Typhoon Dujuan reaches Ogasawara as 96 km/h gust is recorded and further strengthening is forecast
September 18, 2026, evening update: Typhoon Dujuan is now producing confirmed wind impacts on Japan’s Ogasawara Islands. Chichijima recorded a maximum gust of 26.7 m/s at 12:52 local time on Friday, equivalent to roughly 96 km/h. The observation marks a clear shift from an approaching threat to an active weather event for the remote island group.
The Korea Meteorological Administration analysed Dujuan at 975 hPa at 12:00 UTC on Friday, with maximum sustained winds near 115 km/h. The centre was near 25.6°N, 141.6°E and moving west at around 26 km/h. Japanese weather reports later placed the centre roughly 200 kilometres south-southwest of Chichijima.
Large wind field and dangerous seas
Dujuan has a broad circulation, with strong winds extending far beyond its core. That matters for the Ogasawara Islands because hazardous conditions can occur even when the storm centre remains well offshore.
Severe weather is expected to continue into Saturday. Japanese forecasts warn of further strong gusts and seas exceeding seven metres around the islands. Exposed coasts, harbours and marine routes are the main immediate concerns, while heavy rain may also create local flooding and slope hazards.
Dujuan is forecast to strengthen further
KMA’s latest forecast takes Dujuan to around 126 km/h sustained winds and approximately 970 hPa on Saturday. Those numbers are forecast values, not yet observed intensity. The storm is expected to move west to west-northwest before gradually turning north.
That change in track is crucial for Japan’s next phase of risk. Forecast guidance brings Dujuan toward the Izu island chain and potentially closer to the Kanto region around Sunday and Monday, but the exact distance from the main Japanese islands still depends on when the turn occurs.
Rain may reach Kanto before the storm centre
Japanese forecasts also indicate that an autumn rain front could become more active ahead of Dujuan. Parts of coastal Kanto may see intense rainfall on Sunday, with local rates above 30 mm per hour possible before the typhoon centre makes its closest approach.
This does not mean a direct landfall on mainland Japan is confirmed. The observed facts at this stage are the 96 km/h gust on Chichijima, Dujuan’s analysed intensity near 115 km/h and the ongoing rough conditions around Ogasawara. A stronger typhoon near the Izu Islands and Kanto remains a forecast scenario and should be described as such.
Dujuan will remain a high-priority western Pacific system overnight. The next key signals will be whether it reaches the forecast 126 km/h intensity, how quickly it turns north, and how close the core comes to the Izu Islands and the populated Pacific side of Japan.