"PAGE, Ariz. — The first sign of serious trouble for the drought-stricken American Southwest could be a whirlpool.

It could happen if the surface of Lake Powell, a man-made reservoir along the Colorado River that’s already a quarter of its former size, drops another 38 feet down the concrete face of the 710-foot Glen Canyon Dam here. At that point, the surface would be approaching the tops of eight underwater openings that allow river water to pass through the hydroelectric dam.

The normally placid Lake Powell, the nation’s second-largest reservoir, could suddenly transform into something resembling a funnel, with water circling the openings, the dam’s operators say."

Joshua Partlow reports for the Washington Post December 1, 2022. [2]