A Pineapple Express storm is set to deliver the heaviest rainfall of the holiday season, with Southern California residents urged to stay indoors or carry umbrellas. According to forecasts, the system will dump several inches of rain across most of the region, beginning late Tuesday and continuing through Saturday.
Storm Overview
NBC4 News aired a video at 6 a.m. on Dec. 19, 2025, announcing that rain is returning to Southern California next week. The system will tap into an atmospheric river, bringing enhanced moisture and high snow levels. NBC4 Meteorologist Belen De Leon noted that the storm will arrive in multiple waves, each with varying amounts of precipitation.
Rainfall Forecast
The first burst of rain is expected to bring 1 to 3 inches to many areas, while mountains could receive up to 5 inches. A second round may add another 1 to 2.5 inches, with mountain totals potentially reaching 4 inches. Snow levels are projected to drop to about 6,000 feet.
Wind and Mountain Conditions
“As for winds, strong and gusty southeasterly winds are likely, beginning Tuesday and continuing through Christmas Day,” the National Weather Service (NWS) stated. “The peak winds look to occur on Christmas Eve. There is a good chance that many areas will have at least advisory‑level winds with some mountain areas possibly getting warning‑level gusts. Overall, next week looks to be a very soggy and impactful holiday week. Given the significant amount of rainfall, there will likely be widespread hydrologic issues, including potential for mud and debris flows and widespread urban flooding. Also, there could be some significant winter weather issues up in the mountains. So, if traveling on Christmas Eve or Christmas Day, be prepared for impactful weather.”
These winds, coupled with heavy rain, raise concerns about flooding, hazardous mountain conditions, and major travel disruptions.
City Preparations
City officials took action on Friday in response to the forecast. Los Angeles is coordinating closely with the @NWSLosAngeles and monitoring the weather, with preparations already underway. Mayor Karen Bass tweeted on Dec. 19, 2025: “Sign up for alerts at https://t.co/LQimztvByU— MayorOfLA”.
The city is also anticipating the highest rainfall on Christmas Eve and Christmas Day, with wind and precipitation expected to peak during that period.
Key Takeaways
- Southern California braces for a Pineapple Express storm, with up to 5 inches of rain on Christmas Eve.
- Wind forecasts predict strong southeasterly gusts, especially on Christmas Eve, with advisory‑level winds common.
- City officials have begun preparations, and residents are urged to stay indoors or carry umbrellas.
The forecast underscores the need for vigilance as the storm delivers heavy rainfall, strong winds, and potential flooding across the region. Residents should follow official alerts and stay informed about evolving conditions.
Closing
As the holiday week approaches, the looming Pineapple Express storm reminds Southern California residents that weather can change quickly. With the forecast calling for significant rainfall, wind, and mountain hazards, staying prepared and listening to local authorities will be key to navigating the storm safely.
Hi, I’m Ethan R. Coleman, a dedicated journalist and content creator at newsoflosangeles.com — your trusted source for the latest news, insights, and stories from Los Angeles and beyond.
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