National Drought Mitigation Center
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National Drought Mitigation Center
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Lake Mead falling into new low territory, reduced hydropower production
8/18/2021 12:00:00 AM



CATEGORIES:
Energy
Relief, Response & Restrictions
Water Supply & Quality
AFFECTED AREAS:
Mohave County, AZ
Clark County, NV

Start Date: 6/9/2021 - End Date: 12/31/2021
The level of Lake Mead was 1,067 feet on July 13. Hoover Dam’s hydropower efficiency has fallen about 25%, due to the historically low water level. Lake Mead has an increased likelihood of falling to 1,025 and 1,000 feet by 2025, with the Bureau of Reclamation estimating the chances at 58% and 21%. KTNV-TV Las Vegas Channel 13 (Nev.), July 14, 2021 Lake Mead dipped to its lowest level since the 1930s on June 16 at 1070.6 feet above sea level and was about 143 feet lower than its level in 2000 when it was last full. Each day brings new record lows. The lower water levels also mean reduced hydropower production at Hoover Dam. Capacity in recent weeks was 1,500 megawatts, or 25% lower than in better days when the dam produced 2,000 megawatts. CNN US (Atlanta, Ga.), June 17, 2021 Lake Mead fell below 1,071.61 feet above sea level on June 9, hitting the lowest level since the construction of the Hoover Dam in the 1930s. The lake’s rapid drop exceeded projections from even a few months ago, and the decline is expected to continue through 2021 and into 2023. A water shortage declaration is expected from the federal government in August, which will lead to large cuts in water allocations for Arizona, New Mexico and Mexico in 2022. USA Today (McLean, Va.), June 10, 2021
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