Rain is anticipated for Southern California from Wednesday into Thursday, with the National Weather Service issuing warnings about possible beach hazards and thunderstorms along areas from Oxnard to the Mexico border.
The Los Angeles-Oxnard weather service predicts a 30% to 40% chance of thunderstorms. There is concern for minor flooding and debris flow in L.A. and Ventura counties. However, most regions are likely to face only minor effects from this weather event, according to the office.
The Santa Monica Mountains are identified as the area most at risk for flooding. Areas with recent burn scars, such as the Palisades and Altadena, are particularly vulnerable, according to a spokesperson.
Expected rainfall amounts include 1.73 inches in Thousand Oaks, 1.53 inches in Oxnard, 1.47 inches in Santa Clarita, 1.31 inches at LAX, 1.29 inches in Covina, and just under an inch in Long Beach.
In the L.A. County and Oxnard beach regions, surf heights of 3 to 6 feet are expected through Thursday night, particularly on south- and southwest-facing beaches. Expected tidal ranges are between 5.5 and 6.2 feet.
The weather service’s San Diego office has issued a beach hazard warning, effective until 11 p.m. on Tuesday. The warning is for Orange, San Bernardino, Riverside, and San Diego counties, highlighting risks of dangerous rip currents and breaking waves, with surf expected to be 3 to 6 feet high. The greatest surf is anticipated on south- and southwest-facing beaches.
Rip currents pose a danger by potentially pulling swimmers and surfers out to sea, and waves risk washing people off beaches and rocks. Small boats near shore could also be capsized. Swimmers are advised to “remain out of the water to avoid hazardous swimming conditions.”
The likelihood of rain on Wednesday morning and afternoon is approximately 53% in Irvine and Anaheim, 46% in San Clemente, 44% in Ontario, and 40% in Riverside.
However, the probability of precipitation increases significantly Wednesday evening into Thursday morning, with Anaheim, Irvine, and San Clemente at 95%, Ontario at 92%, and Riverside and Lake Elsinore at 91%. San Bernardino has an 88% chance.
The National Weather Service in San Diego indicates a 15% to 25% chance of widespread thunderstorms across all four counties, defining this as a moderate risk.
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