Lake Powell drops to 23% capacity

Lake Powell is a reservoir story, but the stakes are bigger than one lake. It is the giant savings account behind Glen Canyon Dam, and when it drops fast enough, the problem turns from ugly shoreline photos to water delivery and hydropower risk. That is where things are heading now. In early May 2026, Lake Powell is sitting at roughly 23% of full pool, after one of the worst snow and runoff seasons the Colorado River Basin has seen in years. (lakepowell.water-data.com) ### Is the “23% full” number real? Yes — basically. A widely used Lake Powell tracker showed the reservoir at 23.09% of full pool on May 3, with surface elevation near 3,526 feet. Federal Reclamation data from the end of March had Powell at 5.72 million acre-feet, or 25% of live capacity, and the lake has kept sliding since then. The exact percentage depends(lakepowell.water-data.com)ut the broad point is the same: the reservoir is very low and still vulnerable. (lakepowell.water-data.com) ### Why did it fall this far? The simple answer is runoff. Lake Powell depends on snowmelt from the Upper Colorado Basin, and this year that runoff came in weak. Reclamation said March unregulated inflow was just 350,000 acre-feet — 59% of average — and its April forecast put that month at 0.55 million acre-feet, or 61% of average. Back in February, the agen(lakepowell.water-data.com)million acre-feet in one month and was about 3.0 million acre-feet below what officials expected in November. (usbr.gov) ### Why does 23% matter so much? Because Powell is not just a bucket of water. It is the reservoir that lets Glen Canyon Dam keep sending water downstream and keep making electricity. In February, Reclamation said its most probable projection showed Powell could hit 3,490 feet in December 2026 — the minimum power pool — and then 3,476 feet in March 2027, which w(usbr.gov)w those levels, the dam loses operating flexibility and eventually hydropower. (usbr.gov) ### Didn’t managers already try to hold water back? They did. Reclamation changed Glen Canyon Dam releases starting December 1, 2025, to temporarily keep an extra 0.598 million acre-feet in Powell through April 2026. The April 24-Month Study also said releases this year may end up below the standard 7.48 million acre-feet if that is needed to avoid Powell droppi(usbr.gov)e no longer treating the operating plan as fixed. They are actively bending it to protect the reservoir. (usbr.gov) ### What else are they doing? They are pulling another emergency lever upstream. Reclamation says drought-response releases from Flaming Gorge began on April 23, 2026, to support Lake Powell, after the Upper Basin states asked for immediate action as conditions worsened. That is not a normal spring move. It is a sign that federal and state water managers think the(usbr.gov) from one major reservoir to prop up another. (usbr.gov) ### What does this mean for visitors? Lake Powell is still open, but lower water changes how people use it. Glen Canyon National Recreation Area said in March that it was relocating Bullfrog marina services toward deeper water near Halls Crossing for the 2026 season. The park is also working on a longer-term Stanton Creek ramp because existing access gets(usbr.gov)ling: Bullfrog North is operable for smaller motorized boats at 3,525 feet or above — almost exactly where the lake is now. (home.nps.gov) ### Is this just a Lake Powell problem? No — it is a Colorado River system problem. Reclamation said in April that total Colorado River system storage had fallen to about 36% of capacity, with record-low snowpack and extreme spring heat making conditions worse. Powell gets the attention because it is the upper basin’s giant balancing reservoir, but the dee(home.nps.gov). (usbr.gov) ### Bottom line? The 23% figure matters because it marks a shift from chronic drought to active triage. Officials are cutting releases, moving marinas, and sending water from Flaming Gorge just to keep Lake Powell away from critical operating thresholds. If spring runoff does not improve fast, this summer’s shoreline story could turn into a dam-operations story. (home.nps.gov)