Coastal flooding and dangerous surf prompted warnings along much of California’s coast Saturday as swells from Tropical Storm Rachel combined with high tides and other weather systems. In Long Beach, residents in part of the Peninsula remained under a mandatory evacuation order after waves flooded homes and streets and damaged the waterfront’s bulkhead and boardwalk. The National Weather Service warned that vulnerable south-facing beaches in Los Angeles County could face especially significant flooding Sunday morning. Its San Diego office said the highest risk was expected along the Orange and San Diego county coasts, where surf, onshore winds and high tides would coincide. Rachel’s forecast track had shifted farther south, but forecasters said Southern California could still see strong winds and hazardous surf. The storm’s center was expected to move ashore in northern Baja California on Saturday night. A tropical storm watch remained in effect for San Diego County. Long Beach’s evacuation order covers homes on Seaside Walk between 64th and 66th places. It began Friday evening and was set to run through noon Tuesday, though the city said the return timeline could change with conditions. Waves overtopped the bulkhead, sending water into homes and streets. City inspectors marked eight buildings across 13 addresses unsafe to enter and placed at least one other building under a restricted-use designation. The city restricted nonresident traffic on the Peninsula and began bracing damaged waterfront sections with timber and thousands of sandbags. A commercial crane was scheduled to place additional sandbags near 65th Place. Mayor Rex Richardson urged residents to prepare, while City Manager Tom Modica said the city expected a prolonged recovery and might seek state and federal help. The Los Angeles Harbor tide gauge recorded a peak of 7.7 feet Saturday morning, about 1.6 feet above the predicted tide. The weather service forecast tides near 8 feet Sunday morning, levels that could approach or exceed recent records for Los Angeles County. Newport Beach closed its beaches and piers Saturday morning after flooding on the Balboa Peninsula. Beaches reopened by early afternoon, but Newport and Balboa piers and the Wedge remained closed. The city had declared a local emergency Friday. Sunday’s high tide was forecast to reach 7.6 feet at 9:48 a.m.; officials warned that low-lying homes, businesses and infrastructure could flood. Further north, weather-service buoys off Northern California measured waves of 10 to 15 feet and wind gusts of 30 to 40 mph. A beach hazards statement for the coast from Sonoma County to Monterey County was in effect through Monday, along with a marine advisory for boaters. Forecasters expected breaking waves of 13 to 16 feet as Rachel’s southerly swell met waves from a powerful low-pressure system in the North Pacific. They warned of sneaker waves and strong rip currents. Rain was expected to be heaviest late Saturday night and Sunday morning. Most coastal areas could receive about an inch or less, while some mountain locations could get more than 4 inches. Forecasters also warned of possible excessive rain and flash flooding in southern San Bernardino County through Saturday night.