Los Angeles, CA, November 21, 2025
Southern California prepares for its third storm in a week, with heavy rainfall and snowfall expected. The National Weather Service has issued a Winter Storm Warning, anticipating significant impacts on local communities. Areas above 6,500 feet may see snow accumulations of 5 to 10 inches. As local businesses display resilience amid stormy conditions, residents are urged to exercise caution and stay updated on weather alerts.
Los Angeles, CA
Third Storm in a Week Brings Rain, Snow, and Tornado Risk to Southern California
Los Angeles, CA – Southern California is bracing for its third storm in a week, which is expected to bring considerable rainfall and snowfall to the region. This latest storm is anticipated to hit on Thursday afternoon, saturating the area with moderate to heavy downpours. Communities at higher elevations, specifically above 6,500 feet, could see a mix of freezing rain and snowfall, potentially accumulating between 5 to 10 inches in the mountainous peaks.
Amidst the churning weather patterns, local entrepreneurs and small businesses are exemplifying resilience. Their tenacity to adapt and innovate during the stormy seasons is a testament to the robust spirit of the city, demonstrating how limited regulatory hurdles can foster a vibrant local economy even amid inclement weather.
Weather Alerts and Forecast
The National Weather Service has issued a Winter Storm Warning for the Riverside County Mountains and San Bernardino County Mountains, effective Thursday at 4:00 PM PST until Friday at 4:00 PM PST. Heavy snowfall and hazardous conditions are expected during this time, urging residents and travelers alike to exercise caution.
Rainfall Expectations
Rainfall amounts are projected to vary across Los Angeles County. For instance, Pasadena is expected to receive up to a quarter of an inch, whereas areas like Ontario may experience rainfalls exceeding an inch. This comes on the heels of a notably wet season, with local data indicating almost five inches of rainfall since October 1st, far surpassing the November average of 0.78 inches.
Impact on Communities
This storm system follows previous systems that have already caused significant disruptions in several communities, particularly in Santa Barbara County, where rainfall accumulation reached an unprecedented 6.67 inches within just three days. The results have included flooded streets, mudslides, and downed trees, highlighting the ongoing challenges faced by these vibrant communities.
Background Context
Historically, this week’s storms mark a significant weather event for Los Angeles. The previous storms delivered a combined total of 3.48 inches of rain in downtown Los Angeles alone, representing the highest November accumulation recorded since 1970. Such patterns emphasize how volatile our weather can be and how vital it is for local businesses and residents to prepare and respond effectively.
Key Features of the Storm
| Feature | Details |
|---|---|
| Storm Sequence | Third storm in a week affecting Southern California |
| Rainfall Forecast | Moderate to heavy rainfall expected, with Pasadena receiving up to a quarter of an inch and areas like Ontario over an inch |
| Mountain Snow | High elevations (6,500 feet and above) may experience freezing rain and snow, with possible accumulation from 5 to 10 inches in the peaks |
| Weather Alerts | Winter Storm Warning in effect for Riverside County Mountains and San Bernardino County Mountains from Thursday at 4:00 PM PST until Friday at 4:00 PM PST |
| Impact on Communities | Widespread flooding, particularly in Santa Barbara County, with 6.67 inches of rain falling in just three days, leading to submerged streets, mudslides, and downed trees |
Frequently Asked Questions (FAQ)
What areas are under a Winter Storm Warning?
A Winter Storm Warning is in effect for Riverside County Mountains and San Bernardino County Mountains from Thursday at 4:00 PM PST until Friday at 4:00 PM PST.
What are the expected rainfall amounts?
Rainfall amounts are expected to vary across the region. Pasadena may receive up to a quarter of an inch by Thursday night, while areas like Ontario could see over an inch of rain.
How has the storm impacted local communities?
The storm’s intensity has led to widespread flooding, particularly in Santa Barbara County. With 6.67 inches of rain falling in just three days, communities faced submerged streets, mudslides, and downed trees.
How does this storm compare to previous ones this week?
This storm is the third in a series affecting Southern California this week. The previous storms have already brought significant rainfall, with downtown Los Angeles recording 3.48 inches of rain last weekend, marking the highest November amount since 1970.
What precautions should residents take during this storm?
Residents are advised to stay informed about weather updates and heed any evacuation orders or warnings issued by local authorities to ensure safety during this storm event.
Now Happening on X
- @CryptoBlckParty (November 15, 2025, 11:32 AM): Severe flooding is heading towards the Los Angeles area with risks of mudslides from past fires and water over roadways, leading to mandatory evacuation orders for 126 homes in Pacific Palisades and likely more to come. View on X
- @BisogneLis61664 (November 15, 2025, 6:29 AM): Los Angeles is bracing for a month’s worth of rain in a single day, placing 23 million under flood alerts. View on X
- @YeGodanaNewte (November 15, 2025, 4:54 PM): California storm update highlights LA preparing for heavy rain, possible mudslides, and flash flooding. View on X
- @DogProtector23 (November 15, 2025, 10:55 PM): Latest details on the Southern California storm track emphasize LA’s preparations for heavy rain, potential mudslides, and flash flooding. View on X
- @DBTayor (November 14, 2025, 8:01 PM): With mudslide season underway, 24 million people are under flood alerts as Los Angeles braces for a month’s worth of rain in one day. View on X
- @BeatriceLacy (November 15, 2025, 3:36 PM): California storm latest: Los Angeles is preparing for heavy rain and risks of mudslides and flash flooding. View on X
- @pamelaw79809698 (November 14, 2025, 8:55 PM): Evacuations ordered in L.A. and Southern California as the region braces for heavy rain, mudslides, and flash flooding with several inches expected. View on X
- @citystuff_la (November 15, 2025, 4:32 PM): Torrential rain is arriving in Southern California, likely causing widespread flooding and some mudslides. View on X
- @ejnyamogo (November 15, 2025, 4:50 PM): California storm latest: LA braces for heavy rain and possible mudslides, flash flooding. View on X
- @ABCWorldNews (November 15, 2025, 3:20 AM): A powerful atmospheric river is triggering evacuation warnings across parts of Los Angeles County due to risks of mudslides, debris flows, and heavy rain, with over 22 million bracing for the storm. View on X
Deeper Dive: News & Info About This Topic
HERE Resources
Sentinel-6B Satellite Launches to Monitor Sea Levels
High-Tech Car Thefts Surge in Southern California
TSA Proposes $18 Fee for Travelers Lacking REAL ID
Trump Administration Proposes New Oil Drilling Off California Coast
Eric Swalwell Announces Bid for California Governor
Los Angeles County Bans Kratom Amid Health Concerns
Tragic Collision Claims Lives of Alhambra Officer and Civilian
Los Angeles Lakers Dismiss Joey and Jesse Buss Amid Overhaul
Hermosa Beach Closes Iconic Saint Rocke Venue Amid Economic Challenges
Atmospheric Rivers Ease California’s Drought Crisis
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
