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icon for What will the White River at Indianapolis peak at during the August 2026 floods?

What will the White River at Indianapolis peak at during the August 2026 floods?

icon for What will the White River at Indianapolis peak at during the August 2026 floods?

What will the White River at Indianapolis peak at during the August 2026 floods?

Over 20 ft 98.4%

Under 14 ft <1%

17–20 ft <1%

14–17 ft <1%

Polymarket

$14,630 Vol.

Over 20 ft 98.4%

Under 14 ft <1%

17–20 ft <1%

14–17 ft <1%

Polymarket

$14,630 Vol.

Under 14 ft

$1,478 Vol.

<1%

14–17 ft

$1,688 Vol.

<1%

17–20 ft

$2,592 Vol.

<1%

Over 20 ft

$8,872 Vol.

98%

This market resolves "Yes" if the maximum gage height recorded at USGS streamgage 03353000 (White River at Indianapolis, IN) between market creation and 11:59 PM EDT August 31, 2026 is less than 14.00 feet. Otherwise, this market resolves "No". Resolution is based on the peak gage height value recorded during the specified window as published by USGS at https://waterdata.usgs.gov/monitoring-location/USGS-03353000#dataTypeId=continuous-00065-0&period=P7D&showFieldMeasurements=true. USGS real-time data is provisional and subject to revision; the last provisional value published by USGS for the specified window as of 11:59 PM EDT September 1, 2026 governs, regardless of any USGS revision, approval, or finalization published after that time. For reference, NWS designates flood stage at this location as 16.0 feet. The primary resolution source is USGS data for streamgage 03353000; however, a consensus of credible reporting citing USGS data may also be used.This market resolves "Yes" if the maximum gage height recorded at USGS streamgage 03353000 (White River at Indianapolis, IN) between market creation and 11:59 PM EDT August 31, 2026 is at or above 14.00 feet and below 17.00 feet. Otherwise, this market resolves "No". Resolution is based on the peak gage height value recorded during the specified window as published by USGS at https://waterdata.usgs.gov/monitoring-location/USGS-03353000#dataTypeId=continuous-00065-0&period=P7D&showFieldMeasurements=true. USGS real-time data is provisional and subject to revision; the last provisional value published by USGS for the specified window as of 11:59 PM EDT September 1, 2026 governs, regardless of any USGS revision, approval, or finalization published after that time. For reference, NWS designates flood stage at this location as 16.0 feet. The primary resolution source is USGS data for streamgage 03353000; however, a consensus of credible reporting citing USGS data may also be used.This market resolves "Yes" if the maximum gage height recorded at USGS streamgage 03353000 (White River at Indianapolis, IN) between market creation and 11:59 PM EDT August 31, 2026 is at or above 17.00 feet and below 20.00 feet. Otherwise, this market resolves "No". Resolution is based on the peak gage height value recorded during the specified window as published by USGS at https://waterdata.usgs.gov/monitoring-location/USGS-03353000#dataTypeId=continuous-00065-0&period=P7D&showFieldMeasurements=true. USGS real-time data is provisional and subject to revision; the last provisional value published by USGS for the specified window as of 11:59 PM EDT September 1, 2026 governs, regardless of any USGS revision, approval, or finalization published after that time. For reference, NWS designates flood stage at this location as 16.0 feet. The primary resolution source is USGS data for streamgage 03353000; however, a consensus of credible reporting citing USGS data may also be used.This market resolves "Yes" if the maximum gage height recorded at USGS streamgage 03353000 (White River at Indianapolis, IN) between market creation and 11:59 PM EDT August 31, 2026 is at or above 20.00 feet. Otherwise, this market resolves "No". Resolution is based on the peak gage height value recorded during the specified window as published by USGS at https://waterdata.usgs.gov/monitoring-location/USGS-03353000#dataTypeId=continuous-00065-0&period=P7D&showFieldMeasurements=true. USGS real-time data is provisional and subject to revision; the last provisional value published by USGS for the specified window as of 11:59 PM EDT September 1, 2026 governs, regardless of any USGS revision, approval, or finalization published after that time. For reference, NWS designates flood stage at this location as 16.0 feet. The primary resolution source is USGS data for streamgage 03353000; however, a consensus of credible reporting citing USGS data may also be used.Trader consensus has priced the Over 20 ft outcome at 98.6% implied probability because official USGS and NWS gauge records confirm the White River at Indianapolis crested well above that threshold during the mid-August 2026 event, with verified peaks including 21.18 ft near 82nd Street and 20.51 ft at Raymond Street. These readings exceed moderate flood stage (20 ft) and align with documented major flooding impacts along the river. NWS forecasts now show recession to well below flood stage with no additional significant rainfall expected through early September. The market resolves September 1 based on the final official peak; a measurement revision or selection of an atypical gauge location remains the primary low-probability scenario that could alter resolution.

