Will a tropical cyclone make landfall on Honshu in August 2026?
·Climate and Weather
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.
