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Southern California Prepares for Christmas Week Storm

Southern California landscape preparing for a storm during Christmas week.

Los Angeles, CA, December 22, 2025

As Christmas approaches, Southern California is gearing up for a significant storm, driven by a powerful atmospheric river known as the ‘Pineapple Express.’ This weather event, expected to bring heavy rainfall and strong winds, will impact the region through the holiday week. Residents and businesses are urged to prepare for flooding and hazardous travel conditions, emphasizing community resilience during this challenging weather period.

Los Angeles, CA – Southern California Prepares for Christmas Week Storm

Los Angeles, CA – As Christmas approaches, Southern California braces for a significant weather event brought on by a powerful atmospheric river, dubbed the “Pineapple Express.” This weather pattern is expected to bring substantial rainfall, strong winds, and potential flooding to the region from Tuesday, December 23, 2025, through Christmas Day. Residents and local businesses alike are preparing for one of the most significant precipitation events to hit the area in recent memory.

This meteorological phenomenon serves as a reminder of California’s unique weather patterns, shaping not only the environment but also the local economy. The upcoming storm underscores the need for effective planning and resilience among residents and small businesses that play a pivotal role in community economic growth, especially during the busy holiday season.

Storm Details and Timing

Weather forecasts indicate that the Pineapple Express will begin impacting Southern California on Tuesday evening, with rain intensifying through Christmas Eve. The heaviest downpours are expected late Tuesday night into Wednesday, with lingering showers into Christmas Day and tapering off by Friday, December 26. With the National Weather Service issuing alerts across the region, it is critical for residents to stay informed and prepared.

Expected Rainfall and Potential Impacts

Forecasts predict widespread moderate to heavy rainfall, with coastal and valley areas anticipating between 2 to 4 inches, while mountain regions could receive as much as 8 inches. Such substantial rainfall raises concerns regarding flooding, mudslides, and hazardous travel conditions, particularly in areas that have experienced recent wildfires. Individuals are encouraged to take precautionary measures to protect their properties and ensure safety during this storm.

Travel Considerations

Travel plans across Southern California will likely face disruptions due to the storm. Hazardous road conditions and potential airport delays are predicted, particularly around major hubs. Travelers are advised to monitor weather updates closely and consider adjusting their itineraries accordingly. Staying flexible and informed is essential to navigating this challenging weather situation.

Understanding Atmospheric Rivers

Atmospheric rivers are narrow bands of concentrated moisture in the atmosphere that lead to heavy rainfall and potential flooding. Often drawing moisture from tropical regions, the Pineapple Express is a prime example. This intense storm is forecasted to have a 90 percent chance of delivering significant rainfall, making community awareness and readiness critical to minimizing impacts.

Preparations for Residents

To mitigate the potential impacts of the storm, residents and local businesses are encouraged to check local weather forecasts regularly, secure loose outdoor objects, and ensure drainage systems are clear. In addition to individual preparations, community resilience plays a vital role in weathering such weather events, showcasing the spirit of support within the Los Angeles community.

Conclusion

The upcoming storm serves as a crucial reminder for Southern Californians to stay informed and prepared. By taking proactive measures, residents can protect themselves and their properties. Moreover, small businesses that rally to support one another reflect the innovative spirit of Los Angeles, showcasing how community collaboration boosts local resilience. As the weather unfolds over the Christmas week, individuals are encouraged to support local businesses that contribute to the region’s economic sustainability.

Frequently Asked Questions (FAQ)

What is an atmospheric river?

An atmospheric river is a narrow, concentrated band of moisture in the atmosphere that often leads to heavy rainfall and potential flooding.

When is the storm expected to arrive?

The storm is forecast to begin affecting Southern California on Tuesday night, December 23, 2025, with rainfall continuing into Christmas Day.

What areas will be most affected?

Significant rainfall is expected in Los Angeles, Ventura, Santa Barbara, and San Luis Obispo counties, with surrounding areas also experiencing heavy precipitation.

What are the potential impacts of the storm?

Potential impacts include flooding, mudslides, and strong winds capable of uprooting trees and causing power outages.

How can residents prepare?

Residents should stay informed by checking local weather forecasts, secure loose items outdoors, and ensure their drainage systems are clear. Planning travel with extra time and avoiding flooded areas is also advisable.

Key Features of the Upcoming Storm

Feature Details
Storm Type Atmospheric River (“Pineapple Express”)
Expected Rainfall 80% chance of 2+ inches in downtown Los Angeles; up to 6 inches in some areas
Timing Tuesday night, December 23, 2025, through Christmas Day
Impacts Flooding, mudslides, strong winds up to 53 mph
Travel Considerations Potential disruptions; plan accordingly

Deeper Dive: News & Info About This Topic

HERE Resources

Wildfire Erupts in Los Angeles County, Prompting Evacuations
Los Angeles Faces Severe Storm with Heavy Rainfall
Los Angeles Braces for Major Rainfall and Flooding
Los Angeles Experiences Unseasonable Warmth Before Holiday Storms
Atmospheric Rivers Ease California’s Drought Crisis
Merced Businesses Struggle Amid Construction Disruptions

STAFF HERE LOS ANGELES WRITER
Author: STAFF HERE LOS ANGELES WRITER

The LOS ANGELES STAFF WRITER represents the experienced team at HERELosAngeles.com, your go-to source for actionable local news and information in Los Angeles, Los Angeles County, and beyond, specializing in "news you can use" with coverage of product reviews for personal and business needs, local business directories, politics, real estate trends, neighborhood insights, and state news affecting the area—with deep expertise from years of dedicated reporting and strong community input, including local press releases and business updates, while delivering top reporting on high-value events like the Academy Awards, LA Auto Show, and Los Angeles Marathon, extending coverage to key organizations such as the Los Angeles Area Chamber of Commerce and the Los Angeles Tourism & Convention Board, plus leading businesses in entertainment and technology like Warner Bros. and SpaceX, and as part of the broader HERE network including HEREAnaheim.com , HERECostaMesa.com , HEREHuntingtonBeach.com , and HERESantaAna.com , providing comprehensive, credible insights into Southern California's dynamic landscape. HERE Anaheim HERE Beverly Hills HERE Coronado HERE Costa Mesa HERE Hollywood HERE Huntington Beach HERE Long Beach HERE Los Angeles HERE Mission Viejo HERE San Diego HERE Santa Ana

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