Will a tropical cyclone make landfall on Honshu in August 2026?
Probability
99¢
1h
+0.1pp
24h
+2.4pp
24h Vol
$115.26
Liquidity
$385.08
Canonical status
confidence: highSource status (Polymarket)
Derived status (Orrery)
Reason
YES price is near 100¢ but the market has not been officially resolved.
Treat as effectively priced-in, not settled. The market is still live until expiry.
Resolution & Risk
LOW risk- End date
- Sep 1, 2026
- UMA status
- n/a
- Resolution source
- Market type
- Binary
- No obvious resolution-risk signals in metadata.
Probability (last 7 days)
+0.0pp 7dWhy did it move?
Structured · 2 factors- 01Price move
Up 2pp over 24h
Now 99¢; +0.1pp in the last hour.
- 02Liquidity
Thin liquidity
Only $385 of visible book — small orders can move the line. Treat the probability as a soft estimate.
What to track next
- Set an alert at the next ±5pp probability move so you find out before the next leg.
- Add to your watchlist — Home will show probability deltas since your last visit.
- Compare against sibling markets in the same event below — divergent pricing across related contracts is the cleanest tell.
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.
Resolution & Risk
LOW risk- End date
- Sep 1, 2026
- UMA status
- n/a
- Resolution source
- Market type
- Binary
- No obvious resolution-risk signals in metadata.
Verification Brief
A guided checklist for what must be proven before this market is treated as reliable context.
The price is pinned near a rail, but price is not settlement. Verify the official status before treating it as final.
Create trust-state alertVerification goal
Map resolution-relevant sources to the exact criteria needed to avoid misreading price as settlement.
What needs proof
Primary source
requiredConfirm the primary news consensus source and whether it directly answers the market's resolution question.
Current evidence: credible reporting
Contract wording
requiredExtract the exact condition that makes YES resolve true and note any exclusions, time zone, deadline, or fallback rule.
Price is not settlement
requiredVerify whether the market is officially resolved or merely pinned near 0¢/100¢.
Current evidence: 99¢ current price
Orrery verification task Will a tropical cyclone make landfall on Honshu in August 2026? State: Pinned near YES — price pinned not settled Need sources for: 1. Primary source: Confirm the primary news consensus source and whether it directly answers the market's resolution question. 2. Contract wording: Extract the exact condition that makes YES resolve true and note any exclusions, time zone, deadline, or fallback rule. 3. Price is not settlement: Verify whether the market is officially resolved or merely pinned near 0¢/100¢. Drop only durable links that map to one criterion. Research only. Not trade advice.
Orrery verification brief Will a tropical cyclone make landfall on Honshu in August 2026? State: price pinned not settled Verify: Primary source + Contract wording Price is not settlement. Research only. Not trade advice.
Market link goes in reply
A controlled loop for durable sources. Every source must answer one criterion from this Verification Brief.
Sources
0
Criteria covered
0
Reviewed
0
Awaiting review
0
Submit a source mapped to a criterion
Recent source checks
Pilot audit summary
Research only · Not trade advice · Every source maps to one criterion
Timeline
critical · price · trade flowCritical
- Sep 1, 03:59 UTCScheduled resolutionLOW
Market resolves in 450.8h
Price movement
+2.4pp over the last 24h, now 99¢.
Biggest hourly move: +23.8pp at 06:00 (to 99¢).
Show 4 hourly moves
- 09:00 · +20.1pp → 99¢
- 07:00 · +23.8pp → 99¢
- 06:00 · +23.8pp → 99¢
- 04:00 · +17.8pp → 99¢
Recent Trades
No recent trades visible from the Data API for this market. That usually means liquidity is thin or this market is between event windows.
Related Markets
2Market Description
This market will resolve to "Yes" if a tropical cyclone makes landfall on Honshu, Japan between market creation and August 31, 2026, 11:59:59 PM ET. Otherwise, this market will resolve to "No". A landfall counts only if it occurs within this window; the time of the physical landfall governs, not the time any confirming advisory is issued. A tropical cyclone is a system classified by the Japan Meteorological Agency (JMA) as a tropical storm or stronger, meaning maximum sustained winds (10-minute average) of at least 34 knots (17.2 m/s), in the JMA advisory in effect immediately prior to the landfall. A system classified only as a tropical depression, or as extratropical, dissipated, or absorbed, at that time does not qualify. Landfall means the center of the tropical cyclone's circulation physically crosses the coastline of Honshu. A system whose center crosses the coastline only of Hokkaido, Kyushu, Shikoku, Okinawa, the Ryukyu Islands, or any smaller island, or that passes over or near Honshu without its center crossing the Honshu coastline, does not qualify. The primary resolution source for this market will be the Japan Meteorological Agency's position advisories (https://www.jma.go.jp/bosai/map.html#contents=typhoon&lang=en). If a JMA advisory plots the storm's center over Honshu, this market resolves "Yes" regardless of what other sources say. If no JMA advisory plots the center over Honshu but credible international news reporting confirms a crossing occurred between discrete advisory fixes, this market resolves "Yes", with classification taken from the most recently issued JMA advisory prior to the confirmed crossing time. Where a JMA advisory and credible reporting make contradictory claims about the storm's position at the same point in time, JMA is the default resolution source. Once a qualifying landfall is reported, this market may remain open for up to 36 hours to establish confirmation, after which it will resolve according to the latest JMA data. This market may resolve based on the initial JMA advisory reporting a qualifying landfall regardless of any later advisory, retraction, best-track revision, or reanalysis that changes the storm's classification or position at the time of landfall.
Why this category?
confidence: lowCategory
Source
Reason
No override, sports marker, rule, or upstream hint matched. Market is unclassified — the keyword rules need an entry for this topic.
Categories come from a deterministic engine: manual overrides (highest priority) → sports hard markers → event-tag rules → keyword rules → Gamma category hint → default. The engine is versioned in category-overrides.ts; methodology lives at /methodology.
FAQ — questions readers actually ask
What is the current Polymarket probability for "Will a tropical cyclone make landfall on Honshu in August 2026?"?
As of Thu, 13 Aug 2026 09:10:30 GMT, YES is priced at 99% implied probability on Polymarket. The price changed +2.4pp in the last 24 hours, +0.1pp in the last hour, and +0.0pp in the last 7 days.
When does this market resolve?
This market resolves by Sep 1, 2026 (2026-09-01T03:59:00.000Z). Resolution is determined from the market description on Polymarket.
What source determines the outcome?
Resolution is sourced from the market description on Polymarket. Polymarket's UMA optimistic oracle is the final settlement layer; if the published source is ambiguous, UMA tokenholders adjudicate. Source-extraction confidence is shown in the Resolution & Risk block above.
How much is being traded on this market?
$115.26 of trading volume in the last 24 hours. Lifetime volume on Polymarket: $1.2K. Open liquidity in the YES/NO orderbooks: $385.08. Spread between best bid and best ask: 1.2¢.
Is this a trade recommendation?
No. Orrery describes — never predicts. Every signal on this market carries explicit Evidence, Backtest, and Action tiers. The Action is always one of: Watch only, Inspect timeline, Create alert, Verify source, or Ignore — never Buy or Sell. The probability above is the market's collective implied probability, not a forecast Orrery is publishing.
How fresh is this data and where does it come from?
This page revalidates from the public Polymarket APIs every 30 seconds. Probability and 24h-change come from Gamma; the chart series comes from the CLOB orderbook history; trade and holder data come from the Data API. The fetched-at timestamp on each block tells you exactly how old the underlying upstream pull was.
Alerts
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