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Long-term water level decline continued, forcing an emergency release of water from the Flaming Gorge Reservoir in July 2021. [10] and by April 22, 2022, Lake Powell was at 3,522.24 feet (1,073.58 m) in elevation – just 22.88% of capacity. This marks the lowest water level for Lake Powell since it was filled in 1963. [11]
Water managers are tracking the elevations of Lake Powell and Lake Mead, two of the largest reservoirs in the U.S., as a historic megadrought made worse by climate change grips Western states.
Lake Powell is part of the Glen Canyon National Recreation Area, which extends for more than 300 kilometers (186 miles) along the shoreline and side canyons. The primary intended use of Lake Powell’s water is support for agriculture, with a small portion allocated to urban use in Arizona, Nevada, and California.
Lake Powell's fall to below 3,525 feet (1,075 meters) puts it at its lowest level since the lake filled after the federal government dammed the Colorado River at Glen Canyon more than a half ...
In April 2020, snowpack was at 50% of average levels for April. In April 2021, the figure was 62%. By April 2022, snowpack was at just 35% of average levels.
While past satellite missions like the Jason series altimeters (TOPEX/Poseidon, Jason-1, Jason-2, Jason-3) have provided variation in river and lake water surface elevations at select locations, SWOT will provide the first truly global observations of changing water levels, stream slopes, and inundation extents in rivers, lakes, and floodplains ...
The particularly dry spell between 2000 and 2004 brought Lake Powell to just a third of capacity in 2005, the lowest level on record since initial filling in 1969. [272] In late 2010, Lake Mead was approaching the "drought trigger" elevation of 1,075 feet (328 m), at which water supplies to Arizona and Nevada would be reduced in accordance with ...
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