This market resolves "Yes" if the maximum gage height recorded at USGS streamgage 03353000 (White River at Indianapolis, IN) between market creation and 11:59 PM EDT August 31, 2026 is less than 14.00 feet. Otherwise, this market resolves "No".

Resolution is based on the peak gage height value recorded during the specified window as published by USGS at https://waterdata.usgs.gov/monitoring-location/USGS-03353000#dataTypeId=continuous-00065-0&period=P7D&showFieldMeasurements=true. USGS real-time data is provisional and subject to revision; the last provisional value published by USGS for the specified window as of 11:59 PM EDT September 1, 2026 governs, regardless of any USGS revision, approval, or finalization published after that time. For reference, NWS designates flood stage at this location as 16.0 feet. The primary resolution source is USGS data for streamgage 03353000; however, a consensus of credible reporting citing USGS data may also be used.
Volume
$14,630
End Date
Sep 1, 2026
Market Opened
Aug 14, 2026, 2:27 PM ET

Resolver

0x69c47De9D...
This market resolves "Yes" if the maximum gage height recorded at USGS streamgage 03353000 (White River at Indianapolis, IN) between market creation and 11:59 PM EDT August 31, 2026 is less than 14.00 feet. Otherwise, this market resolves "No". Resolution is based on the peak gage height value recorded during the specified window as published by USGS at https://waterdata.usgs.gov/monitoring-location/USGS-03353000#dataTypeId=continuous-00065-0&period=P7D&showFieldMeasurements=true. USGS real-time data is provisional and subject to revision; the last provisional value published by USGS for the specified window as of 11:59 PM EDT September 1, 2026 governs, regardless of any USGS revision, approval, or finalization published after that time. For reference, NWS designates flood stage at this location as 16.0 feet. The primary resolution source is USGS data for streamgage 03353000; however, a consensus of credible reporting citing USGS data may also be used.
This market resolves "Yes" if the maximum gage height recorded at USGS streamgage 03353000 (White River at Indianapolis, IN) between market creation and 11:59 PM EDT August 31, 2026 is less than 14.00 feet. Otherwise, this market resolves "No". Resolution is based on the peak gage height value recorded during the specified window as published by USGS at https://waterdata.usgs.gov/monitoring-location/USGS-03353000#dataTypeId=continuous-00065-0&period=P7D&showFieldMeasurements=true. USGS real-time data is provisional and subject to revision; the last provisional value published by USGS for the specified window as of 11:59 PM EDT September 1, 2026 governs, regardless of any USGS revision, approval, or finalization published after that time. For reference, NWS designates flood stage at this location as 16.0 feet. The primary resolution source is USGS data for streamgage 03353000; however, a consensus of credible reporting citing USGS data may also be used.This market resolves "Yes" if the maximum gage height recorded at USGS streamgage 03353000 (White River at Indianapolis, IN) between market creation and 11:59 PM EDT August 31, 2026 is at or above 14.00 feet and below 17.00 feet. Otherwise, this market resolves "No". Resolution is based on the peak gage height value recorded during the specified window as published by USGS at https://waterdata.usgs.gov/monitoring-location/USGS-03353000#dataTypeId=continuous-00065-0&period=P7D&showFieldMeasurements=true. USGS real-time data is provisional and subject to revision; the last provisional value published by USGS for the specified window as of 11:59 PM EDT September 1, 2026 governs, regardless of any USGS revision, approval, or finalization published after that time. For reference, NWS designates flood stage at this location as 16.0 feet. The primary resolution source is USGS data for streamgage 03353000; however, a consensus of credible reporting citing USGS data may also be used.This market resolves "Yes" if the maximum gage height recorded at USGS streamgage 03353000 (White River at Indianapolis, IN) between market creation and 11:59 PM EDT August 31, 2026 is at or above 17.00 feet and below 20.00 feet. Otherwise, this market resolves "No". Resolution is based on the peak gage height value recorded during the specified window as published by USGS at https://waterdata.usgs.gov/monitoring-location/USGS-03353000#dataTypeId=continuous-00065-0&period=P7D&showFieldMeasurements=true. USGS real-time data is provisional and subject to revision; the last provisional value published by USGS for the specified window as of 11:59 PM EDT September 1, 2026 governs, regardless of any USGS revision, approval, or finalization published after that time. For reference, NWS designates flood stage at this location as 16.0 feet. The primary resolution source is USGS data for streamgage 03353000; however, a consensus of credible reporting citing USGS data may also be used.This market resolves "Yes" if the maximum gage height recorded at USGS streamgage 03353000 (White River at Indianapolis, IN) between market creation and 11:59 PM EDT August 31, 2026 is at or above 20.00 feet. Otherwise, this market resolves "No". Resolution is based on the peak gage height value recorded during the specified window as published by USGS at https://waterdata.usgs.gov/monitoring-location/USGS-03353000#dataTypeId=continuous-00065-0&period=P7D&showFieldMeasurements=true. USGS real-time data is provisional and subject to revision; the last provisional value published by USGS for the specified window as of 11:59 PM EDT September 1, 2026 governs, regardless of any USGS revision, approval, or finalization published after that time. For reference, NWS designates flood stage at this location as 16.0 feet. The primary resolution source is USGS data for streamgage 03353000; however, a consensus of credible reporting citing USGS data may also be used.Trader consensus has priced the Over 20 ft outcome at 98.6% implied probability because official USGS and NWS gauge records confirm the White River at Indianapolis crested well above that threshold during the mid-August 2026 event, with verified peaks including 21.18 ft near 82nd Street and 20.51 ft at Raymond Street. These readings exceed moderate flood stage (20 ft) and align with documented major flooding impacts along the river. NWS forecasts now show recession to well below flood stage with no additional significant rainfall expected through early September. The market resolves September 1 based on the final official peak; a measurement revision or selection of an atypical gauge location remains the primary low-probability scenario that could alter resolution.

