Lake Powell โ the massive Colorado River reservoir that produces power for millions of homes across the West โ is the emptiest it has ever been entering the hottest part of the summer. And the worst is still to come.
Although the lake's levels have briefly fallen lower in years past, those low-water levels came in the spring, before melting snow refilled it. This year, that refill never happened.
As a result, Lake Powell will next spring fall to "minimum power pool," according to a newly released federal projection. If the water levels fall below that, the Glen Canyon Dam would stop generating electricity.
"This outcome is not a reflection of recent drought response actions, but rather a clear reminder that the Colorado River remains vulnerable," the federal Bureau of Reclamation wrote of its June 15 prediction.
If the water level falls even further, it could create environmental catastrophe by stopping the Colorado River flowing through the Grand Canyon, a point known as "dead pool." That is generally considered by experts to be an unlikely scenario because federal managers would likely create new outlets in the dam before it happens.
The amount of water in the reservoir has slowly been dropping as long-term climate change creates a warmer and drier West. Today, the lake is 23.28% full. It was last completely full in 1983.