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Floods bring rare relief to U.S. Southwest reservoirs as Lake Powell rises 20 feet

the gist

Lake Powell, the huge reservoir on the Colorado River on the Utah-Arizona border, rose about 20 feet after heavy storms in late October and early November. The rain sent torrents through normally dry or small creeks, flooding local communities, and the runoff brought rare relief to reservoirs across the US Southwest. Lake Powell and Lake Mead supply water and hydropower to millions of people and farms, and both have been badly depleted by two decades of drought and overuse. A rise of 20 feet is welcome but small compared with the long-term deficit, and a few wet weeks cannot fix a basin where use has long exceeded supply.

so what

The Colorado River supplies about 40 million people, and the states are negotiating new rules to share it, as the current operating guidelines expire at the end of 2026. A single storm helps the reservoirs, but it does not solve the shortage.

fun fact

Lake Powell was created by Glen Canyon Dam, completed in 1963.

Illustrative photo · Copernicus Sentinel-2, ESA, CC BY-SA 3.0 igo, via Wikimedia Commons