This market resolves "Yes" if the maximum gage height recorded at USGS streamgage 03353000 (White River at Indianapolis, IN) between market creation and 11:59 PM EDT August 31, 2026 is less than 14.00 feet. Otherwise, this market resolves "No".

Resolution is based on the peak gage height value recorded during the specified window as published by USGS at https://waterdata.usgs.gov/monitoring-location/USGS-03353000#dataTypeId=continuous-00065-0&period=P7D&showFieldMeasurements=true. USGS real-time data is provisional and subject to revision; the last provisional value published by USGS for the specified window as of 11:59 PM EDT September 1, 2026 governs, regardless of any USGS revision, approval, or finalization published after that time. For reference, NWS designates flood stage at this location as 16.0 feet. The primary resolution source is USGS data for streamgage 03353000; however, a consensus of credible reporting citing USGS data may also be used.
Volume
$14,630
End Date
Sep 1, 2026
Market Opened
Aug 14, 2026, 2:27 PM ET

Resolver

0x69c47De9D...
This market resolves "Yes" if the maximum gage height recorded at USGS streamgage 03353000 (White River at Indianapolis, IN) between market creation and 11:59 PM EDT August 31, 2026 is less than 14.00 feet. Otherwise, this market resolves "No". Resolution is based on the peak gage height value recorded during the specified window as published by USGS at https://waterdata.usgs.gov/monitoring-location/USGS-03353000#dataTypeId=continuous-00065-0&period=P7D&showFieldMeasurements=true. USGS real-time data is provisional and subject to revision; the last provisional value published by USGS for the specified window as of 11:59 PM EDT September 1, 2026 governs, regardless of any USGS revision, approval, or finalization published after that time. For reference, NWS designates flood stage at this location as 16.0 feet. The primary resolution source is USGS data for streamgage 03353000; however, a consensus of credible reporting citing USGS data may also be used.

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Frequently Asked Questions

"What will the White River at Indianapolis peak at during the August 2026 floods?" is a prediction market on Polymarket with 4 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "Over 20 ft" at 98%, followed by "Under 14 ft" at 0%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 98¢ implies that the market collectively assigns a 98% chance to that outcome. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.

As of today, "What will the White River at Indianapolis peak at during the August 2026 floods?" has generated $14.6K in total trading volume since the market launched on Aug 14, 2026. This level of trading activity reflects strong engagement from the Polymarket community and helps ensure that the current odds are informed by a deep pool of market participants. You can track live price movements and trade on any outcome directly on this page.

To trade on "What will the White River at Indianapolis peak at during the August 2026 floods?," browse the 4 available outcomes listed on this page. Each outcome displays a current price representing the market's implied probability. To take a position, select the outcome you believe is most likely, choose "Yes" to trade in favor of it or "No" to trade against it, enter your amount, and click "Trade." If your chosen outcome is correct when the market resolves, your "Yes" shares pay out $1 each. If it's incorrect, they pay out $0. You can also sell your shares at any time before resolution if you want to lock in a profit or cut a loss.

The current frontrunner for "What will the White River at Indianapolis peak at during the August 2026 floods?" is "Over 20 ft" at 98%, meaning the market assigns a 98% chance to that outcome. The next closest outcome is "Under 14 ft" at 0%. These odds update in real-time as traders buy and sell shares, so they reflect the latest collective view of what's most likely to happen. Check back frequently or bookmark this page to follow how the odds shift as new information emerges.

The resolution rules for "What will the White River at Indianapolis peak at during the August 2026 floods?" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.