**Strong El Niño conditions and persistently quiet Atlantic basin activity are the dominant drivers keeping the market-implied probability of no hurricane forming in August 2026 above 75%.** As of mid-August, the season has produced only three named tropical storms—Arthur, Bertha, and Cristobal (which formed August 12–13 and remained weak)—with zero hurricanes recorded. NOAA’s August 6 update lowered expectations to 7–13 named storms, 2–6 hurricanes, and 0–2 major hurricanes for the full season, citing the ongoing El Niño’s suppression of Atlantic development through enhanced wind shear and drier mid-level air. No active systems or immediate development threats are noted by the National Hurricane Center, and climatological peak activity in early September remains weeks away. These verified conditions support trader consensus that the window for an August hurricane has narrowed substantially.
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 76%
August 27 to August 31, 2026 14%
August 22 to August 26, 2026 5%
August 17 to August 21, 2026 1.6%
August 17 to August 21, 2026
2%
August 22 to August 26, 2026
5%
August 27 to August 31, 2026
14%
No Atlantic hurricane will form in August 2026
76%
No Atlantic hurricane will form in August 2026 76%
August 27 to August 31, 2026 14%
August 22 to August 26, 2026 5%
August 17 to August 21, 2026 1.6%
August 17 to August 21, 2026
2%
August 22 to August 26, 2026
5%
August 27 to August 31, 2026
14%
No Atlantic hurricane will form in August 2026
76%
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...**Strong El Niño conditions and persistently quiet Atlantic basin activity are the dominant drivers keeping the market-implied probability of no hurricane forming in August 2026 above 75%.** As of mid-August, the season has produced only three named tropical storms—Arthur, Bertha, and Cristobal (which formed August 12–13 and remained weak)—with zero hurricanes recorded. NOAA’s August 6 update lowered expectations to 7–13 named storms, 2–6 hurricanes, and 0–2 major hurricanes for the full season, citing the ongoing El Niño’s suppression of Atlantic development through enhanced wind shear and drier mid-level air. No active systems or immediate development threats are noted by the National Hurricane Center, and climatological peak activity in early September remains weeks away. These verified conditions support trader consensus that the window for an August hurricane has narrowed substantially.
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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