Super Typhoon Dolphin, currently a Category 4–5 system with sustained winds near 145–160 mph at roughly 20°N 158°E, is steered northwest then westward by a building subtropical ridge. Official Joint Typhoon Warning Center and model guidance show the storm passing near the Ogasawara Islands as a strong typhoon around August 3 before continuing toward the Ryukyu chain and East China Sea waters south of Kyushu by August 6. While the core is projected to remain south of mainland Japan, the uncertain translation speed and exact ridge positioning create a narrow window for the circulation or outer bands to affect southern Japanese islands, supporting the 56.5% market-implied probability for a “hit.” New model runs and National Meteorological Agency updates expected in the next 48 hours will refine this track.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedWill Super Typhoon Dolphin hit Japan?
$16,468 Vol.
$16,468 Vol.
$16,468 Vol.
$16,468 Vol.
JMA position advisories are the primary resolution source. If a JMA advisory plots the center on Japanese land, the market resolves "Yes" regardless of what other sources say. If no JMA advisory plots the center on land but credible reporting confirms a crossing occurred between discrete advisory fixes, the market resolves "Yes." A disagreement exists only when a JMA advisory and credible reporting make contradictory claims about the storm's position at the same point in time; in that case, JMA is the default resolution source. In all cases, the classification is taken from the most recently issued JMA advisory prior to the confirmed crossing time.
This is a purely geographic criterion: the storm's center must pass over Japanese land, regardless of whether JMA formally designates the event as "landfall" or "passage." The most recently issued JMA advisory prior to the crossing must classify Dolphin as a tropical cyclone (tropical depression or higher). If that advisory classifies the system as extratropical, dissipated, or absorbed, the crossing does not count and the market will resolve to "No".
This market resolves "No" if Dolphin has been declared extratropical, dissipated, or absorbed on or before August 15 without having made landfall on Japanese territory, or if no landfall has physically occurred by the close of August 15, 2026.
Market Opened: Jul 30, 2026, 11:53 AM ET
Resolver
0x65070BE91...JMA position advisories are the primary resolution source. If a JMA advisory plots the center on Japanese land, the market resolves "Yes" regardless of what other sources say. If no JMA advisory plots the center on land but credible reporting confirms a crossing occurred between discrete advisory fixes, the market resolves "Yes." A disagreement exists only when a JMA advisory and credible reporting make contradictory claims about the storm's position at the same point in time; in that case, JMA is the default resolution source. In all cases, the classification is taken from the most recently issued JMA advisory prior to the confirmed crossing time.
This is a purely geographic criterion: the storm's center must pass over Japanese land, regardless of whether JMA formally designates the event as "landfall" or "passage." The most recently issued JMA advisory prior to the crossing must classify Dolphin as a tropical cyclone (tropical depression or higher). If that advisory classifies the system as extratropical, dissipated, or absorbed, the crossing does not count and the market will resolve to "No".
This market resolves "No" if Dolphin has been declared extratropical, dissipated, or absorbed on or before August 15 without having made landfall on Japanese territory, or if no landfall has physically occurred by the close of August 15, 2026.
Resolver
0x65070BE91...Super Typhoon Dolphin, currently a Category 4–5 system with sustained winds near 145–160 mph at roughly 20°N 158°E, is steered northwest then westward by a building subtropical ridge. Official Joint Typhoon Warning Center and model guidance show the storm passing near the Ogasawara Islands as a strong typhoon around August 3 before continuing toward the Ryukyu chain and East China Sea waters south of Kyushu by August 6. While the core is projected to remain south of mainland Japan, the uncertain translation speed and exact ridge positioning create a narrow window for the circulation or outer bands to affect southern Japanese islands, supporting the 56.5% market-implied probability for a “hit.” New model runs and National Meteorological Agency updates expected in the next 48 hours will refine this track.
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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