Key Facts
• June 22: Rainfront shifts southward, expanding rain areas across Japan.
• Northern Japan, China region, and northern Kyushu face risk of intense localized rain.
• Hokkaido: Weak rain intensifies by evening, with heavy rain expected through June 22 morning.
• Active rain clouds may bring intermittent heavy rain to Hokkaido and northern Tohoku.
• Northern Kyushu and China region: Risk of over 50mm/hour rainfall due to unstable atmosphere.
• Southern Kyushu and Shikoku Pacific side may also see intensified rain from moist air.
• Caution advised for road flooding and sudden river level rises in affected areas.
Summary
A rainfront is moving southward, expanding rain coverage across Japan through June 22. Northern Japan, the China region, and northern Kyushu are at risk of intense localized rainfall, with Hokkaido expecting heavy rain through the morning. Rain clouds will shift to northern Tohoku during the day. In northern Kyushu and the China region, unstable atmospheric conditions may lead to rainfall exceeding 50mm per hour, posing risks of road flooding and river surges. Southern Kyushu and Shikoku’s Pacific side may also experience intensified rain due to moist air. Residents in affected areas are urged to remain cautious.
