Current El Niño conditions, now established and strengthening toward an OND peak, represent the dominant factor suppressing U.S. tornado activity in August 2026 relative to climatology. NOAA data place the 1991–2020 August average at 81 confirmed tornadoes, with El Niño episodes typically reducing counts through altered jet stream patterns and lower convective available potential energy across the Great Plains and Midwest. Trader consensus at 50% across sub-170 buckets, versus just 4% for 170+, aligns with this signal and recent below-average months like August 2025 (42 reports). Short-term model runs and MJO influences introduce modest uncertainty around the 40–99 range, but no major pattern shifts are anticipated before the month begins.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHow many Tornadoes in the US in August 2026?
How many Tornadoes in the US in August 2026?
60-79 17%
40–59 16%
<40 15%
80-99 12%
NEW
NEW
Sep 1, 2026
<40
21%
40–59
24%
60-79
25%
80-99
25%
100–119
24%
120–139
20%
140-169
16%
170–199
5%
200+
7%
60-79 17%
40–59 16%
<40 15%
80-99 12%
NEW
NEW
Sep 1, 2026
<40
$52 Vol.
21%
40–59
$85 Vol.
24%
60-79
$60 Vol.
25%
80-99
$52 Vol.
25%
100–119
$52 Vol.
24%
120–139
$52 Vol.
20%
140-169
$52 Vol.
16%
170–199
$47 Vol.
5%
200+
$113 Vol.
7%
This market will resolve according to the number of tornadoes recorded in the United States during the specified month, based on the monthly count published on the National Centers for Environmental Information U.S. Tornadoes Time Series page (see: https://www.ncei.noaa.gov/access/monitoring/tornadoes/time-series).
Only tornadoes appearing in the final NCEI dataset for that month will count.
As of market creation, the relevant report is scheduled to be released on September 9, 2026, at 5:01 PM GMT+1 or 11:00 AM ET (Release schedule: https://www.ncei.noaa.gov/access/monitoring/dyk/monthly-releases). The market will resolve based on the first relevant tornado count published on the NCEI tornado time-series page after this scheduled release time.
If the value published after this scheduled release time is labeled preliminary, it will still determine resolution, and the market will resolve independently of any subsequent revisions, corrections, or retroactive adjustments.
The market will not resolve based on any preliminary values published before the scheduled release time.
If no data is published by the scheduled release time, or if the NCEI website is temporarily unavailable, this market will remain open until that data is made available. If the relevant data is not made available by the date of the next scheduled publication ET, this market will resolve based on available data for the most recent prior month. If the NCEI website becomes permanently unavailable, this market will resolve using another credible source.Current El Niño conditions, now established and strengthening toward an OND peak, represent the dominant factor suppressing U.S. tornado activity in August 2026 relative to climatology. NOAA data place the 1991–2020 August average at 81 confirmed tornadoes, with El Niño episodes typically reducing counts through altered jet stream patterns and lower convective available potential energy across the Great Plains and Midwest. Trader consensus at 50% across sub-170 buckets, versus just 4% for 170+, aligns with this signal and recent below-average months like August 2025 (42 reports). Short-term model runs and MJO influences introduce modest uncertainty around the 40–99 range, but no major pattern shifts are anticipated before the month begins.
This market will resolve according to the number of tornadoes recorded in the United States during the specified month, based on the monthly count published on the National Centers for Environmental Information U.S. Tornadoes Time Series page (see: https://www.ncei.noaa.gov/access/monitoring/tornadoes/time-series).
Only tornadoes appearing in the final NCEI dataset for that month will count.
As of market creation, the relevant report is scheduled to be released on September 9, 2026, at 5:01 PM GMT+1 or 11:00 AM ET (Release schedule: https://www.ncei.noaa.gov/access/monitoring/dyk/monthly-releases). The market will resolve based on the first relevant tornado count published on the NCEI tornado time-series page after this scheduled release time.
If the value published after this scheduled release time is labeled preliminary, it will still determine resolution, and the market will resolve independently of any subsequent revisions, corrections, or retroactive adjustments.
The market will not resolve based on any preliminary values published before the scheduled release time.
If no data is published by the scheduled release time, or if the NCEI website is temporarily unavailable, this market will remain open until that data is made available. If the relevant data is not made available by the date of the next scheduled publication ET, this market will resolve based on available data for the most recent prior month. If the NCEI website becomes permanently unavailable, this market will resolve using another credible source.
Only tornadoes appearing in the final NCEI dataset for that month will count.
As of market creation, the relevant report is scheduled to be released on September 9, 2026, at 5:01 PM GMT+1 or 11:00 AM ET (Release schedule: https://www.ncei.noaa.gov/access/monitoring/dyk/monthly-releases). The market will resolve based on the first relevant tornado count published on the NCEI tornado time-series page after this scheduled release time.
If the value published after this scheduled release time is labeled preliminary, it will still determine resolution, and the market will resolve independently of any subsequent revisions, corrections, or retroactive adjustments.
The market will not resolve based on any preliminary values published before the scheduled release time.
