California Travel Alert: Winter Storms Bring Heavy Rain, Flooding Risks – What You Need to Know Before Heading Out This Christmas

Published on December 24, 2025

As Southern California braces for a major storm over the Christmas weekend, state officials are urging travelers to reconsider their plans due to the severe weather conditions expected to hit the region. The atmospheric river, also known as the “Pineapple Express,” is forecast to bring heavy rain, strong winds, and snow to much of the state, with flash flood risks particularly high in burn scar areas and mountainous regions. Local authorities are concerned that the storm’s intensity, which is expected to span from December 23 to Christmas Day, will cause widespread disruptions to travel.

The storm is expected to impact millions of people across California, with rainfall totals of up to 8 inches in some areas, and possibly more in the mountains. The National Weather Service (NWS) has issued flood watches, high wind warnings, and even evacuation orders for high-risk areas. For those planning to travel in California over the holiday season, the storm presents a serious risk to road conditions, flight schedules, and outdoor activities.

Flash Flooding and Mudslides: A Growing Concern for Vulnerable Areas

The storm is forecast to deliver rainfall at an intensity not seen in California for years. Areas already impacted by recent wildfires, such as parts of Los Angeles County, are facing the highest risks of flash flooding, mudslides, and debris flows. The NWS has warned that these areas could see rapid water accumulation in burn scar zones, where the ground is unable to absorb the heavy rains.

Local officials have issued evacuation warnings for residents in areas like the Palisades and Sunset burn scars, urging them to leave before the storm hits its peak intensity. Los Angeles County Sheriff’s Department, along with local police, have been going door-to-door to alert residents, reminding them of the urgent need to evacuate vulnerable properties.

Ariel Cohen, a meteorologist with the National Weather Service in Los Angeles, urged travelers to rethink their plans: “If you’re planning to be on the roads for the Christmas holidays, please reconsider your plans. This storm is likely to create hazardous, if not impossible, traveling conditions,” Cohen warned.

Airport and Road Closures: How to Navigate the Storm

In addition to flash flooding and mudslides, heavy rain and winds will lead to widespread travel disruptions. California’s major airports, including Los Angeles International (LAX) and San Francisco International (SFO), are expected to experience significant delays and cancellations due to the storm. Travelers are advised to check flight statuses before heading to the airport and prepare for potential long waits or rerouted flights.

On the roads, travelers will face dangerous conditions, particularly in the Sierra Nevada mountains, where snow and high winds could create near white-out conditions. The NWS has issued a high wind warning, cautioning travelers to avoid traveling in these regions unless absolutely necessary. Many mountain passes are likely to be closed, and snow chains may be required for those attempting to drive through the higher elevations.

The storm’s impact on travel is expected to peak on Christmas Eve, with heavy rain expected to continue through Christmas Day. Local authorities have warned that some roads could become impassable, and mudslides may block highways, creating significant traffic disruptions. Travelers in low-lying and flood-prone areas should expect road closures and delays, particularly along the coast and in mountainous regions.

Evacuation Orders and Emergency Response Efforts in High-Risk Areas

As the storm approaches, California’s emergency services are on high alert. Over 380 properties have been identified as requiring evacuation, with additional properties in Los Angeles County at risk for flooding. Authorities have set up temporary shelters for those affected by evacuations, and the California National Guard is on standby to assist with rescue operations if needed.

For residents in these high-risk areas, Los Angeles County Supervisor Kathryn Barger emphasized the seriousness of the situation: “When experts are projecting this type of rain in such a short period, it’s serious,” Barger said. The county has placed K-rails, large concrete barriers, around burn scar areas to help catch sliding debris during rainstorms. Free sandbags are also available to residents for additional protection.

What Travelers Need to Know: Safety Tips and Precautions

For those who must travel in California over the Christmas holiday, the following tips are crucial to staying safe:

1. Avoid Travel if Possible: If you are in or near an evacuation zone, consider postponing your trip or making alternative arrangements. Traveling during a storm can be dangerous.
2. Monitor Weather Updates: Keep an eye on the latest weather warnings, especially if you’re traveling in Southern or Northern California. Check road conditions and flight statuses regularly.
3. Prepare for Delays: If you’re flying, anticipate delays due to the weather. Make sure to arrive at the airport with plenty of time to spare and have alternate plans in case of cancellations.
4. Stay Safe on the Roads: If you must drive, ensure your vehicle is prepared for the storm. Pack emergency supplies like water, snacks, a flashlight, and blankets. Avoid traveling through flooded areas.
5. Follow Local Evacuation Orders: If you live in an evacuation zone, leave immediately when instructed. Follow official guidance to avoid getting trapped by rising waters or debris.

Looking Ahead: The Impact on California’s Winter Weather

While this storm will bring much-needed rain to California, it also serves as a reminder of the challenges posed by extreme weather patterns. As atmospheric rivers continue to cause severe weather events, travelers and residents will need to stay informed and prepared for unpredictable conditions. Though this Christmas may be marked by rain and wind, the recovery and rebuilding of infrastructure in the aftermath of the storm will be just as crucial as the storm’s immediate impact.

Conclusion: A Stormy Christmas for Southern California

As the Christmas storm takes shape, travelers across California must adjust their plans and prepare for significant weather disruptions. With the risk of flash flooding, mudslides, and treacherous driving conditions, it is essential to heed the warnings and stay safe during this powerful atmospheric river event. The state’s emergency services, along with local authorities, are doing everything possible to mitigate the storm’s effects, but travelers must take responsibility for their safety by staying informed and exercising caution on the roads.