**Ongoing severe drought conditions in the Colorado River basin, marked by record-low snowpack and inflows during water year 2026, are the primary driver pushing Lake Mead toward new lows near or below 1,035–1,028 ft.** As of late August 2026, the reservoir sits at approximately 1,039 ft—already below the prior record of 1,040.58 ft from 2022—following rapid declines fueled by persistently high temperatures that accelerate evaporation and minimal spring runoff. U.S. Bureau of Reclamation 24-month studies project continued drawdown through the end of 2026 and into 2027, with end-of-year levels near 1,035 ft and further drops possible absent major precipitation shifts. These verified hydrologic trends and model consensus underpin the market’s leading “below 1,028 ft” outcome at 41% implied probability, while uncertainty around post-2026 operating rules and variable monsoon activity keeps shorter-range bands (1,028–1,038 ft) active. Traders weigh official inflow forecasts and evaporation rates heavily in this environment.
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 41%
1,028–1,033 ft 20.3%
Above 1,038 ft 18%
1,033–1,038 ft 10.9%
Above 1,038 ft
18%
1,033–1,038 ft
11%
1,028–1,033 ft
20%
Below 1,028 ft
41%
Below 1,028 ft 41%
1,028–1,033 ft 20.3%
Above 1,038 ft 18%
1,033–1,038 ft 10.9%
Above 1,038 ft
18%
1,033–1,038 ft
11%
1,028–1,033 ft
20%
Below 1,028 ft
41%
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...**Ongoing severe drought conditions in the Colorado River basin, marked by record-low snowpack and inflows during water year 2026, are the primary driver pushing Lake Mead toward new lows near or below 1,035–1,028 ft.** As of late August 2026, the reservoir sits at approximately 1,039 ft—already below the prior record of 1,040.58 ft from 2022—following rapid declines fueled by persistently high temperatures that accelerate evaporation and minimal spring runoff. U.S. Bureau of Reclamation 24-month studies project continued drawdown through the end of 2026 and into 2027, with end-of-year levels near 1,035 ft and further drops possible absent major precipitation shifts. These verified hydrologic trends and model consensus underpin the market’s leading “below 1,028 ft” outcome at 41% implied probability, while uncertainty around post-2026 operating rules and variable monsoon activity keeps shorter-range bands (1,028–1,038 ft) active. Traders weigh official inflow forecasts and evaporation rates heavily in this environment.
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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