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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?

Under 14 ft 51%

14–17 ft 39%

17–20 ft 37%

Over 20 ft 36%

Polymarket
NEW

Under 14 ft 51%

14–17 ft 39%

17–20 ft 37%

Over 20 ft 36%

Polymarket
NEW

Under 14 ft

$60 Vol.

51%

14–17 ft

$0 Vol.

39%

17–20 ft

$0 Vol.

37%

Over 20 ft

$0 Vol.

36%

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.Recent record upstream flooding on the White River near Anderson, Indiana—cresting above 24 feet and exceeding the 1913 benchmark—has sent a substantial flood wave downstream toward Indianapolis gauges. National Weather Service forecasts for sites like Nora (82nd Street) project peaks near 20.5 feet, with Indianapolis-area stages currently rising from the 11–16 foot range amid moderate to major flood thresholds (16–25 feet). Prolonged heavy rainfall and saturated soils in central Indiana drive the event, while attenuation, additional rain, and precise crest timing introduce uncertainty that aligns with market-implied odds favoring under-14-foot or 14–20-foot outcomes over extremes. Updated NWS hydrographs and USGS observations in coming days will refine these probabilities.

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
$60
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.Recent record upstream flooding on the White River near Anderson, Indiana—cresting above 24 feet and exceeding the 1913 benchmark—has sent a substantial flood wave downstream toward Indianapolis gauges. National Weather Service forecasts for sites like Nora (82nd Street) project peaks near 20.5 feet, with Indianapolis-area stages currently rising from the 11–16 foot range amid moderate to major flood thresholds (16–25 feet). Prolonged heavy rainfall and saturated soils in central Indiana drive the event, while attenuation, additional rain, and precise crest timing introduce uncertainty that aligns with market-implied odds favoring under-14-foot or 14–20-foot outcomes over extremes. Updated NWS hydrographs and USGS observations in coming days will refine these probabilities.

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
$60
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 "Under 14 ft" at 51%, followed by "14–17 ft" at 40%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 51¢ implies that the market collectively assigns a 51% 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.

"What will the White River at Indianapolis peak at during the August 2026 floods?" is a newly created market on Polymarket, launched on Aug 14, 2026. As an early market, this is your opportunity to be among the first traders to set the odds and establish the market's initial price signals. You can also bookmark this page to track volume and trading activity as the market gains traction over time.

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 "Under 14 ft" at 51%, meaning the market assigns a 51% chance to that outcome. The next closest outcome is "14–17 ft" at 40%. 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.