A powerful storm out of the northern Pacific will generate relatively light rain in the Southland Wednesday and dangerously high surf along the coastline from Wednesday night through Sunday, National Weather Service forecasters said Tuesday.
The system's cold front will move into San Luis Obispo and Santa Barbara counties Wednesday morning, churning up gusty winds and light-to-moderate rain, which will spread into Ventura County early Wednesday afternoon and into L.A. County early in the evening, according to an NWS advisory.
The NWS forecast between a quarter-inch and a half-inch of rain in Ventura and Los Angeles counties, with up to an inch on south-facing slopes in the San Gabriel Mountains. The snow level will remain high, generally above 7,500 feet.
Along the coast, big surf is expected at west-facing beaches from the Central Coast to Los Angeles County and south of it as a result of a large swell generated by the storm in the Northern Pacific, according to an NWS coastal hazard advisory. The region could experience local sets of up to 15 feet, it said.
"Highest surf can be expected Thursday afternoon through Friday... then diminish slowly through Saturday night and into Sunday," according to the advisory. "Surf and swell conditions could be hazardous to anyone entering the water late Wednesday through this weekend, with dangerous rip current potential."