Flash flood warnings around Tropical Storm Hilary are issued throughout Southern California

Even parts of Los Angeles and Orange counties not expected to feel the full brunt of the system could see flash floods.

Tropical storm Hilary is expected to cause flooding in low-lying areas across Southern California, officials say, even in parts of Los Angeles and Orange counties not expected to feel the full brunt of the system.

Shortly after noon on Sunday, a flash flood warning was issued until 7:45 p.m. for Long Beach, Malibu, Hollywood, Beverly Hills, Universal City, downtown Los Angeles, Griffith Park, Culver City, Inglewood, Burbank, North Hollywood, Venice, Santa Monica, Van Nuys, Encino, Manhattan Beach, Alhambra and Hermosa Beach.

Isolated flooding, scattered rainfall, and thunderstorms will continue throughout the day before lighter rain falls by Monday morning. Around 1 and 1/2 to 3 inches of rain and 15 to 30 mph winds are forecast to reach coastal and valley areas in Los Angeles County.

Mud slide on the 14 FWY northbound #2 lane between Avenue P and Avenue N.

Heavy Flooding:
Avenue O & 30th St. W.
Avenue O & 25th St. W
Avenue N @ 17th W, 25th W, 30th W
Avenue N CLOSED btw Sierra Hwy & 10TH W.

These are just a few of many. Slow down, friends! pic.twitter.com/GrTnZ9jB4u

— LASD Palmdale Stn. (@PalmdaleSheriff) August 20, 2023

In the San Gabriel Mountains, heavy 30 to 60 mph winds, and 3 to 7 inches of rainfall are expected, said Mike Wofford from the National Weather Service.

A flood advisory is in effect until 8 PM PDT this evening for Los Angeles County, including Catalina Island. Rain rates between 0.20 and 0.50 inches per hour have become common. This will result in ponding of water across low lying areas and areas with poor drainage. #LArain pic.twitter.com/qAHQ2DGafA

— NWS Los Angeles (@NWSLosAngeles) August 20, 2023

As in other areas, officials in Orange County sent out alerts Sunday morning warning of strong winds and dangerous flash flooding, saying some parts of the county could get a year’s worth of rain from the tropical storm.

Interactive map: Risk of Hurricane Hilary flash flooding in Southern California

City News Service contributed to this report.