The below-normal 2026 Atlantic hurricane season, driven by a strengthening El Niño and associated wind shear and drier air across the main development region, has produced only three tropical storms through August 24 with zero hurricanes. NOAA’s August update and Colorado State University forecasts emphasize 7–13 named storms and just 2–6 hurricanes for the full season, well below averages, with activity so far limited to weak, short-lived systems like Cristobal. As peak season approaches, current NHC monitoring shows only marginal development potential for an area east of Bermuda through the end of the month. These conditions underpin the market’s strong consensus that August will close without a hurricane, while the narrow window for late-month formation keeps slim odds on the final days.
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 August 2026 89%
August 27 to August 31, 2026 11%
August 22 to August 26, 2026 1.0%
August 22 to August 26, 2026
1%
August 27 to August 31, 2026
11%
No Atlantic hurricane will form in August 2026
89%
No Atlantic hurricane will form in August 2026 89%
August 27 to August 31, 2026 11%
August 22 to August 26, 2026 1.0%
August 22 to August 26, 2026
1%
August 27 to August 31, 2026
11%
No Atlantic hurricane will form in August 2026
89%
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 August 31 and September 1, 2026, the applicable bracket is determined solely by whether that advisory's issuance timestamp falls before or after 12:00 AM ET on September 1, 2026.
The bracket "No Atlantic hurricane will form in August 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 August 13, 2026 through 11:59 PM ET on August 31, 2026.
The resolution source for this market is the U.S. National Hurricane Center (NHC), available here: https://www.nhc.noaa.gov/
Market Opened: Aug 12, 2026, 11:07 AM 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 August 31 and September 1, 2026, the applicable bracket is determined solely by whether that advisory's issuance timestamp falls before or after 12:00 AM ET on September 1, 2026.
The bracket "No Atlantic hurricane will form in August 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 August 13, 2026 through 11:59 PM ET on August 31, 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...The below-normal 2026 Atlantic hurricane season, driven by a strengthening El Niño and associated wind shear and drier air across the main development region, has produced only three tropical storms through August 24 with zero hurricanes. NOAA’s August update and Colorado State University forecasts emphasize 7–13 named storms and just 2–6 hurricanes for the full season, well below averages, with activity so far limited to weak, short-lived systems like Cristobal. As peak season approaches, current NHC monitoring shows only marginal development potential for an area east of Bermuda through the end of the month. These conditions underpin the market’s strong consensus that August will close without a hurricane, while the narrow window for late-month formation keeps slim odds on the final days.
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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