Current National Hurricane Center outlooks indicate no tropical cyclone formation is expected in the Atlantic basin through at least the next seven days, with sea surface temperatures still below the typical 26.5°C threshold needed for rapid intensification and persistent wind shear suppressing organization. Climatologically, only a handful of hurricanes have ever formed before June 1 since reliable records began, and none have reached sustained 74 mph winds this early in recent decades. Traders assign 98.3% probability to “No” because these unfavorable conditions align with the official season start on June 1 and the absence of any developing disturbances. A realistic shift would require an unforecasted low-pressure system to organize and intensify dramatically in the final week of May, an event that has occurred only rarely in historical analogs.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedWill a hurricane form by May 31?
$51,348 Vol.
$51,348 Vol.
$51,348 Vol.
$51,348 Vol.
The resolution source for this market will be NOAA’s list of named storms during the Atlantic hurricane season (https://www.nhc.noaa.gov/data/tcr/) and/or their data on individual storms.
If there is a potential named storm that has not yet been classified by May 31, 11:59 PM ET, the market may remain open until June 1, 12:00 PM ET to determine if a classification was made prior to midnight.
Market Opened: Dec 4, 2025, 3:05 PM ET
Resolver
0x65070BE91...The resolution source for this market will be NOAA’s list of named storms during the Atlantic hurricane season (https://www.nhc.noaa.gov/data/tcr/) and/or their data on individual storms.
If there is a potential named storm that has not yet been classified by May 31, 11:59 PM ET, the market may remain open until June 1, 12:00 PM ET to determine if a classification was made prior to midnight.
Resolver
0x65070BE91...Current National Hurricane Center outlooks indicate no tropical cyclone formation is expected in the Atlantic basin through at least the next seven days, with sea surface temperatures still below the typical 26.5°C threshold needed for rapid intensification and persistent wind shear suppressing organization. Climatologically, only a handful of hurricanes have ever formed before June 1 since reliable records began, and none have reached sustained 74 mph winds this early in recent decades. Traders assign 98.3% probability to “No” because these unfavorable conditions align with the official season start on June 1 and the absence of any developing disturbances. A realistic shift would require an unforecasted low-pressure system to organize and intensify dramatically in the final week of May, an event that has occurred only rarely in historical analogs.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated



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