Current Lake Mead levels near 1,039 feet—near record lows amid the Colorado River Basin's multiyear drought—reflect critically low inflows from the Upper Basin, driven by record-low 2025-2026 Rocky Mountain snowpack and reduced runoff. High summer evaporation, ongoing Lower Basin deliveries, and limited releases from Lake Powell sustain the drawdown, with U.S. Bureau of Reclamation projections showing further declines through 2027 under most-probable scenarios. Trader consensus splits across the 1,028–1,033 ft and above-1,038 ft bins because winter 2026-2027 precipitation and snowpack remain uncertain; above-average moisture could stabilize levels near current ranges, while continued aridity would push minima lower. New 2027-2028 operating guidelines and conservation cuts add variables, though models indicate they slow rather than reverse the trend.
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 48%
1,028–1,033 ft 24.9%
Above 1,038 ft 16%
1,033–1,038 ft 14.1%
Above 1,038 ft
16%
1,033–1,038 ft
14%
1,028–1,033 ft
25%
Below 1,028 ft
48%
Below 1,028 ft 48%
1,028–1,033 ft 24.9%
Above 1,038 ft 16%
1,033–1,038 ft 14.1%
Above 1,038 ft
16%
1,033–1,038 ft
14%
1,028–1,033 ft
25%
Below 1,028 ft
48%
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...Current Lake Mead levels near 1,039 feet—near record lows amid the Colorado River Basin's multiyear drought—reflect critically low inflows from the Upper Basin, driven by record-low 2025-2026 Rocky Mountain snowpack and reduced runoff. High summer evaporation, ongoing Lower Basin deliveries, and limited releases from Lake Powell sustain the drawdown, with U.S. Bureau of Reclamation projections showing further declines through 2027 under most-probable scenarios. Trader consensus splits across the 1,028–1,033 ft and above-1,038 ft bins because winter 2026-2027 precipitation and snowpack remain uncertain; above-average moisture could stabilize levels near current ranges, while continued aridity would push minima lower. New 2027-2028 operating guidelines and conservation cuts add variables, though models indicate they slow rather than reverse the trend.
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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