Why is Lake Mead rising again?

Typically, Lake Mead's water levels rise over the winter and early spring months and start to decline in March. However, with the amount of snowfall supplementing the lake through the spring as it melted, this year the lake began rising in earnest in May and continued its upward trek through mid-September.



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Key Points. Lake Mead has dropped by 70% due to droughts in the West and it will take many years to refill again, naturally. The reservoir is vitally important to millions of people as a source of water, electricity, and recreation.

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Investments to enhance system conservation and improved hydrology have led to significant improvements for Lake Mead this year, the federal government announced Tuesday, after the lake hit historic lows last year and the remains of several bodies were found.

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Despite hope that the lake will return to what it once was, Lake Mead's chance at a full recovery is slim. Jennifer Pitt, director of the National Audubon Society's Colorado River Program, previously told Newsweek that it is possible only if three years of average snowfall occur with no water use from the reservoir.

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“While the amount of precipitation received in the lower basin and from tributary inflows helps, the greatest source of water for Lake Mead is still snow melt and flows from the upper basin.”

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What happens if Lake Mead dries up forever? If Lake Mead were to run out of water, the Hoover Dam would no longer be able to generate power or provide water to surrounding cities and farms. The Colorado River would essentially stop flowing, and the Southwest would be in a major water crisis.

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After falling to record lows in 2022, Lake Mead has seen its water levels rise 3 feet above projections after a precipitation-heavy winter. But experts warn it's only a temporary reprieve without a comprehensive water management plan.

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The Lake Mead problem could be resolved by draining Lake Powell and storing the water in Lake Mead. More than 5% of the water in the Colorado River evaporates off the surface of Lake Powell - which never should have been built.

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Dead pool conditions would mean the end of all electric production, as well as water, from the Colorado River. Electricity would not just be the only thing lost. Without Lake Mead, Las Vegas would lose access to 90 percent of its water sources.

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Most of our rainwater travels untreated through gutters, storm drains, channels, washes and eventually into the major source of our drinking water - Lake Mead. All storm drains lead to lake mead. Stormwater that falls in the Las Vegas Valley picks up pollutants and travels untreated to Lake Mead.

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There are many places to swim in the bright blue waters of Lake Mead and Lake Mohave. Be aware that there are no lifeguards in the park. Always wear a life jacket. Most fatalities at Lake Mead National Recreation Area could have been avoided if the person in the water was wearing a life jacket.

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Under the Probable Maximum scenario, Lake Powell's physical elevation is projected to be 3,583.38 feet on December 31, 2023. With intervening flows between Lake Powell and Lake Mead of 1.35 maf in CY 2023, Lake Mead's physical elevation is projected to be 1,066.20 feet on December 31, 2023.

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Without Lake Mead, Las Vegas would lose access to 90 percent of its water sources. If Lake Mead were to reach dead pool, it would technically still be able to supply drinking water to Las Vegas. But there will not be enough water for agricultural activities.

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LAS VEGAS (KLAS) — Television and social media videos of raging floodwaters after Tropical Storm Hilary lead the public to ask, “Does all that water help?” The answer is complicated, but officials say Hilary's direct effect on Lake Mead was “minor” and had more to do with reduced demand than anything else.

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Mead reaches dead pool at 895 feet. If Lake Powell reaches dead pool, the US Bureau of Reclamation—which declined our interview requests—would be unable to meet its obligation to deliver water downstream to Lake Mead. In which case, 40 million people would be affected.

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Lake Mead expected to have gained 20 feet of water by end of 2023. By the end of the year, the water level at Lake Mead is expected to be at least 20 feet higher than it was in January, according to a Bureau of Reclamation forecast released this week.

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As mentioned, it's possible for the water level in Lake Mead to drop to the point where the dam cannot generate hydroelectric power. However, it's very unlikely that the lake would completely run out of water.

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Rising temperatures due to climate change have sapped more than 10 trillion gallons of water from the Colorado River over the last two decades, enough water to completely fill Lake Mead from top to bottom, according to a recent study from researchers at UCLA.

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