Los Angeles is bracing for two significant storms this week, forecasted to bring heavy rain and significant snowfall to Southern California. While the first storm rolls in overnight, the second is expected to pack even more punch, raising concerns about flooding and hazardous conditions.
The first system will make its presence felt from Monday night, March 10, 2025, bringing light to moderate rain to many parts of metro Los Angeles, with expectations of some areas receiving less than half an inch of rainfall. KTLA weather anchor Kacey Montoya explained, “I expect we’ll see showers continuing [into] the afternoon and then tapering off [in the] evening.”
By Wednesday, March 12, 2025, conditions will start to change dramatically. Forecasters anticipate the arrival of the second, more powerful storm, due to hit the region with the heaviest rain expected after midnight. “A moderate to strong winter storm will likely bring periods of moderate to heavy rain and mountain snow to Southwest California,” the National Weather Service (NWS) warned.
The heavy rains could overwhelm drainage systems, leading to localized flooding and mudslides, especially across urban areas and slopes affected by previous wildfires. “Hazardous debris flows are possible near burn scars,” said meteorologist Rose Schoenfeld, emphasizing the sensitivity of recent burn areas such as the Eaton and Palisades scars. The NWS issued flood watches starting at 10 p.m. Wednesday, March 12, continuing until 6 p.m. on Thursday, March 13.
Rainfall totals are projected to range significantly. Coastal areas and valleys could see between 1 to 2 inches of rain, whereas the mountains might receive 2 to 4 inches. Those locations above 6,000 feet may even be blanketed with up to 2 feet of snow. Meteorologist Jason Farhang noted, “We’ll probably have some convective or heavier showers,” indicating sporadic bursts of intense rainfall.
To prepare for the influx of water, residents have been urged to stay vigilant. City officials are advising locals to monitor continuous updates and be prepared for potential power outages. Steps include securing outdoor furniture to mitigate wind damage and keeping essentials on hand. “If you have to travel, exercise caution on roads,” advised Montoya.
The atmospheric river expected later this week could bring tremendous impacts to the mountain regions. Snow levels are projected to drop to around 3,000 feet, with snowfall occurring as low as 2,500 feet during the storm’s peak. Reports indicate winds may gust as high as 50 mph, complicATING travel conditions across several mountain passes.
Officials are also taking proactive measures across the region. Mark Pestrella, director of the Los Angeles County Public Works, confirmed they are prepared to handle increased rainfall and debris flows. “We’re feeling comfortable about the amount of debris we’ve taken and our capacity to capture debris flows based on the rainfall prediction,” Pestrella assured.
Travelers have been warned to prepare for potential delays due to hazardous conditions from both rain and snow, which may cause significant safety risks on the roads. Drivers are advised to allow extra time for travel and check roadway conditions regularly.”
While the rains are favorable for combating drought conditions, they also pose immediate risks. California was previously under considerable drought conditions, but the recent precipitation activities are offering some relief. According to the latest US Drought Monitor, parts of Southern California are still reported to be experiencing severe drought.
By Friday, March 14, 2025, weather conditions are expected to clear up temporarily, offering some respite from the storms. Nevertheless, the long-term forecast suggests additional systems may emerge, keeping weather watch staff busy.
Residents are reminded to prepare adequately as the storms approach, embracing both the benefits and dangers they can bring to the region. Timing, as always, is key when managing the extremes of weather Southern California experiences.