Lake Powell is entering the hottest part of the summer at its emptiest level ever as this winter’s refill failed. Federal projections warn the reservoir could fall to “minimum power pool” next spring—risking Glen Canyon Dam power generation—and raise the remot
Lake Powell is already sliding into the hottest months at its lowest level on record—and this time, the usual spring rescue never came.
The massive Colorado River reservoir that helps generate electricity across the West has begun this summer at a level officials describe as the emptiest it has ever been entering the hottest part of the year. Federal projections released this month show the lake is headed toward “minimum power pool” next spring. If it drops below that threshold, the Glen Canyon Dam would stop generating electricity.
In a June 15 prediction, the federal Bureau of Reclamation wrote that the likely outcome “is not a reflection of recent drought response actions,” but instead a reminder that the Colorado River “remains vulnerable.”
The risk isn’t only about lights going out. If Lake Powell falls even further. it could create an environmental catastrophe by stopping the Colorado River from flowing through the Grand Canyon—a condition known as “dead pool.” Experts generally consider that scenario unlikely because federal managers would likely create new outlets in the dam before it happens.
Still, the numbers are unforgiving. The amount of water in Lake Powell has been slowly shrinking as long-term climate change pushes the West toward warmer and drier conditions. Today, the lake is 23.28% full. The last time it was completely full was in 1983.
The spring refill that usually keeps the system functional never arrived this year. In past years. Lake Powell’s levels have briefly dropped lower—but those low points occurred in spring. before melting snow refilled the reservoir. This year’s winter was catastrophically dry. and predictions show the lake will continue dropping until late next spring. when the coming winter’s snow would begin to melt.
Federal and state water managers have already been taking steps to slow the decline. They have been drawing water from other reservoirs in Colorado and Wyoming. But even with those releases, officials’ forecasts show Lake Powell’s level continuing to fall.
Planning for low water is becoming practical work, not just policy. Lake managers have begun extending boat ramps in preparation for ongoing low levels. Workers recently floated the entire Bullfrog Marina across the lake into deeper water at Halls Crossing in Utah.
For residents and businesses tied to Lake Powell’s summer crowds, the consequences are already visible. In Page. Arizona. the small city next to the dam. tourism has taken a hit after news coverage of the lake levels. City spokesman Adam Geller said it’s unclear how much of the damage is directly attributable to the lake level. given recent high gas prices and a slowdown in international tourism. Even so, he said city hotel revenue has dropped 6% compared to this time last year.
Page was built as the staging area for the dam’s construction in the 1960s. and its fortunes remain closely linked to the lake and the Colorado River. Geller pointed to the connection to major attractions including Antelope Canyon and Horseshoe Bend. He also said the lake still has more than 1. 000 miles of shoreline to explore. often accessed through houseboats. water skiing. kayaking. and the scenic side canyons that lead to the Rainbow Bridge rock arch.
Geller framed the moment as one more test for a community used to improvising. “This community has a great track record of adapting,” he said. “The dam is a story of resilience in itself. It was never built to withstand a drought like this…”
Municipal planners are also preparing for the practical reality of lower water. Geller said municipal workers are developing a new low-level drinking water connection to supply the city’s approximately 7,300 residents, as well as hotels, businesses, and the golf course as the lake level falls.
The tension in the Colorado River system goes beyond Utah and Arizona. The states that share the river—Arizona. California. Colorado. Nevada. New Mexico. Utah. and Wyoming—manage the resource together. along with some Native American tribes. and the stakes are rising as each drop in Lake Powell tightens the downstream math.
California gets the lion’s share of water from the river even during dry years. and the imbalance has long driven conflict. On April 9. governors of Colorado. New Mexico. Utah. and Wyoming warned their downstream counterparts that using water from their smaller reservoirs to bolster Lake Powell risks jobs and tourism in their own states.
Those governors, representing the “Upper Basin” states, have long argued that farmers in California and Arizona should use less water—even if they are legally entitled to it.
On the other side of the reservoir. federal water managers have begun partially draining reservoirs. including Wyoming’s Flaming Gorge. to keep enough water in Lake Powell to make electricity. Water leaving Lake Powell is captured in Lake Mead outside Las Vegas. where it provides electricity. irrigation. and drinking water for tens of millions of people. including California’s agricultural industry.
The Upper Basin governors also urged restraint in their April 9 message, arguing that appropriate storage helps communities survive dry years. They wrote: “Years like this one remind us that appropriate water storage helps us survive the dry years. and that we must be prepared not only for this year but future dry years. as well as average years.” They added: “We recognize the need to live within the available supply and expect other communities to do so as well.”.
California and Arizona have faced growing pressure from some conservation groups to drastically change crops grown with Colorado River water, especially because farmers have historically relied on large amounts of water for thirsty crops like alfalfa in desert regions.
Federal efforts under the Biden administration have also attempted to blunt the impact of shortages. Federal taxpayers paid farmers billions of dollars to stop planting crops, but the effort is widely viewed as a short-term fix too expensive to maintain indefinitely.
Over the past 25 years, California state officials say the average amount of water in the Colorado River has been 20% lower than it was from 1900 to 2000.
At the same time, the physical system requires constant outflows. A certain amount of water must constantly flow out of both Lake Powell and Lake Mead so they can produce power for millions of households and businesses. And Mexico and Native American tribes also have water-use rights and a say in management decisions.
So the question isn’t only whether the drought is severe—it’s whether the states can agree fast enough on what to do next.
A major set of proposals has emerged. ranging from water conservation and changes to crops and lawns. to engineering ideas that include piping water from the Mississippi River into Arizona. hauling icebergs from polar regions. and building nuclear-powered desalination plants off the California coast.
Several environmental groups have gone further, proposing removing or bypassing the Glen Canyon Dam, draining what’s left into Lake Mead, and implementing stricter water conservation measures.
Aaron Weiss, executive director of the nonpartisan Center for Western Priorities, said the window for slow decisions has narrowed. The center advocates for increased land and water conservation across the West.
“Now we’re at the point where we’ve seen it coming for 20 years and so now it’s going to be both really hard and really urgent,” Weiss said. “Whatever the solutions are, they’re going to have to happen rapidly.”
For now, hope is pinned on weather. Page’s city leaders said they are counting on the forecast El Niño to deliver a wet fall and a snowy winter. which could bump up Lake Powell’s level and buy time for longer-term solutions. Geller said, “If we get that snowpack, maybe we’re out of trouble for a little bit.”.
But even that hope runs into the limits of physics and infrastructure. Federal projections already point toward a drop to minimum power pool next spring. and the uncertainty of what happens if the lake falls further hangs over an entire region that has depended on the Colorado River for more than a century—powering jobs. farming. and water supplies across seven states and beyond.
Lake Powell Glen Canyon Dam Colorado River dead pool minimum power pool Bureau of Reclamation drought El Niño water conservation Flaming Gorge Lake Mead Colorado River Compact