If no data is published by the scheduled release time, or if the NCEI website is temporarily unavailable, this market will remain open until that data is made available. If the relevant data is not made available by the date of the next scheduled publication ET, this market will resolve based on available data for the most recent prior month. If the NCEI website becomes permanently unavailable, this market will resolve using another credible source.
Market Opened: Jul 28, 2026, 1:44 PM ET
Volume
$566End Date
Sep 1, 2026Market Opened
Jul 28, 2026, 1:44 PM ETResolver
0x69c47De9D...This market will resolve according to the number of tornadoes recorded in the United States during the specified month, based on the monthly count published on the National Centers for Environmental Information U.S. Tornadoes Time Series page (see: https://www.ncei.noaa.gov/access/monitoring/tornadoes/time-series).
Only tornadoes appearing in the final NCEI dataset for that month will count.
As of market creation, the relevant report is scheduled to be released on September 9, 2026, at 5:01 PM GMT+1 or 11:00 AM ET (Release schedule: https://www.ncei.noaa.gov/access/monitoring/dyk/monthly-releases). The market will resolve based on the first relevant tornado count published on the NCEI tornado time-series page after this scheduled release time.
If the value published after this scheduled release time is labeled preliminary, it will still determine resolution, and the market will resolve independently of any subsequent revisions, corrections, or retroactive adjustments.
The market will not resolve based on any preliminary values published before the scheduled release time.
If no data is published by the scheduled release time, or if the NCEI website is temporarily unavailable, this market will remain open until that data is made available. If the relevant data is not made available by the date of the next scheduled publication ET, this market will resolve based on available data for the most recent prior month. If the NCEI website becomes permanently unavailable, this market will resolve using another credible source.Current El Niño conditions, now established and strengthening toward an OND peak, represent the dominant factor suppressing U.S. tornado activity in August 2026 relative to climatology. NOAA data place the 1991–2020 August average at 81 confirmed tornadoes, with El Niño episodes typically reducing counts through altered jet stream patterns and lower convective available potential energy across the Great Plains and Midwest. Trader consensus at 50% across sub-170 buckets, versus just 4% for 170+, aligns with this signal and recent below-average months like August 2025 (42 reports). Short-term model runs and MJO influences introduce modest uncertainty around the 40–99 range, but no major pattern shifts are anticipated before the month begins.
This market will resolve according to the number of tornadoes recorded in the United States during the specified month, based on the monthly count published on the National Centers for Environmental Information U.S. Tornadoes Time Series page (see: https://www.ncei.noaa.gov/access/monitoring/tornadoes/time-series).
Only tornadoes appearing in the final NCEI dataset for that month will count.
As of market creation, the relevant report is scheduled to be released on September 9, 2026, at 5:01 PM GMT+1 or 11:00 AM ET (Release schedule: https://www.ncei.noaa.gov/access/monitoring/dyk/monthly-releases). The market will resolve based on the first relevant tornado count published on the NCEI tornado time-series page after this scheduled release time.
If the value published after this scheduled release time is labeled preliminary, it will still determine resolution, and the market will resolve independently of any subsequent revisions, corrections, or retroactive adjustments.
The market will not resolve based on any preliminary values published before the scheduled release time.
If no data is published by the scheduled release time, or if the NCEI website is temporarily unavailable, this market will remain open until that data is made available. If the relevant data is not made available by the date of the next scheduled publication ET, this market will resolve based on available data for the most recent prior month. If the NCEI website becomes permanently unavailable, this market will resolve using another credible source.
Only tornadoes appearing in the final NCEI dataset for that month will count.
As of market creation, the relevant report is scheduled to be released on September 9, 2026, at 5:01 PM GMT+1 or 11:00 AM ET (Release schedule: https://www.ncei.noaa.gov/access/monitoring/dyk/monthly-releases). The market will resolve based on the first relevant tornado count published on the NCEI tornado time-series page after this scheduled release time.
If the value published after this scheduled release time is labeled preliminary, it will still determine resolution, and the market will resolve independently of any subsequent revisions, corrections, or retroactive adjustments.
The market will not resolve based on any preliminary values published before the scheduled release time.
If no data is published by the scheduled release time, or if the NCEI website is temporarily unavailable, this market will remain open until that data is made available. If the relevant data is not made available by the date of the next scheduled publication ET, this market will resolve based on available data for the most recent prior month. If the NCEI website becomes permanently unavailable, this market will resolve using another credible source.
Volume
$566End Date
Sep 1, 2026Market Opened
Jul 28, 2026, 1:44 PM ETResolver
0x69c47De9D...Current El Niño conditions, now established and strengthening toward an OND peak, represent the dominant factor suppressing U.S. tornado activity in August 2026 relative to climatology. NOAA data place the 1991–2020 August average at 81 confirmed tornadoes, with El Niño episodes typically reducing counts through altered jet stream patterns and lower convective available potential energy across the Great Plains and Midwest. Trader consensus at 50% across sub-170 buckets, versus just 4% for 170+, aligns with this signal and recent below-average months like August 2025 (42 reports). Short-term model runs and MJO influences introduce modest uncertainty around the 40–99 range, but no major pattern shifts are anticipated before the month begins.
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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