Persistent drought and critically low Colorado River inflows, driven by below-average snowpack and elevated evaporation rates amid ongoing aridification, have positioned Lake Mead at a record-low elevation of approximately 1,038.89 feet as of late August 2026, with storage at just 26% of capacity per U.S. Bureau of Reclamation data. This trajectory, compounded by reduced releases from upstream Lake Powell and continued downstream demands, underpins the 54.5% market-implied odds for levels below 1,028 feet by year-end, consistent with USBR most-probable projections around 1,037 feet. Recent model runs highlight limited upside from conservation measures or variable winter precipitation, while higher bands above 1,038 feet reflect only modest near-term stabilization risks. Traders are monitoring the next 24-month study updates and early water-year inflow data for potential shifts.
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 Mead drop?
Below 1,028 ft 55%
1,028–1,033 ft 30.8%
Above 1,038 ft 13%
1,033–1,038 ft 4.0%
$14,325 Vol.
$14,325 Vol.
Above 1,038 ft
13%
1,033–1,038 ft
4%
1,028–1,033 ft
31%
Below 1,028 ft
55%
Below 1,028 ft 55%
1,028–1,033 ft 30.8%
Above 1,038 ft 13%
1,033–1,038 ft 4.0%
$14,325 Vol.
$14,325 Vol.
Above 1,038 ft
13%
1,033–1,038 ft
4%
1,028–1,033 ft
31%
Below 1,028 ft
55%
Resolution is determined by the lowest daily elevation recorded at Lake Mead (Hoover 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 Mead at Hoover Dam, available at https://data.usbr.gov/catalog/4370/item/6123. 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://lakemead.water-data.com/ may also be referenced, but if it disagrees with USBR, the USBR value governs.
Market Opened: Aug 17, 2026, 5:48 PM ET
Resolution Source
https://data.usbr.gov/catalog/4370/item/6123Resolver
0x69c47De9D...Resolution is determined by the lowest daily elevation recorded at Lake Mead (Hoover 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 Mead at Hoover Dam, available at https://data.usbr.gov/catalog/4370/item/6123. 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://lakemead.water-data.com/ may also be referenced, but if it disagrees with USBR, the USBR value governs.
Resolution Source
https://data.usbr.gov/catalog/4370/item/6123Resolver
0x69c47De9D...Persistent drought and critically low Colorado River inflows, driven by below-average snowpack and elevated evaporation rates amid ongoing aridification, have positioned Lake Mead at a record-low elevation of approximately 1,038.89 feet as of late August 2026, with storage at just 26% of capacity per U.S. Bureau of Reclamation data. This trajectory, compounded by reduced releases from upstream Lake Powell and continued downstream demands, underpins the 54.5% market-implied odds for levels below 1,028 feet by year-end, consistent with USBR most-probable projections around 1,037 feet. Recent model runs highlight limited upside from conservation measures or variable winter precipitation, while higher bands above 1,038 feet reflect only modest near-term stabilization risks. Traders are monitoring the next 24-month study updates and early water-year inflow data for potential shifts.
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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