Southern California is bracing for a significant weather shift this week as forecasters predict two cold storms that could bring heavy rainfall and strong winds. The first storm is expected to hit the region on Monday evening, with a 70% chance of light showers on Tuesday. Areas south of Point Conception should prepare for gusty winds as well.
The real concern comes with a powerful atmospheric river set to arrive early Wednesday. This storm is anticipated to bring heavy rain along the coast and into the mountains, lasting through Thursday. According to Robbie Munroe, a meteorologist with the National Weather Service in Oxnard, “It’s unlikely any area is going to be spared from the moderate to heavy rain.” Some regions may experience isolated heavier showers.
Rainfall amounts could reach 1 to 2 inches in the valleys and 2 to 4 inches in higher elevations. A flood watch is expected to be issued from 6 p.m. Wednesday to 6 p.m. Thursday. Areas near recent burn scars are particularly at risk for flash flooding, debris flows, and mudslides.
Officials are taking these warnings seriously. Mark Pestrella, director of the Los Angeles County Public Works, expressed confidence in their preparations. The county has been proactive in clearing debris and is coordinating with local sheriff and fire departments for potential evacuations in vulnerable areas like Pacific Palisades, Altadena, and Malibu.
Coastal and valley communities can expect 1 to 2 inches of rain, with a 10% to 20% chance of thunderstorms that could lead to significant roadway flooding. Wind gusts may reach 30 to 50 mph, which could cause downed branches and power outages. Residents are advised to stay home during outages to avoid hazards from flying debris and to conserve food and battery life on devices.
In mountain areas, rainfall could reach 2 to 4 inches, while desert regions may see about an inch, along with heavy snow in some locations. Snow levels are expected to drop to between 2,500 and 3,000 feet by Thursday. The Sierra Nevada and Northern California could experience heavy snow and strong winds, with gusts between 40 to 60 mph.
Travel could be hazardous due to rain and snow, particularly on highways like the 5 Freeway near Tejon Pass and Highway 14 through the Antelope Valley. Drivers are urged to check road conditions and be prepared for delays.
As Southern California gears up for this stormy weather, officials remind everyone to stay safe and informed.