Strong El Niño conditions, with elevated vertical wind shear across the Atlantic main development region, have suppressed intensification and kept the 2026 season hurricane-free through early September despite five tropical storms forming earlier. Official National Hurricane Center outlooks show no tropical cyclone development expected over the next seven days amid calm basin conditions, aligning with trader consensus favoring no hurricane formation for the remainder of September at 46.5% implied probability. Forecasts from NOAA and Colorado State University highlight below-normal activity overall, with peak-season wind shear likely to persist and limit rapid organization. Key resolution factors include whether any late-September tropical wave can overcome shear to reach sustained 74 mph winds before October.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedWhen will the first hurricane form in the Atlantic in 2026?
No Atlantic hurricane will form in September 2026 47%
September 21 to September 25, 2026 21%
September 16 to September 20, 2026 12%
September 26 to September 30, 2026 11%
September 1 to September 10, 2026
1%
September 11 to September 15, 2026
5%
September 16 to September 20, 2026
12%
September 21 to September 25, 2026
21%
September 26 to September 30, 2026
11%
No Atlantic hurricane will form in September 2026
47%
No Atlantic hurricane will form in September 2026 47%
September 21 to September 25, 2026 21%
September 16 to September 20, 2026 12%
September 26 to September 30, 2026 11%
September 1 to September 10, 2026
1%
September 11 to September 15, 2026
5%
September 16 to September 20, 2026
12%
September 21 to September 25, 2026
21%
September 26 to September 30, 2026
11%
No Atlantic hurricane will form in September 2026
47%
A tropical cyclone is considered a hurricane when it has maximum sustained winds of 74 mph or greater (Category 1 or higher on the Saffir-Simpson Hurricane Wind Scale). A system is considered to have "formed" as a hurricane at the date and time of the first NHC public advisory that classifies a system in the Atlantic basin as a hurricane. Resolution is based on that first advisory, regardless of any later downward revision or reclassification. The sole determinant of when the hurricane formed is the issuance timestamp of that first classifying NHC advisory (evaluated in U.S. Eastern Time), not the estimated time at which the system's winds first reached 74 mph; for a system that straddles midnight between September 30 and October 1, 2026, the applicable bracket is determined solely by whether that advisory's issuance timestamp falls before or after 12:00 AM ET on October 1, 2026.
The bracket "No Atlantic hurricane will form in September 2026" will resolve "Yes" if no NHC advisory classifies any Atlantic-basin system as a hurricane at any time from 12:00 AM ET on September 1, 2026 through 11:59 PM ET on September 30, 2026. In the event that the NHC has not published any data by September 30, 2026 11:59 PM ET, or if the NHC becomes unavailable, this market will resolve to "No Atlantic hurricane will form in September 2026".
The resolution source for this market is the U.S. National Hurricane Center (NHC), available here: https://www.nhc.noaa.gov/
Market Opened: Sep 4, 2026, 12:02 PM ET
Resolution Source
https://www.nhc.noaa.gov/Resolver
0x69c47De9D...A tropical cyclone is considered a hurricane when it has maximum sustained winds of 74 mph or greater (Category 1 or higher on the Saffir-Simpson Hurricane Wind Scale). A system is considered to have "formed" as a hurricane at the date and time of the first NHC public advisory that classifies a system in the Atlantic basin as a hurricane. Resolution is based on that first advisory, regardless of any later downward revision or reclassification. The sole determinant of when the hurricane formed is the issuance timestamp of that first classifying NHC advisory (evaluated in U.S. Eastern Time), not the estimated time at which the system's winds first reached 74 mph; for a system that straddles midnight between September 30 and October 1, 2026, the applicable bracket is determined solely by whether that advisory's issuance timestamp falls before or after 12:00 AM ET on October 1, 2026.
The bracket "No Atlantic hurricane will form in September 2026" will resolve "Yes" if no NHC advisory classifies any Atlantic-basin system as a hurricane at any time from 12:00 AM ET on September 1, 2026 through 11:59 PM ET on September 30, 2026. In the event that the NHC has not published any data by September 30, 2026 11:59 PM ET, or if the NHC becomes unavailable, this market will resolve to "No Atlantic hurricane will form in September 2026".
The resolution source for this market is the U.S. National Hurricane Center (NHC), available here: https://www.nhc.noaa.gov/
Resolution Source
https://www.nhc.noaa.gov/Resolver
0x69c47De9D...Strong El Niño conditions, with elevated vertical wind shear across the Atlantic main development region, have suppressed intensification and kept the 2026 season hurricane-free through early September despite five tropical storms forming earlier. Official National Hurricane Center outlooks show no tropical cyclone development expected over the next seven days amid calm basin conditions, aligning with trader consensus favoring no hurricane formation for the remainder of September at 46.5% implied probability. Forecasts from NOAA and Colorado State University highlight below-normal activity overall, with peak-season wind shear likely to persist and limit rapid organization. Key resolution factors include whether any late-September tropical wave can overcome shear to reach sustained 74 mph winds before October.
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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