Key Facts
• A low-pressure system is moving northeast over northern Japan by August 8.
• A stationary front is extending across Japan, causing unstable atmospheric conditions.
• Heavy rain expected from northern to western Japan through August 8.
• Predicted 24-hour rainfall (August 7-8):
– Northern Kyushu: 150 mm
– Hokuriku: 100 mm
– Hokkaido, Tohoku, Kinki: 80 mm
• Additional rainfall (August 8-9): Northern Kyushu: 120 mm.
• Linear rainbands may form, increasing localized rainfall risks.
• Hokuriku region (Toyama, Ishikawa) faces high risk of rain-induced disasters until August 7 afternoon.
• Warnings issued for landslides, flooding, and river overflows in Hokuriku and Tohoku.
• Thunderstorms, hail, and tornadoes possible in western to northern Japan through August 9.
• Weather forecast predicts widespread rain across Honshu until August 12, shifting to clearer skies by August 14.
• Authorities urge vigilance for severe weather and disaster preparedness.
Summary
Japan faces significant rainfall as a stationary front and low-pressure system impact the region. Heavy rain is forecasted from northern to western Japan through August 8, with northern Kyushu expecting up to 150 mm of rain. Hokuriku and Tohoku regions are at high risk of landslides and flooding, with linear rainbands potentially intensifying localized rainfall. Thunderstorms, hail, and tornadoes are also possible. Authorities emphasize disaster preparedness and monitoring of weather updates. Rain is expected to persist across Honshu until August 12, with clearer skies anticipated by August 14.
