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Drought-Stricken Lake Mead Less Than 150 Feet From “Dead Pool”
Drought-Stricken Lake Mead Less Than 150 Feet From “Dead Pool”
The surface of Lake Mead, North America’s largest artificial reservoir, now stands at 1044 feet above sea level and is dropping fast. If Lake Mead’s water level falls another 149 feet, a dangerous level known as a “dead pool” could wreak havoc across Southwestern US.
Since the beginning of March, Lake Mead has dropped about 23 feet, and compared with the 5-year trend, the reservoir’s water levels are well below average, at the lowest point since the lake was filled nearly a century ago.
A graph might not do justice to visualizing just how fast the water level has fallen. So here are three pictures of a sunken speedboat in the lake and the corresponding date. Just in May, the boat was partially submerged. Now there’s no water.
If Lake Mead were to keep dropping, it could be a couple of years until a danger zone at 895 feet is reached, which is the point water would no longer pass through Hoover Dam to supply California, Arizona, and Mexico. Below 895 feet, the lake would be considered a “dead pool.”
For more context of what’s happened over the last three decades as a megadrought grips the US West, here’s a view of the spillway of the Hoover Dam in 1983 versus 2021.
Weather satellites have captured an absolutely stunning view of the lake rapidly shrinking in the last two years.
A lake observer on YouTuber shows how the water level has dangerously dropped in the last two weeks.
Last week, Tanya Trujillo, the Interior Department’s assistant secretary for water and science, said in a speech, “We have an urgent need to act now.”
If no drastic action is taken and the lake hits dead pool level (read: “The Real Deadpool: America’s Drought Is Worse Than You Think”), millions of people in Arizona, California, Nevada, and parts of Mexico could experience devastating water shortages.
Water Shortage Crisis, Hoover Dam is at Record-Low Water Level
Water Shortage Crisis, Hoover Dam is at Record-Low Water Level
Severe Drought Could Threaten Power Supply in West for Years to Come
The WSJ reports Severe Drought Could Threaten Power Supply in West for Years to Come
The water level at Lake Mead, the Colorado River reservoir serving the Hoover Dam, fell to 1,068 ft. in July, the lowest level since the lake was first filled following the dam’s construction in the 1930s. This month, the federal government is expected to declare a water shortage on the Colorado River for the first time, triggering cutbacks in water allocations to surrounding states from the river.
If the water level drops 118 ft. from July’s level, to 950 ft., it would fall below the turbines and the dam must shut down, said Patti Aaron, public affairs officer at the U.S. Bureau of Reclamation.
The power declines are significant. At 1,200 ft. water elevation—where it was in the year 2000, when water levels were among the dam’s highest levels—the dam can power up to 450,000 homes. At the current elevation, that figure falls to 350,000.
The California Independent System Operator, or Caiso, which oversees the state’s power grid, last summer resorted to rolling blackouts during a West-wide heat wave that constrained the state’s ability to import electricity. The supply crunch was most acute in the evening, after solar production declined.
Elevation Stats
- Max Level: 1,229 Feet
- Level in 2000: 1,200 Feet
- Current Level: 1,068 Feet
- Decline Since 2000: 132 Feet
- Drop to Zero Power: 118 Feet
Colorado River Supply
Lake Powell feeds Lake Mead. The Colorado River supplies both.
Lake Powell is part of the Colorado River Upper Basin and Lake Mead is in the Lower Basin.
…click on the above link to read the rest of the article…
The Greatest Water Crisis In The History Of The United States
The Greatest Water Crisis In The History Of The United States
What are we going to do once all the water is gone? Thanks to the worst drought in more than 1,000 years, the western third of the country is facing the greatest water crisis that the United States has ever seen. Lake Mead is now the lowest that it has ever been since the Hoover Dam was finished in the 1930s, mandatory water restrictions have already been implemented in the state of California, and there are already widespread reports of people stealing water in some of the worst hit areas. But this is just the beginning. Right now, in a desperate attempt to maintain somewhat “normal” levels of activity, water is being pumped out of the ground in the western half of the nation at an absolutely staggering pace. Once that irreplaceable groundwater is gone, that is when the real crisis will begin. If this multi-year drought stretches on and becomes the “megadrought” that a lot of scientists are now warning about, life as we know it in much of the country is going to be fundamentally transformed and millions of Americans may be forced to find somewhere else to live.
Simply put, this is not a normal drought. What the western half of the nation is experiencing right now is highly unusual. In fact, scientists tell us that California has not seen anything quite like this in at least 1,200 years…
Analyzing tree rings that date back to 800 A.D. — a time when Vikings were marauding Europe and the Chinese were inventing gunpowder — there is no three-year period when California’s rainfall has been as low and its temperatures as hot as they have been from 2012 to 2014, the researchers found.
…click on the above link to read the rest of the article…
Water Crisis: Lake Mead, Largest US Reservoir, Faces Federal “Water Emergency,” Forced Rationing
Water Crisis: Lake Mead, Largest US Reservoir, Faces Federal “Water Emergency,” Forced Rationing
Leak Mead – on your left, when you drive from Las Vegas across the Hoover Dam – is the largest reservoir in the country when at capacity. It’s fed by the Colorado River which provides water for agriculture, industry, and 40 million people in Nevada, Arizona, California, and Mexico, including Los Angeles, San Diego, Phoenix, and Las Vegas. Now after 15 years of drought, the “lake” – a mud puddle surrounded by a huge chalky bathtub ring – is threatening to run dry.
It’s considered “operationally full” when the water level is at 1,229 feet elevation above sea level. On May 2, the water level was down to 1,078.9 feet above sea level, the lowest since it was being filled in May 1937. It’s down 15 feet from the same day a year ago. Over the last 36 months, the water level has dropped 44.8 feet. It’s down 150 feet from capacity.
If the water level is below 1,075 feet elevation – 4 feet below today’s level – by January 1, 2016, it will trigger a federal water emergency. And water rationing. Las Vegas Review Journal reported that forecasters expect the level to drop to 1073 feet by June, before Lake Powell would begin to release more water. Assuming “average or better snow accumulations in the mountains that feed the Colorado River – something that’s happened only three times in the past 15 years,” the water level on January 1 is expected to be barely above the federal shortage level.
Even with these somewhat rosy assumptions of “average or better than average snow accumulations,” the water level would begin set new lows next April. But if the next winter is anything like the last few, all bets are off.
…click on the above link to read the rest of the article…
