Typhoon 15 is forecast to make landfall in the Kanto region on Tuesday afternoon [1].
The storm's arrival poses a significant risk to millions of residents in eastern Japan, with officials warning of potential landslides, flooding, and severe transportation disruptions.
According to the Japan Meteorological Agency, the typhoon was moving northwest at approximately 20 kilometers per hour [4] as of Monday evening. The storm is following an unusual trajectory, approaching Honshu from the east sea [5].
Meteorologists warn that the system is powerful and likely to bring dangerous conditions to the Kanto-Koshin region, with Ibaraki Prefecture identified as a high-risk area [1, 6]. The Japan Meteorological Agency said the storm's central pressure was 990 hPa [4].
Heavy precipitation is expected across the Tohoku and Kanto-Koshin regions, with some areas potentially receiving 150 millimeters of rain within 24 hours [7]. Wind speeds are also a primary concern. While some reports cite maximum instantaneous wind speeds of 30 meters per second [4], other forecasts indicate speeds could reach 35 meters per second in Kanto and Tohoku [7].
"Typhoon 15 is likely to approach Kanto and Tohoku closely tomorrow, the 11th, and there is a risk of landfall," tenki.jp said [3].
Local authorities are urging residents to prepare for the storm's arrival on Tuesday afternoon [1]. The combination of an unusual path and high intensity increases the likelihood of unexpected impacts in areas that may not typically prepare for direct hits from this direction.
“Typhoon 15 is forecast to make landfall in the Kanto region on Tuesday afternoon.”
The unusual westward trajectory of Typhoon 15 from the east sea suggests a deviation from standard seasonal patterns. Because the storm is maintaining significant strength—indicated by the 990 hPa central pressure—the risk of flash flooding and landslides in the Kanto-Koshin region is elevated, potentially overwhelming local drainage systems not designed for this specific storm path.
