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Hydropower Decline Adds to the Strain on Power Grids in Drought

/in , /by /NBC 4

After water levels at a California dam fell to historic lows this summer, the main hydropower plant it feeds was shut down. At the Hoover Dam in Nevada — one of the country’s biggest hydropower generators — production is down by 25%. If extreme drought persists, federal officials say a dam in Arizona could stop producing electricity in coming years.

Severe drought across the West drained reservoirs this year, slashing hydropower production and further stressing the region’s power grids. And as extreme weather becomes more common with climate change, grid operators are adapting to swings in hydropower generation.

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New Water Year Begins with Most of the Basin in Drought

/in , , /by /Arizona Public Mediaby Alex Hager (KUNC)

October marks the beginning of a new calendar for those who measure and manage the west’s water. The good news? Across the Colorado River basin, there’s a lot less “exceptional drought.”

The amount of land under the absolute driest designation is down about 60% in less than a year. The bad news is that more than 90% of the basin remains in some level of drought.

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California Records Its Hottest Summer Ever as Climate Change Roils Cities

/in , , /by /Los Angeles Timesby Hayley Smith

California and several other Western states endured the hottest summer on record, according to federal data released Thursday, underscoring the ways rapid climate change is unleashing unprecedented wildfires, deadly heat waves and drought conditions. In addition to California, officials said Idaho, Nevada, Oregon and Utah also set all-time heat records for the meteorological summer, spanning June through August.

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Why Water Cuts Are Coming to Arizona, Nevada, and New Mexico

/in , , /by /Bloomberg Lawby Cordie Qualle

The Bureau of Reclamation, the agency charged with water resources management for the West at the federal government level, announced unprecedented Tier 1 cuts in water deliveries from Lake Mead on the Colorado River to Arizona, Nevada, and Mexico in 2022. The Tier 1 cuts will reduce water deliveries due to historic low water levels in Lake Mead.

California deliveries are not impacted by this announcement due to senior water rights, but they could be coming if water levels continue to drop. The Colorado River watershed and most western river watersheds that feed reservoirs with snowmelt are not producing as much runoff as they have historically due to the warming atmosphere affecting snow elevations and dryer and warmer soil and air temperatures.

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Metropolitan Water District, Supplier of Most of Pasadena’s Water, Partners with Other Agencies to Conserve Water in Lake Mead

/in , , /by /Pasadena Nowby City News Service

In response to worsening drought conditions, the board of Southern California’s regional water wholesaler and other water agencies across the Southwest have announced a partnership with the federal government to fund a short-term agricultural land fallowing program in California that will conserve water on a large scale.

The partnership among the U.S. Bureau of Reclamation, the Metropolitan Water District of Southern California, Central Arizona Project, Southern Nevada Water Authority, and the Palo Verde Irrigation District is expected to help conserve up to 180,000 acre-feet of water over the next three years, amounting to about a 3-feet increase in Lake Mead’s water level.

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Megadrought Spurs First-Ever Federal Colorado River Cutbacks

/in , , /by /E & E Newsby Jeremy P. Jacobs

The Biden administration today will declare a water shortage on the Colorado River for the first time ever, triggering cutbacks in the Southwest due to a decadeslong drought that experts say is a sign of what’s to come.

Bureau of Reclamation officials will announce that water levels in the river’s main reservoirs have dropped so low they have triggered mandatory delivery reductions in Arizona and Nevada.

The announcement comes as heat waves and wildfires are scorching the West, presenting the Biden administration with another crisis. A 20-year “megadrought” in the seven-state Colorado River Basin has caused Lake Mead and Lake Powell to drop to levels not seen since they were originally filled a half-century ago.

“This drought has come on faster and harder than last time,” said Ellen Hanak, the director of the water policy center at the Public Policy Institute of California, referring to the last Golden State drought that ended in 2016. “We are in year two, but we’re in as bad a shape as year three of what was a record drought last time.”

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Water Shortage Announcement Expected Monday for Lake Mead

/in , , /by /3News (Las Vegas)by Jeff Gillan

Federal authorities are expected to declare a water shortage for Lake Mead Monday, which would trim Nevada’s allocation of water in 2022.

A shortage gets triggered if the lake is expected to sit below 1,075 feet on January 1, 2022. As of Wednesday morning, the lake sits at 1,067.93 feet. The shortage has been anticipated as Lake Mead’s water level continues to drop.

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California Water: 10 Charts and Maps That Explain the State’s Historic Drought

/in , , /by /Mercury Newsby Paul Rogers

A historic drought is spreading across California and much of the American West. How bad is it? Which places are most affected? What does it mean for our water supply and wildfire risk?

These 10 maps and charts tell the story.

Over the past two years, rain and snow totals in Northern California, Nevada, Utah and other parts of the West have been less than 50% of average. As this map from the Western Regional Climate Center in Reno shows, the drought is severe and widespread.

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Lake Powell Water Levels Hit a Record Low and Continue to Decline

/in , , /by /AZ Centralby Lindsey Botts

Water levels at Lake Powell have dropped to their lowest level since the huge reservoir was filled more than 50 years ago, another sign of the ongoing drought’s toll on the Colorado River. The reservoir fell to 3,555.09 feet above sea level Friday and continued to drop through the weekend, according to the U.S. Bureau of Reclamation. As of late Sunday, water levels stood at 3,554.72 feet. The previous low mark, set in 2005, was 3,555.10 feet. Friday’s low water mark comes barely a month after Lake Mead, the largest reservoir on the river, reached a record low. Federal officials are expected next month to declare a water shortage on the Colorado River, triggering cutbacks next year in Arizona and Nevada.

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Climate Change Batters the West Before Summer Even Begins

/in , , /by /The New York Timesby Brad Plumer, Jack Healy, Winston Choi-Schagrin and Henry Fountain

A heat dome is baking Arizona and Nevada, where temperatures have soared past 115 degrees this week and doctors are warning that people can get third-degree burns from the sizzling asphalt.

At Lake Mead, which supplies water for 25 million people in three southwestern states and Mexico, water levels have plunged to their lowest point since the reservoir was filled in the 1930s. In California, farmers are abandoning their thirstiest crops to save others, and communities are debating whether to ration tap water.

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