Los Angeles County beaches have been reopened after reports of lightning triggered closures from Torrance to Big Rock in Malibu on Tuesday morning.
The National Weather Service had advised the county Fire Department's lifeguard division to evacuate the beaches, Fire Department Capt. Eric Howell told KTLA.
The division announced the reopening at 10:42 a.m., about an hour after saying crews were working on clearing the beaches.
The county typically sees two or three lightning advisories during the summer, Howell said.
Some beachgoers, however, don't follow the lifeguards' warnings, said the captain, who has worked with the Fire Department for 15 years.
"Sometimes, when the surf's really good, the surfers are not going to listen to us," Howell said. "But we do advise them to get out of the water."
Parts of Southern California had received some early morning sprinkles ahead of high temperatures in the forecast later Tuesday.
Light showers dampened Pasadena, Anaheim and Huntington Beach before 6 a.m.
The National Weather Service also reported patches of dense fog on the central coast in the Santa Maria area, which were expected to dissipate by 8 a.m.
Down in San Diego, forecasters urged motorists to drive carefully with showers, including some heavy downpours and possible lightning, expected to hit the region.
The agency previously warned that monsoonal moisture could bring some isolated morning thunderstorms on the coast and valleys on Tuesday. Mountain and desert communities could also expect scattered thunderstorms, forecasters said.
A heat advisory went into effect for the San Fernando Valley, Cuyama Valley and San Luis Obispo County mountains.
The heat will bring elevated fire danger in the inland areas through next weekend, with several days of triple digit temperatures possible across the deserts, valleys, foothills, and lower mountains, according to the Weather Service.
The warmest temperatures were expected on Tuesday and Wednesday.