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MarketsClimate

How low will Lake Powell drop?

Polymarket prediction market· Same prices, rules and result

OPEN4 optionsCloses Apr 17, 2027Research 2h ago

Polymarket chance · top 4 of 4 options

Above 3,510 ft 86%3,500–3,510 ft 8%3,490–3,500 ft <1%Below 3,490 ft <1%

4 options · in level order

OptionChance: Polymarket's displayed chance: the midpoint of the best bid and ask. When the spread is wider than 10¢, the last trade instead, as on Polymarket.24hAI analystsTiers 1–2Buy
Above 3,510 ft86%−0.5 pts64%2 · 1
3,500–3,510 ft8%−2.5 pts19%1 · 1
3,490–3,500 ft<1%—3%1 · 0
Below 3,490 ft<1%—2%1 · 0

4 open levels, in level order.

1AI analysts

7 AI analysts · each gives every option a chance · updated 2h ago
OptionMarketAI averageAIGap
Above 3,510 ft86%64%−22
3,500–3,510 ft8%19%+11
3,490–3,500 ft<1%3%+2
Below 3,490 ft<1%2%+1

AI analysts' average · Below 3,490 ft

2%

1 pts above the market · 1 AI analyst

Track record

Track record: How close each AI analyst's odds came to the result on settled markets, against the market price at the moment of each view (Brier score, each market once). 1 level, 0 price closer, on 171 settled markets each. Past performance is not indicative of future results.

Each AI analyst's odds and reason for every option are in Plus. The Free preview shows the averages and the gaps.

The AI analysts are Kellian's own agents and trade the markets they rate, with play money. Past performance is not indicative of future results.

2News

  • 4h
    Colorado mine spill turned a river orange, then reached Lake Powell in a week
    Yahoo
  • 7h
    Hanksville businesses feeling effects of lower water levels at Lake Powell
    KSL News
  • 22h
    Hurricane declares emergency over flooding; warning for many areas near Lake Powell
    KSL News
  • 1d
    A 502-foot concrete dam on the Green River is letting up to a million acre-feet out of its reservoir to keep Lake Powell above the line where its eight turbines shut down, the lake behind it has dropped 34 feet, and the water keeps flowing for six more months
    Autonocion.com
  • 1d
    Lake Mead Lost 192 Feet, Lake Powell Lost 179
    WorldAtlas
  • 2d
    What Happens If Navajo Reservoir Is Drained To Save Lake Powell
    WorldAtlas
  • 3d
    Why some people want Lake Powell to vanish
    USA Today
  • 4d
    What Happens To The Grand Canyon When Lake Powell Dies
    WorldAtlas
  • 4d
    Page, Arizona Confronts an Uncertain Future as Lake Powell Shrinks
    La Voce di New York
  • 5d
    Lake Powell is up three feet. Lake Mead keeps setting record lows. What the Pacific storms did, and did not do, for the Colorado River
    Kiowa County Press
  • 5d
    Why Lake Powell Has More Shoreline Than The California Coast
    WorldAtlas
  • 6d
    Man celebrates 80th birthday by skiing 80 miles on Lake Powell
    FOX 13 News Utah
  • 6d
    Labyrinth Canyon on Lake Powell, where the lake ends and the ground of the side canyon begins, as seen on Oct. 7, 2026. This area was once under about 100 feet of water when the lake was full.
    The Lufkin Daily News
  • 6d
    The Padre Bay area of Lake Powell as seen from atop Tower Butte in the Glen Canyon National Recreation Area on Oct. 7, 2026, with lake levels sitting at about 22% full.
    The Lufkin Daily News
  • 6d
    Dropping Lake Powell levels reveal 'crime against nature'
    USA Today
  • 6d
    New aerial photos show just how far Lake Powell water level has fallen
    USA Today
Headlines link to the publisher. Kellian shows titles only.

3Smart money: Ranked traders who hold this market: side, shares and average entry. From Polymarket's public data.

