California

An earthquake struck the Los Angeles area, shaking buildings and prompting residents to report the tremor widely online. No immediate details were available on the quake's magnitude or whether it caused damage or injuries. People across Southern California shared their experiences of the shaking as it happened.

California health officials have issued a warning about possible measles exposure across six counties, urging residents to check whether they may have been exposed and to confirm their vaccination status. The alert was reported by NPR and is drawing attention as health authorities work to contain any potential spread of the highly contagious virus.

California Governor Gavin Newsom has signed a bill prohibiting brokers from booking blocks of tee times at public golf courses and reselling them at a markup. The practice has frustrated golfers who struggle to secure affordable tee times at popular municipal courses, prompting lawmakers to act against commercialized scalping of public recreation slots.

Hurricane Polo is bearing down on Mexico's Baja California Peninsula, with authorities warning of storm surge and flooding as residents prepare for landfall. Meanwhile, Hurricane Nolo continues to threaten Hawaii, keeping Pacific communities on alert. Two simultaneous Pacific storms are drawing attention as both Mexico and Hawaii face potential storm damage and emergency responses.

Mexico's Baja California peninsula is preparing for the arrival of major Hurricane Polo, with residents and authorities bracing for strong winds, heavy rain and coastal damage. At the same time, Hurricane Nolo remains a threat to Hawaii in the Pacific. Two simultaneous Pacific storms have drawn attention to the region's hurricane activity.

California is testing and evaluating solar panels built over irrigation canals, an approach that generates renewable energy while shading water and reducing evaporation. Early lessons from pilot projects are offering insight into how the technology performs at scale, and the findings are drawing attention as the state weighs ways to expand clean energy and conserve water at the same time.

Scientists and weather watchers are tracking a vast, slow-moving Kelvin wave—a planetary-scale ocean or atmospheric pattern—that is heading toward California. The development is drawing attention because such waves can influence coastal conditions and extreme weather, and concern is mounting over what impact it could bring to the US West Coast.

A raw milk cheese produced in Northern California has been recalled as health officials respond to an E. coli outbreak. The Sacramento Bee reported the recall, linking the product to cases of the bacterial infection. Consumers are being warned to check for the affected cheese, and the recall raises renewed concerns about the safety of raw milk dairy products.

California has declared a state of emergency for the entire state ahead of a forecast strong El Niño, which is expected to bring heavy rain, flooding and severe storms in the coming months. The move allows state agencies to pre-position resources and respond quickly as the weather pattern intensifies.

Attention is turning to a slow-moving, planetary-scale ocean Kelvin wave that is travelling toward the California coast. Such waves move warm water along the equator and can influence weather patterns, raising concerns about possible effects on California's coastal conditions and climate in the coming months.

Donald Trump is escalating a confrontation with California over the state's role as the national leader on climate policy, setting up a battle over emissions rules and the state's authority to set its own standards. The outcome is expected to shape how far states can go on climate action and how far a president can push back.

Hurricane Polo is being tracked as its projected path raises questions about possible impacts on Southern California, including moisture, surf and rainfall from the storm's remnants. Local forecasters are watching the trajectory closely to determine whether the region will see direct effects or only offshore swells and increased humidity in the coming days.

Tropical Storm Nolo is approaching Hawaii, marking the islands' third major storm in two months. In the San Francisco Bay Area, residents are reaching out to check on family members in Hawaii as the storm nears. The repeated storms have put island communities and their mainland relatives on edge, with local news in California following the situation closely.

A slow-moving, planetary-scale kelvin wave of warm ocean water is heading toward the US West Coast, raising concern in California. Such waves along the equatorial Pacific are tied to the El Niño-Southern Oscillation and can shift weather patterns, potentially bringing heavier rains, coastal impacts and extreme weather to the region as scientists and residents watch its progress.

Southern California is preparing for the effects of Hurricane Polo, with local news coverage highlighting the storm's expected fallout across the region. Residents and officials are watching forecasts closely as the hurricane approaches the Pacific coast, with possible rain, wind and coastal impacts in store.

A series of East Pacific hurricanes is expected to steer away from California, sparing the state their direct effects. Their moisture, however, should bring heavy rain to the interior Southwest, potentially triggering flash flooding in desert areas. Meteorologists also flag a major, long-duration autumn heatwave building afterwards across the western United States, extending unseasonably hot conditions into the region.

A flood watch is in effect for the next three days across the Four Corners region, most of New Mexico, and northeast Arizona. Moisture from the remnants of Hurricane Polo is moving in overnight, while an Aleutian Low spinning off the Southern California coast is pumping additional moisture into the area, raising the risk of significant flooding across the desert Southwest.

Environmental activists gathered at West Beach in Santa Barbara, California, for a rally aimed at defending the local coastline. Organizers and participants voiced concerns over threats to the coastal environment, drawing community attention to protection of the shoreline. The event adds to ongoing environmental advocacy in the region.

Two mountain marmots were found in September in San Francisco and Antioch, California, far from their usual alpine habitat, apparently after hitching rides on vehicles. Wildlife officials are working to determine how the animals traveled to the Bay Area. The unusual sightings have drawn attention because marmots are rarely seen so close to urban centers.