Expected From Friday Night Through Sunday
Forecast guidance shows rain becoming widespread Friday night, increasing in coverage and intensity through Saturday and Sunday. The most consistent rainfall is expected along the coastal counties and foothills, with mountain and hillside communities at the greatest risk for heavier totals.
Current projections indicate:
- 1 to 3 inches of rain common across coastal and valley areas
- 3 to 6 inches possible in mountains and foothills
- Higher localized totals in favored upslope locations
Rainfall rates could reach 0.25 to 0.50 inches per hour, with localized bursts up to 0.75 inches per hour, especially during the most intense periods.
Flooding, Mudslides, and Rockslide Concerns Increasing
With soils already sensitive in some areas, forecasters warn of enhanced risks for flooding and debris flows, particularly:
- Burn scar locations
- Steep hillsides and canyon roads
- Urban areas with poor drainage
Residents are urged not to cross flooded roads, even if water appears shallow. Rockslides and mudslides may develop with little warning, especially during heavier rain bands.
Wind, Coastal Hazards, and Marine Impacts
In addition to heavy rain, the storm is expected to bring gusty winds, particularly along the coast and in higher terrain. Wind gusts could reach 20–40 mph, with locally higher gusts near exposed ridges and coastal headlands.
Marine and coastal impacts may include:
- Hazardous seas
- Strong coastal winds
- Elevated surf
- Rough harbor conditions
Boaters are advised to remain in port during the strongest part of the storm.
Snow Limited to Higher Elevations
Snow is expected only at higher elevations, generally above 7,000 feet, where moderate accumulations are possible. Lower elevations will see rain only, keeping travel impacts focused on flooding rather than winter weather.
Short Break, Then More Rain Next Week
Forecasters note a brief lull late Sunday into Monday, but confidence is growing that another storm system will arrive by mid-week, continuing the pattern of unsettled weather across Southern California.
This extended stretch of wet weather increases the risk of cumulative impacts, particularly in areas that experience heavy rain during the first system.
What Residents Should Do Now
Officials recommend taking the following precautions:
- Avoid canyon roads and hillside travel during heavy rain
- Stay away from rivers, creeks, and flood channels
- Park vehicles away from tall trees
- Prepare for possible travel delays and road closures
- Have emergency supplies ready in case of power outages
Southern California residents should monitor updated forecasts closely as timing and rainfall totals may shift with each new model run.
For continuing updates, local impact reports, and weather alerts, follow Waldron News and check back often as this storm unfolds.