Storm creates chaos in California with flooding, mudslides

SAUSALITO, Calif. — Waves of heavy rain pounded California on Thursday, trapping people in floodwaters, washing away a mountain highway, triggering a mudslide that destroyed homes and forcing residents to flee communities scorched by wildfires last year.

At least two people died as the powerful system swept in from the Pacific Ocean and unleashed damaging rain, snow and wind.

The system was moving across the U.S. West into Wyoming and Colorado after walloping Northern California and southern Oregon a day earlier.

The National Weather Service reported staggering rainfall amounts across California, including more than 9.4 inches (24 centimetres) over 48 hours at one location in the San Bernardino Mountains east of Los Angeles.

A woman pulled from rising water in a low-lying area between those mountains and LA had a heart attack and died at a hospital, said Capt. Ryan Rolston with the Corona Fire Department. The unidentified woman was one of nine people and three dogs rescued in a flood control channel where homeless people camp, Rolston said.

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In Escondido, northeast of San Diego, firefighters pulled the body of a man from a concrete-lined waterway. Witnesses told authorities the man had been paddle-boarding in the surging waters.

North of San Francisco, a mudslide barrelled over cars, uprooted trees and sent a home sliding down a hill and smashing into another house in Sausalito.

A woman was rescued from the splintered wreckage with only cuts and bruises. Susan Gordon was buried under a tree and mud for two hours while crews dug her out, her son wrote on an online fundraising page.

Chris Parkman said it’s been years since a storm so powerful has hit the hillside community, where at least 50 properties were evacuated.

“We don’t see the rain most of the year, so most of the year you feel safe. But when the big storms come, your safety factor is gone,” he said.

A deluge southeast of Los Angeles washed away a section of a two-lane mountain highway. Photos by the state Department of Transportation showed about 75 feet (23 metres) of pavement completely collapsed along State Route 243 near the remote community of Idyllwild.

“We’re basically stranded right now,” said resident Gary Agner, adding that several other roads were closed because of flooding and debris. “I’m glad I went to the grocery store yesterday.”

The risk of flooding led officials to order people out of areas burned bare by a summer wildfire in the Santa Ana Mountains, with flash flood warnings blanketing a huge swath east and south of Los Angeles.

Authorities also told parts of artsy Laguna Beach to evacuate, while the desert resort city of Palm Springs urged residents to stay where they were because of flooded streets. Flood advisories extended to Arizona.

Weather was so severe that the Hollywood Walk of Fame had to postpone the dedication of a sidewalk star honouring the band Aerosmith. Knott’s Berry Farm and Six Flags Magic Mountain theme parks closed.

Trouble also persisted in saturated Northern California, where thousands of people lost power and flooding was possible. Downtown San Francisco saw more than 1.75 inches (4.4 centimetres) of rain over 24 hours.

A flooded creek led authorities to urge about 300 residents to leave a community some 20 miles (32 kilometres) west of Paradise, a town destroyed last year by the nation’s deadliest wildfire in a century.

The storm followed more than a week of severe weather in the Pacific Northwest and was the latest in a series of storms that has all but eliminated drought-level dryness in California this winter. It’s fueled by an atmospheric river — a plume of moisture stretching across the Pacific Ocean nearly to Hawaii.

Nearly 37 per cent of California had no level of drought or abnormal dryness, the U.S. Drought Monitor reported Thursday. About 10.5 per cent of the state was in moderate drought, just over 1.6 per cent was in severe drought. The remainder was in the abnormally dry category. The numbers reflect data gathered up to Tuesday.

Atmospheric rivers are long bands of water vapour that form over an ocean and flow through the sky. Formed by winds associated with storms, they occur globally but are especially significant on the West Coast.

Even before the height of the storm, mandatory evacuations were ordered near the wildfire area in the Santa Ana Mountains where officials said there was a high risk of debris flows.

Tim Suber chose not to leave his hillside neighbourhood in Lake Elsinore. He said Thursday that he’s lost count of how many times his family has been evacuated between last summer’s devastating wildfire and this winter’s storms.

The rain was so heavy that “it sounds like a hundred bowling balls a minute are going down the creek” behind his house, Suber said. A neighbour had mud in his pool, but so far the area hadn’t lost power and culverts and washes were handling the runoff.

The storm delayed flights destined for San Francisco International Airport, closed sections of several key highways, including Highway 1 on the Central Coast, Interstate 5 north of Sacramento, and U.S. 395 in the snowy eastern Sierra Nevada.

Wintry weather closed Interstate 80 across much of Wyoming and sections of at least four other highways. Multiple avalanches disrupted highway traffic in northwestern Montana near the Idaho border.

In Colorado, high winds shattered windows and downed power poles, leaving thousands in Colorado Springs without power.

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Associated Press writers Olga Rodriguez in San Francisco and Christopher Weber and Amanda Lee Myers in Los Angeles contributed to this report.

Terence Chea And John Antczak, The Associated Press