TOTAL VOLUME:
$134.2b
24H VOL:
$126,324,530
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,434,646,834
406,019
Markets across
30,401
events
MATCHED EVENTS:
2,689
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jun 30, 11:59 PM EST
Kalshi
This event group predicts the total number of tornadoes that will occur in the United States during June 2026. Kalshi offers binary yes/no markets at multiple threshold levels, while Polymarket offers categorical range-based markets and a tail event market. Both platforms will resolve based on the official NCEI U.S. Tornadoes Time Series dataset.
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 July 9, 2026, at 5:01 PM GMT+1 or 11:01 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.
If the preliminary number of tornadoes in Jun is above 25 , then the market resolves to Yes. If the preliminary number of tornadoes in Jun is above 50 , then the market resolves to Yes. If the preliminary number of tornadoes in Jun is above 75 , then the market resolves to Yes. If the preliminary number of tornadoes in Jun is above 100 , then the market resolves to Yes. If the preliminary number of tornadoes in Jun is above 125 , then the market resolves to Yes. If the preliminary number of tornadoes in Jun is above 150 , then the market resolves to Yes. If the preliminary number of tornadoes in Jun is above 175 , then the market resolves to Yes. If the preliminary number of tornadoes in Jun is above 200 , then the market resolves to Yes. If the preliminary number of tornadoes in Jun is above 225 , then the market resolves to Yes. If the preliminary number of tornadoes in Jun is above 250 , then the market resolves to Yes. If the preliminary number of tornadoes in Jun is above 275 , then the market resolves to Yes.
On Kalshi, the Number of tornadoes in Jun 2026 market is priced as a binary contract on whether more than 225 tornadoes will occur in June. Polymarket and Kalshi can show different implied probabilities for the same outcome because of liquidity, fee structure, participant mix, and how each venue defines the contract. Traders buy or sell shares at prices between 0 and 100 cents, where each cent reflects a 1% probability increment. The current market price reflects the collective assessment of all active traders. As new information about atmospheric conditions or seasonal patterns emerges, the price adjusts in real time. Volume and liquidity on Kalshi determine how easily you can enter or exit positions at competitive rates.
Key drivers include updated seasonal climate forecasts from NOAA, El Niño or La Niña conditions, observed sea-surface temperatures, and atmospheric pattern shifts heading into spring and early summer 2026. Historical tornado activity in May and early June can signal whether conditions are primed for an active or quiet month. Major weather events or anomalies in the months leading up to June may shift trader expectations about atmospheric instability. Real-time weather data, jet-stream positioning, and soil moisture levels closer to June will also influence market pricing as traders refine their probability estimates.