Polymarket's weather traders by 3-month profit · updated 2h ago
OptionYes holdersNo holdersYes · No
Above 3,510 ftYes KiernanMeisterKiernanMeister: Tier 1, #4 by 3M P&L in this topic. Plus shows their size and average entry. T1 · No Started-with-20-USDStarted-with-20-USD: Tier 1, #6 by 3M P&L in this topic. Plus shows their size and average entry. T12 KiernanMeisterKiernanMeister: Tier 1, #4 by 3M P&L in this topic. Plus shows their size and average entry. T1·molodoyymolodoyy: Tier 1, #8 by 3M P&L in this topic. Plus shows their size and average entry. T1 1 Started-with-20-USDStarted-with-20-USD: Tier 1, #6 by 3M P&L in this topic. Plus shows their size and average entry. T12 · 1
3,500–3,510 ftYes molodoyymolodoyy: Tier 1, #8 by 3M P&L in this topic. Plus shows their size and average entry. T1 · No Started-with-20-USDStarted-with-20-USD: Tier 1, #6 by 3M P&L in this topic. Plus shows their size and average entry. T11 molodoyymolodoyy: Tier 1, #8 by 3M P&L in this topic. Plus shows their size and average entry. T11 Started-with-20-USDStarted-with-20-USD: Tier 1, #6 by 3M P&L in this topic. Plus shows their size and average entry. T11 · 1
3,490–3,500 ftYes Started-with-20-USDStarted-with-20-USD: Tier 1, #6 by 3M P&L in this topic. Plus shows their size and average entry. T11 Started-with-20-USDStarted-with-20-USD: Tier 1, #6 by 3M P&L in this topic. Plus shows their size and average entry. T101 · 0
Below 3,490 ftYes Started-with-20-USDStarted-with-20-USD: Tier 1, #6 by 3M P&L in this topic. Plus shows their size and average entry. T11 Started-with-20-USDStarted-with-20-USD: Tier 1, #6 by 3M P&L in this topic. Plus shows their size and average entry. T101 · 0

Best-ranked first. Tier 1 ranks 1–10, Tier 2 ranks 11–50.

See all of them, their size, average entry, when most of their shares came in, and every move.

Past performance is not indicative of future results.

Rules Polymarket's rules · the same for all 4 options

This market resolves "Yes" if the lowest daily elevation recorded at Lake Powell (Glen Canyon Dam, USBR site) between market creation and March 31, 2027 falls below 3,490.00 feet. Otherwise, this market resolves "No." For reference, 3,490 feet is the minimum power pool elevation below which Glen Canyon Dam can no longer generate hydroelectric power. Resolution is determined by the lowest daily elevation recorded at Lake Powell (Glen Canyon 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 Powell at Glen Canyon Dam, available at https://data.usbr.gov/catalog/2362/item/508. 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://lakepowell.water-data.com/ may also be referenced, but if it disagrees with USBR, the USBR value governs. In the case that the Resolution Source publishes data, sufficient to settle a Market, that is clearly erroneous and the result of technical or operational error, or of unauthorized interference with the Resolution Source or its data, the Market may remain open for a period of up to seven (7) calendar days (ET) from the time of the original release, in anticipation of a correction by the Resolution Source. If the Resolution Source publishes a corrected value within that period, that value will be eligible for resolution. If no corrected value is published within that period, Polymarket will issue a Clarification to determine whether the originally published value may be eligible for resolution, or whether other action is required to preserve the orderly functioning of the Market.Show rulesHide rules
Resolution criteria
This market resolves "Yes" if the lowest daily elevation recorded at Lake Powell (Glen Canyon Dam, USBR site) between market creation and March 31, 2027 falls below 3,490.00 feet. Otherwise, this market resolves "No." For reference, 3,490 feet is the minimum power pool elevation below which Glen Canyon Dam can no longer generate hydroelectric power. Resolution is determined by the lowest daily elevation recorded at Lake Powell (Glen Canyon 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 Powell at Glen Canyon Dam, available at https://data.usbr.gov/catalog/2362/item/508. 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://lakepowell.water-data.com/ may also be referenced, but if it disagrees with USBR, the USBR value governs. In the case that the Resolution Source publishes data, sufficient to settle a Market, that is clearly erroneous and the result of technical or operational error, or of unauthorized interference with the Resolution Source or its data, the Market may remain open for a period of up to seven (7) calendar days (ET) from the time of the original release, in anticipation of a correction by the Resolution Source. If the Resolution Source publishes a corrected value within that period, that value will be eligible for resolution. If no corrected value is published within that period, Polymarket will issue a Clarification to determine whether the originally published value may be eligible for resolution, or whether other action is required to preserve the orderly functioning of the Market.
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Below 3,490 ft · Buy YesOption 4 of 4

Polymarket price · live

Yes1¢
No100¢

Mid: The midpoint between the best price to buy and the best price to sell. When the spread is 10¢ or less, this is the chance the page shows. 1¢ · Spread: The gap between the best price to buy and the best price to sell. A wide spread means few orders near the price. 1¢

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Before you decide · Below 3,490 ft

  • News3 today · latest 4h
  • AI analysts2% · 1 pts above
  • Tiers 1–21 Yes · 0 No
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