Typhoon 15 is threatening to make landfall in the Kanto region, bringing risks of strong winds and heavy rainfall to eastern Japan.
The storm's trajectory puts major population centers, including Tokyo and Kanagawa, at risk of severe flooding and infrastructure disruption. Local authorities are monitoring the potential for linear precipitation zones, which can cause concentrated, torrential rain over a short period.
The storm first made landfall near Sukumo City in Kochi Prefecture around one a.m. on Aug. 5 [1]. It subsequently made a second landfall in northern Wakayama Prefecture around nine a.m. that same day [2]. After crossing the Kii Peninsula, the typhoon began moving north along the southern coast toward the Kanto region [2].
Meteorologists warn that the storm may bring intense wind and rain as it approaches the southern coast of Kanto. There is a specific concern regarding the formation of linear precipitation zones, stationary bands of heavy rain that often lead to flash flooding, in the Tokyo and Kanagawa areas [1].
The impact of the system extends beyond the Kanto region. Heavy rain warnings have been issued for parts of the Tohoku region, where the storm's outer bands are expected to trigger significant precipitation [1].
Emergency services have urged residents in the affected coastal and mountainous areas to remain vigilant. The combination of the storm's path across Shikoku and the Kii Peninsula has maintained the system's strength as it pushes toward the capital [2].
“Typhoon 15 is threatening to make landfall in the Kanto region.”
The movement of Typhoon 15 from Kochi and Wakayama toward the Kanto region indicates a path that maximizes the risk for Japan's most densely populated urban corridor. The mention of linear precipitation zones is particularly critical, as these weather patterns often bypass standard rainfall predictions and cause sudden, catastrophic flooding in urban drainage systems.



