Current Lake Powell elevation stands near 3,519 ft amid persistently low inflows at 37% of average for water year 2026, driven by the ongoing megadrought and warming temperatures that reduce snowpack runoff efficiency and increase evaporation. U.S. Bureau of Reclamation models project a decline to roughly 3,508–3,516 ft by December 2026 under the most probable scenario, with releases capped at 6.0 million acre-feet and supplemental upstream transfers providing limited buffer. Trader odds cluster around the 3,490–3,510 ft range because next winter’s Upper Basin snowpack—still unforecastable this far ahead—will dictate spring 2027 peak inflows and the reservoir’s seasonal low before monsoon or later runoff effects. Model consensus shows elevated risk of breaching 3,510 ft but low probability of dropping below the 3,490 ft power pool threshold without further extreme dryness.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHow low will Lake Powell drop?
Above 3,510 ft 34%
3,490–3,500 ft 30%
3,500–3,510 ft 21%
Below 3,490 ft 5%
Above 3,510 ft
44%
3,500–3,510 ft
23%
3,490–3,500 ft
34%
Below 3,490 ft
5%
Above 3,510 ft 34%
3,490–3,500 ft 30%
3,500–3,510 ft 21%
Below 3,490 ft 5%
Above 3,510 ft
44%
3,500–3,510 ft
23%
3,490–3,500 ft
34%
Below 3,490 ft
5%
Resolution is determined by the lowest daily elevation recorded at Lake Powell (Glen Canyon Dam, USBR site) between market creation and March 31, 2027. Because a lower reading can occur at any point up to March 31, 2027, all outcomes are settled after the window closes, based on the lowest daily elevation recorded during the window.
The resolution source is the minimum daily lake elevation published by the U.S. Bureau of Reclamation for Lake Powell at Glen Canyon Dam, available at https://data.usbr.gov/catalog/2362/item/508. USBR data is provisional and subject to revision; the lowest daily elevation reflected in USBR data as of April 15, 2027 governs, and revisions published after April 15, 2027 will not change the outcome. Daily elevation data published at https://lakepowell.water-data.com/ may also be referenced, but if it disagrees with USBR, the USBR value governs.
Market Opened: Aug 17, 2026, 5:49 PM ET
Resolution Source
https://data.usbr.gov/catalog/2362/item/508Resolver
0x69c47De9D...Resolution is determined by the lowest daily elevation recorded at Lake Powell (Glen Canyon Dam, USBR site) between market creation and March 31, 2027. Because a lower reading can occur at any point up to March 31, 2027, all outcomes are settled after the window closes, based on the lowest daily elevation recorded during the window.
The resolution source is the minimum daily lake elevation published by the U.S. Bureau of Reclamation for Lake Powell at Glen Canyon Dam, available at https://data.usbr.gov/catalog/2362/item/508. USBR data is provisional and subject to revision; the lowest daily elevation reflected in USBR data as of April 15, 2027 governs, and revisions published after April 15, 2027 will not change the outcome. Daily elevation data published at https://lakepowell.water-data.com/ may also be referenced, but if it disagrees with USBR, the USBR value governs.
Resolution Source
https://data.usbr.gov/catalog/2362/item/508Resolver
0x69c47De9D...Current Lake Powell elevation stands near 3,519 ft amid persistently low inflows at 37% of average for water year 2026, driven by the ongoing megadrought and warming temperatures that reduce snowpack runoff efficiency and increase evaporation. U.S. Bureau of Reclamation models project a decline to roughly 3,508–3,516 ft by December 2026 under the most probable scenario, with releases capped at 6.0 million acre-feet and supplemental upstream transfers providing limited buffer. Trader odds cluster around the 3,490–3,510 ft range because next winter’s Upper Basin snowpack—still unforecastable this far ahead—will dictate spring 2027 peak inflows and the reservoir’s seasonal low before monsoon or later runoff effects. Model consensus shows elevated risk of breaching 3,510 ft but low probability of dropping below the 3,490 ft power pool threshold without further extreme dryness.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated

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