Overview
- The Japan Meteorological Agency reported on Thursday that rainbands have formed in five Kyushu prefectures — Fukuoka, Kumamoto, Nagasaki, Oita and Saga — producing extremely intense, localized downpours.
- Meteorologists recorded more than 100 mm of rain in three hours on the island of Tsushima and hourly rates above 60–80 mm in parts of Kumamoto, Saga and Nagasaki, with some areas seeing over 200 mm in 24 hours.
- The agency warned that over the 24 hours through 6 p.m. Thursday totals could reach 150 mm in parts of Shikoku and northern and southern Kyushu, 120 mm in the Kinki region, and 100 mm in Kanto-Koshinetsu.
- Forecasters say the stalled front and linked low-pressure systems are expected to move eastward across Honshu through Thursday, which could spread heavy rain and thunderstorms into western and central regions.
- Local authorities have been urged to prepare for landslides, river overflows, flooding in low-lying areas and strong winds with possible tornadoes, and residents should monitor advisories and ready evacuation plans due to saturated soils from earlier storms.