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СпутникиРНSpaceXРоскосмосNASALow Water Levels in Lake Powell and Lake Mead in August 2026
mwong4
Thu, 08/20/2026 - 16:46
Low Water Levels in Lake Powell and Lake Mead in August 2026
The two largest reservoirs in the United States provide water to 40 million people and irrigation for 5 million acres of farmland.
2 MIN READ
Aug. 24, 2026
Worldview Image of the Week
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The two largest reservoirs in the United States approached record low levels in the summer of 2026. Short- and long-term droughts, plus below-average winter snowfalls, diminished water supplies across the Colorado River watershed, which feeds into Lake Powell and Lake Mead. The river system supplies water to approximately 40 million people and 5 million acres of farmland in Wyoming, Colorado, Utah, New Mexico, Arizona, Nevada, and California.
The first image pair shows Lake Powell, the second largest reservoir in the U.S. According to the National Integrated Drought Information System, lake levels are "critically low at 22% full (33% average)." The U.S. Bureau of Reclamation (USBR) reported a reservoir level (pool elevation) of 3,518.79 feet above sea level as of August 23. The previous low, set in April 2023, was 3,519.92 feet. The comparison above shows the difference in the lake's extent on August 8, 2014 (left), and August 1, 2026 (right). Swipe the center bar left and right to see the differing water levels. The images were acquired by the Operational Land Imager (OLI) aboard the Landsat 8 and Landsat 9 platforms. The images are provided through the Harmonized Landsat Sentinel-2 (HLS) project and were chosen for their clear, cloud-free views at comparable times of the year.
Downstream, the largest reservoir in the U.S.—Lake Mead—reached its lowest level (1,039.77 feet according to USBR) since it was filled in 1937. The comparison above shows Lake Mead on August 14, 2016, and August 17, 2026. The true-color reflectance images were acquired by the MultiSpectral Instrument (MSI) aboard the European Space Agency's Sentinel-2A and B platforms. NASA Earth Observatory published closeups and the long-term story of changes along a section of Lake Powell.Visit Worldview to visualize near real-time imagery and historical imagery from NASA's Earth Science Data and Information System (ESDIS); find more imagery in our Worldview weekly image archive.
Details
Last Updated
Aug. 25, 2026
Published on
Aug. 24, 2026
Data Center/Project
Land Processes DAAC (LP DAAC)
The two largest reservoirs in the United States provide water to 40 million people and irrigation for 5 million acres of farmland.
Aug. 24, 2026
Worldview Image of the Week
The two largest reservoirs in the United States approached record low levels in the summer of 2026. Short- and long-term droughts, plus below-average winter snowfalls, diminished water supplies across the Colorado River watershed, which feeds into Lake Powell and Lake Mead. The river system supplies water to approximately 40 million people and 5 million acres of farmland in Wyoming, Colorado, Utah, New Mexico, Arizona, Nevada, and California.
The first image pair shows Lake Powell, the second largest reservoir in the U.S. According to the National Integrated Drought Information System, lake levels are "critically low at 22% full (33% average)." The U.S. Bureau of Reclamation (USBR) reported a reservoir level (pool elevation) of 3,518.79 feet above sea level as of August 23. The previous low, set in April 2023, was 3,519.92 feet.
The comparison above shows the difference in the lake's extent on August 8, 2014 (left), and August 1, 2026 (right). Swipe the center bar left and right to see the differing water levels. The images were acquired by the Operational Land Imager (OLI) aboard the Landsat 8 and Landsat 9 platforms. The images are provided through the Harmonized Landsat Sentinel-2 (HLS) project and were chosen for their clear, cloud-free views at comparable times of the year.
| # | Наименование новости | Тональность | Информативность | Дата публикации |
|---|---|---|---|---|
| 1 | Lake Powell hits record low, threatening key water and electricity supply for millions | 0 | 7.1 | 16-08-2026 |
| 2 | Lake Powell is shrinking toward ‘dead pool’ levels | 0 | 6.06 | 31-07-2026 |
| 3 | Уровень воды в двух крупнейших водохранилищах США упал до минимума | 0 | 8.63 | 17-08-2026 |
| 4 | Lake Mead sets a record low. It’s only the beginning | 0 | 8.1 | 14-08-2026 |
| 5 | Водохозяйственная обстановка на 24.01.2026 | 0 | 8 | 25-01-2026 |
| 6 | Водохозяйственная обстановка на 26.01.2026 | 0 | 7 | 26-01-2026 |
| 7 | Водохозяйственная обстановка на 278.01.2026 | 0 | 10 | 28-01-2026 |
| 8 | Hackers targeted municipal water systems in 7 states this week, FBI says | 0 | 7.7 | 31-07-2026 |
| 9 | Там, где раньше была вода, спутник теперь видит километры высохшего ... | 0 | 14.22 | 07-09-2026 |
| 10 | Обмеление Ладожского озера в 2026 году: ждать ли восстановления уровня воды | 0 | 8.75 | 07-08-2026 |