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500 Mudslides, Flooded Communities, Broken Bridges: California Faces Long, Costly Storm Recovery

A pier in Santa Cruz split in half. Extensive flooding in Soquel Village, Capitola and Planada. Vital bridges badly battered or closed. More than 500 reported mudslides across California in the last few weeks, including some that damaged homes and cars in L.A. hillside communities.

The atmospheric river storms that pummeled California for weeks inflicted “extensive” damage to as many as 40 of the state’s 58 counties, and total repairs could reach as much as $1 billion, according to authorities.

Storms Force California to Look Harder at Capturing Rainfall to Ease Drought

After the driest three years in the state’s modern history, California suddenly has a different problem on its hands: too much water.

An ongoing series of storms drenching the state has forced officials to take measures unfathomable just a month ago, like releasing excess water from reservoirs and pumping surging river flows into storage.

In One of the Snowiest Places in the West, A Scientist Hunts for Clues to the Sierra Snowpack’s Future

Growing up in the shadow of the Rocky Mountains, Andrew Schwartz never missed an opportunity to play in – or study – a Colorado snowstorm. During major blizzards, he would traipse out into the icy wind and heavy drifts of snow pretending to be a scientist researching in Antarctica. Decades later, still armed with an obsession for extreme weather, Schwartz has landed in one of the snowiest places in the West, leading a research lab whose mission is to give California water managers instant information on the depth and quality of snow draping the slopes of the Sierra Nevada — snow that is crucial for the state’s water supply.

Water Managers Across Drought-Stricken West Agree on One Thing: ‘This is Going to be Painful’

Water authorities in the Western U.S. don’t have a crystal ball, but rapidly receding reservoirs uncovering sunken boats and other debris lost in their depths decades ago give a clear view of the hard choices ahead.

If western states do not agree on a plan to safeguard the Colorado River — the source of the region’s vitality — there won’t be enough water for anyone.

More Rain, Snow in California From Ninth in Series of Storms

The ninth atmospheric river in a three-week series of major winter storms was churning through California on Monday, leaving mountain driving dangerous and the flooding risk high near swollen rivers even as the sun came out in some areas.

Heavy snow fell across the Sierra Nevada and the National Weather Service discouraged travel. Interstate 80, a key highway from the San Francisco Bay Area to Lake Tahoe ski resorts, reopened with chain requirements after periodic weekend closures because of whiteout conditions.

Opinion: Storms Tell California to Upgrade its Plumbing

The rain and snow storms that have pummeled California for weeks have taken nearly two dozen lives and caused billions of dollars in damages to public and private property.

The flip side, however, is that they dropped immense amounts of water on a state that has suffered through severe drought for several years. At one point this month, an astonishing 160,000 cubic feet of water – 1.2 million gallons – was flowing through the Sacramento-San Joaquin Delta every second. That’s enough water to fill a reservoir the size of Folsom Lake, about 1 million acre-feet, in three days and doesn’t count water falling on other regions, such as Southern California.

California Death Toll Reaches 20 as Last of Atmospheric River Storms Finally Ends

The parade of atmospheric rivers that pounded California for three weeks finally faded on Monday, enabling the state to begin lengthy repairs to roads and levees as the White House announced President Biden planned to survey the damage.

Why Amospheric Rivers Could Become More Frequent as World Transitions out of La Niña

As critical areas of the Pacific Ocean warm and the world marches out of a La Niña towards neutral status, North America might be in store for changes in weather patterns not seen in several years.

A rare triple-dip La Niña has been in place since 2020 and was one of the main driving forces behind megadroughts, severe weather outbreaks and hurricanes.

Director Jim Madaffer Elected Vice Chair of the Colorado River Board of California

San Diego County Water Authority Board Member Jim Madaffer has been elected vice chair of the Colorado River Board of California. The CRB represents California in river management discussions with other Basin states, federal agencies, tribes, and Mexico.

Madaffer, the Water Authority’s CRB representative since 2019, will serve a four-year term as vice chair following his election on January 11 during the CRB meeting in Ontario, Calif. He will serve alongside Imperial Irrigation District Board Vice President JB Hamby, who was elected chair.

California Suddenly Has So Much Snow. But Even This Extraordinary Bounty Isn’t Enough

At the UC Berkeley Central Sierra Snow Laboratory in Donner Pass on Wednesday, snow was piled so high that lead scientist Andrew Schwartz no longer needed stairs to exit the second floor.

“We just walk directly out onto the snow!” Schwartz said. The nearly 11 feet of snow surrounding the lab was the deepest he’d seen so far this year.