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LOS ANGELES (AP) — A California dam could fail during an extreme storm and send water flooding into Mojave Desert communities that are home to about 300,000 people, authorities said Friday.The U.S. Army Corps of Engineers announced that it has changed its risk characterization of the Mojave River Dam from low to high urgency of action. The Corps says it estimates that only 16,000 people in those communities would be affected by flooding.The earthen dam was built in the 1970s near the San Bernardino Mountains northeast of Los Angeles. It was designed for flood control and is usually dry.The 200-foot-high (61-meter-high) dam has never breached but an assessment last year found that during an extreme storm, water could flow over the top and erode the dam.That could threaten Apple Valley, Hesperia, Victorville, Barstow and even the tiny town of Baker, more than 140 miles (225.3 kilometers) downstream.The chances of such a storm are only about 1-in-10,000, said Luciano Vera, spokesman for the Los Angeles district of the Army Corps of Engineers.However, "all it takes is one event ... one Katrina, one Hurricane Harvey," Vera said. "These storms are happening more and more, so this is our way of looking toward the future."The corps has been working with local communities on emergency preparation plans and will also begin a study on upgrading and strengthening the dam, Vera said.Since 2005's devastating Katrina, the corps has been looking at all of its 700 dams nationwide.In May, the corps upgraded the risk characterization of Prado Dam to high urgency. That dam is located on the Santa Ana River in the Los Angeles suburb of Corona. Dozens of Southern California cities with about 1.4 million people live downstream.Work to improve the dam has been under way since 2002 to increase the amount of floodwaters and sediment it can store.In 2017, some 200,000 people in three Sierra Nevada counties were forced to evacuate after spillways at the Oroville Dam crumbled and fell away during heavy rains.Flooding didn't happen, however, and the dam has since been repaired. 2092

LOS ANGELES (AP) — A new rule approved by the California Horse Racing Board means jockeys competing in the state won’t be allowed to strike a horse more than six times during a race and then only in an underhanded position. The rule would allow no more than two strikes in succession using whips that must meet new board standards to soften the blows. The board voted 4-2 to approve the rule. Retired Hall of Fame jockey Alex Solis was one of the dissenters. 466

LOS ANGELES (AP) — Actor Niecy Nash surprised fans with her weekend wedding to singer Jessica Betts. Nash and Betts posted Instagram photos Monday of their outdoor marriage ceremony. The actress also posted pictures on her Twitter account. 247

LONDON — Britain's health secretary says London and it surrounding areas will be placed under the highest level of coronavirus restrictions beginning Wednesday as infections rise rapidly in the capital. Matt Hancock said Monday that the government must take swift action after seeing “very sharp, exponential rises” in Greater London and nearby areas. Under Tier 3 restrictions, the toughest level, people can’t socialize indoors and bars, pubs and restaurants must close except for takeout.He said in some areas cases are doubling every seven days. Hancock told lawmakers that officials have identified “a new variant of coronavirus which may be associated with the faster spread in the south of England.” He said so far, about 1,000 cases of the variant have been identified in England, and they have alerted the World Health Organization. At this time, experts in the UK say it does not appear that the new variant of coronavirus is more transmissible, or more infectious or dangerous. "Huge efforts are ongoing at characterising the variant and understanding its emergence. It is important to keep a calm and rational perspective on the strain as this is normal virus evolution and we expect new variants to come and go and emerge over time," Professor Alan McNally, an expert at the University of Birmingham, told the BBC.The World Health Organization is among those studying the new virus strain, which has been identified in other countries in recent months. 1474

LOS ANGELES (AP) — More than 325,000 doses of a COVID-19 vaccine are on their way to California on Sunday amid record-setting case numbers and shrinking intensive care unit capacity. The first shipments of the Pfizer vaccine left Michigan early Sunday. States will get vaccines based on their adult population and additional shipments are coming this week.In California, counties will have specific allotments that will be distributed to hospitals determined by state health officials to have adequate storage capacity, serve a high-risk health care population and have the ability to vaccinate people quickly. Priority will be to inoculate health care workers. 669