Lake Powell water levels reach all-time low amid long-term drought

Aug. 16 (UPI) — Lake Powell, a vital man-made water reservoir on the Colorado River, has fallen to its lowest level on record as the U.S. West endures a severe, long-lasting drought, official statistics show.

The lake’s levels fell to 3519.91 feet on Saturday — low enough to break the record of 3,519.92 feet set in April 2023, according to a reading published Sunday by the Bureau of Reclamation.

Federal officials say the effects of long-term drought had reduced Colorado River Basin system storage to about 36% of capacity as of April. This was due to a combination of the lowest snowpack on record last winter and record-breaking heat in March, which intensified drought conditions across the river basin.

The situation has set off widespread concerns over elevated risks to the essential water and power infrastructure that supplies more than 40 million people across the West.

The lake, which spans Utah and Arizona, is a reservoir created by the Glen Canyon Dam in Page, Ariz.

The Bureau of Reclamation in April predicted Lake Powell’s water year minimum probable inflow at just 2.78 million acre-feet — only 29% of historical average and one of the lowest on record.

It also warned lake could decline to below 3,490 feet — the minimum power pool level — by this summer without major intervention.

If Glen Canyon Dam declines below that level, water releases would be restricted, creating “uncertainty for users, downstream impacts, instability in regional power and water supplies, and a reduction in power generation.”

Another vital reservoir in the Colorado River Basin, Lake Mead, is also currently at its lowest level since it was created in the 1930s.

The Bureau of Reclamation and the Department of the Interior remain “committed to reducing the collective risk of both Lake Powell and Lake Mead falling below critical elevations to protect critical infrastructure to continue to meet the water and hydropower needs of the basin,” a spokesman told CNN on Sunday.