Los Angeles, California – A powerful Pacific storm system continues to funnel deep moisture into California, setting the stage for multiple rounds of heavy rain, thunderstorms, and mountain snow through Monday evening. The prolonged pattern raises growing concerns for flash flooding, especially in coastal communities, burn scar areas, and regions with poor drainage.
According to the National Weather Service Weather Prediction Center, a deep upper-level trough remains anchored over the West Coast, repeatedly pushing moisture inland and triggering waves of showers and thunderstorms across much of the state. Coastal ranges and complex terrain could see widespread rainfall totals of three to six inches, while portions of the Sierra Nevada are expected to receive multiple feet of snow above 5,000 feet.
The most significant impacts are expected from Northern and Central California southward into parts of the Central Coast, where repeated downpours may overwhelm creeks, urban drainage systems, and low-lying roads. Travel through mountain passes could become difficult or impossible as heavy snow and reduced visibility develop in higher elevations, while lower elevations contend with ponding water and slick highways.
Residents are urged to avoid driving through flooded roadways, monitor local alerts, and prepare for rapidly changing conditions. The unsettled pattern is expected to persist into early next week, and forecasters warn that additional flood advisories or watches may be issued as rainfall continues.
