A person pushes a cart on a flooded street as Tropical Storm Hilary heads north near Palm Springs, California, on Aug. 20, 2023. (David Swanson/AFP via Getty Images)
A person in rain gear looks through the sand at the beach in Carlsbad, Calif., Sunday, Aug. 20, 2023. (AP Photo/Damian Dovarganes)
Surfer Adrian Zimmerman is pulled with rope attached to a bike as he skims with a board on a fully soaked lawn under heavy rain at Cannon Park in Carlsbad, Calif., Aug. 20, 2023. (AP Photo/Damian Dovarganes)
Cars sit submerged in floodwaters on the Golden State Freeway as tropical storm Hilary moves through the area on Aug. 20, 2023, in Sun Valley, California. (Justin Sullivan/Getty Images)
An aerial image shows mud along roadways following heavy rains from Tropical Storm Hilary, in Rancho Mirage, California, on August 21, 2023. (David Swanson/AFP via Getty Images)
Workers set up a sign near a flooded intersection as tropical storm Hilary moves through the area on Aug. 20, 2023, in San Bernardino, California. (Justin Sullivan/Getty Images)
The Garbage Boom on the Los Angeles River in Long Beach did its job overnight, collecting debris flowing down the river from tropical storm Hilary in Long Beach on Aug. 21, 2023. (Brittany Murray/MediaNews Group/Long Beach Press-Telegram via Getty Images)
A mailbox stands on a flooded residential street in Palmdale, Calif., as a tropical storm moves into the area, Aug. 20, 2023. (AP Photo/Richard Vogel)
Joseph Wolensky stands in the street with a sign that says "You call this a storm?" on Aug. 20, 2023, in Palm Desert, Calif. (AP Photo/Mark J. Terrill)
A person sits with umbrellas while watching surfers at Venice Beach on Aug. 20, 2023, in Los Angeles. (AP Photo/Ryan Sun)
The Los Angeles River swells with rushing water near Griffith Park in Los Angeles, California on Aug. 20, 2023. (Robyn Beck/AFP via Getty Images)
Maura Taura talks on a cell phone outside her home next to a downed tree after Tropical Storm Hilary went through, on Aug. 21, 2023, in Sun Valley, Calif. (AP Photo/Marcio Jose Sanchez)
A broken umbrella protrudes from a trash barrel as pedestrians walk down Hollywood Boulevard during Tropical Storm Hilary, Aug. 20, 2023, in Los Angeles. (AP Photo/Chris Pizzello)
A child plays in the rain, Sunday, Aug. 20, 2023, in Los Angeles. (AP Photo/Ryan Sun)
Vehicles cross over a flood control basin that has almost reached the street, Sunday, Aug. 20, 2023, in Palm Desert, Calif. (AP Photo/Mark J. Terrill)
Members of Cal Fire Pilot Rock 6 crew clear mud off the side of the road in the aftermath of Tropical Storm Hilary on Aug. 21, 2023, in Yucaipa, Calif. (AP Photo/Marcio Jose Sanchez)
Dorian Padilla stands near his car as he waits for a tow after it got stuck in the mud on a street as another vehicle goes by on Aug. 21, 2023, in Cathedral City, Calif. (AP Photo/Mark J. Terrill)
A vehicle makes its way through a flooded street in a suburban area of the San Fernando Valley in Los Angeles as a tropical storm moves into the area on Aug. 20, 2023. (AP Photo/Richard Vogel)
A plow clears debris along a flooded Sierra Highway in Palmdale, Calif., as Tropical Storm Hilary moves through the area on Aug. 20, 2023. (AP Photo/Richard Vogel)
A woman walks her dog past a eucalyptus tree that fell on a house Monday, Aug. 21, 2023, in Palm Desert, Calif. (AP Photo/Mark J. Terrill)
A toppled tree from the tropical storm covers a car in Los Angeles on Aug. 21, 2023. (AP Photo/Stefanie Dazio)
Mud and water flow through a crack off the side of the road in the aftermath of Tropical Storm Hilary on Aug. 21, 2023, in Yucaipa, Calif. (AP Photo/Marcio Jose Sanchez)
A eucalyptus tree that fell on a house is seen on Aug. 21, 2023, in Palm Desert, Calif. (AP Photo/Mark J. Terrill)