California gets brief lull after damaging ‘bomb cyclone’



CAPITOLA, Calif. — California weather calmed Friday but the lull was expected to be brief as more Pacific storms lined up to blast into the state, where successive powerful weather systems have knocked out power to thousands, battered the coastline, flooded streets, toppled trees and caused at least six deaths.

Remnant showers from the latest storm, a “bomb cyclone,” fell around the state and dangerous surf pounded the coast despite declining wave heights, while some areas enjoyed sunshine. A Southern California pier was damaged by high surf and winds overnight and will remain closed until it is repaired, officials said. Streets flooded in low-lying beach cities.

The next round of severe weather was predicted to arrive in Northern California on Friday night and spread south into the central region during the weekend, increasing flooding concerns due to already saturated soil. Heavy snow was forecast for the Sierra Nevada.

“A very active weather pattern across the Pacific Ocean will continue to push energetic and fast-moving low pressure systems toward the West Coast,” the National Weather Service said. “California continues to take the brunt of the heavy precipitation and strong winds associated with these systems as we head into the first full weekend of 2023.”

During the weekend, “the next moisture-laden Pacific cyclone is forecast to approach California with the next onslaught of heavy rain,” the service said.

The storms are atmospheric rivers, long plumes of moisture stretching far out into the Pacific, and capable of dropping staggering amounts of rain and snow.

Downtown San Francisco had its wettest 10-day period since 1871 between Dec. 26 and Jan. 4 when 10.33 inches (26.24 centimeters) of rain fell. The all-time 10-day record was 14.37 inches (36.5 cm) in January 1862.

The storms have also been piling up much-needed snow in the drought-stricken state’s mountains, where the snowpack supplies about a third of California’s water supply.

“It has been a deep week with almost 5 FEET of snow (57.9 inches, 147 cm) falling in the last 7 days!” the UC Berkeley Central Sierra Snow Lab tweeted Friday.

The statewide snowpack was 191% of normal to date and 76% of the April 1 average, which is usually the peak, according to the California Department of Water Resources.

Storms have been arriving in California since early November. A powerful New Year’s weekend storm caused extensive flooding in Northern California’s Sacramento County and four deaths. It undermined a massive oak tree that fell Monday and crushed a nursery school in Marin County. The school was empty at the time.

That storm was followed on Wednesday and Thursday by a “bomb cyclone,” a shorthand reference to a storm intensified by a rapid plunge in air pressure through a process called bombogenesis.

Two deaths were reported, including a 2-year-old boy killed when a redwood fell on a mobile home. The seaside village of Capitola in Santa Cruz County about 60 miles (100 kilometers) south of San Francisco suffered possibly the worst damage as waves that were forecast to top 25 feet (7.6 meters) crashed into homes and restaurants at the mouth of Soquel Creek and knocked out a section of its historic wooden pier.



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