WeatherMulti-outcomeExpires May 10, 2026

Will 320 to 350 tornadoes occur in the United States in April 2026?

Probability

19¢

1h

+0.0pp

24h

-0.2pp

24h Vol

$0.00

Liquidity

$242.27

Probability (last 7 days)

-13.7pp 7d
Apr 18, 2026, 20:00Apr 25, 2026, 18:07
updated 0s ago·src:Polymarket CLOB

Why did it move?

Structured · 2 factors
  1. 1

    Resolution-risk signal firing

    Expires in 342h with open resolution ambiguity.

  2. 2

    Wide spread — 31.2¢

    Bid-ask spread is wide enough that intraday moves overstate any tradeable edge. Most of the headline pp move would be eaten by spread on a market order.

What to track next

  • Verify the resolution source on this page — exchange feed, official release, news consensus — before treating any move as new information.

Verification actions only — never trade recommendations.

Each factor is grounded in a single named metric you can verify on this page — probability, volume, liquidity, signal, resolution state. No predictions, no prose hallucinations.

Timeline

critical · price · trade flow

Critical

  • 0s agoResolve

    Market resolves in 341.9h

    LOW
  • 18:07Signal

    Resolution risk

    Expires in 342h with open resolution ambiguity.

    LOW

Price movement

-0.4pp over the last 24h, now 19¢.

Biggest hourly move: +6.4pp at 2d ago (to 25¢).

Show all 21 hour-by-hour ticks
  • 04:00 · -3.8pp → 19¢
  • 01:00 · -3.9pp → 19¢
  • 22:00 · -4.4pp → 19¢
  • 1d ago · -3.5pp → 19¢
  • 1d ago · -4.5pp → 19¢
  • 1d ago · -4.7pp → 19¢
  • 1d ago · -4.3pp → 19¢
  • 1d ago · -3.5pp → 19¢
  • 1d ago · -4.0pp → 19¢
  • 1d ago · -3.3pp → 19¢
  • 2d ago · +6.4pp → 22¢
  • 2d ago · +6.4pp → 25¢
  • 2d ago · +4.5pp → 25¢
  • 2d ago · +3.3pp → 25¢
  • 2d ago · +5.3pp → 25¢
  • 2d ago · +3.6pp → 18¢
  • 2d ago · +4.0pp → 18¢
  • 2d ago · +4.7pp → 21¢
  • 2d ago · -4.8pp → 21¢
  • 2d ago · -5.6pp → 20¢
  • 2d ago · +3.7pp → 20¢
updated 0s ago·src:Polymarket CLOB·Polymarket Data

Active signals

Recent Trades

No recent trades visible from the Data API for this market.

updated 0s ago·src:Polymarket Data

Market Description

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 May 8, 2026, at 5:00 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.

Resolution & Risk

LOW risk
End date
May 10, 2026
UMA status
n/a
Resolution source
to the number of tornadoes recorded in the United States during the specified month, based on the monthly count publisheAmbiguous wordingextracted · low
ncei.noaa.gov
Market type
Multi-outcome (neg-risk)
  • Part of a multi-outcome event (neg-risk): only one market can resolve YES.
  • Wide spread (31.2¢) — liquidity risk on entry/exit.
Read full market rules on Polymarket

Alerts

¢
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