Japan’s Meteorological Agency has issued an “imminent heavy rain warning” for the Kumamoto and Aso regions of Kumamoto Prefecture, predicting the rapid development of a linear rainfall band. This band of thunderstorms is expected to bring extremely heavy rainfall within the next three hours. Authorities warn of a significantly increased risk of landslides and flooding, posing a threat to life. Residents in vulnerable areas, particularly near cliffs and rivers, are urged to monitor evacuation orders from local authorities and assess surrounding conditions. The agency emphasizes the potential for rapidly deteriorating conditions due to the concentrated rainfall. This warning signifies an exceptionally high probability of severe weather impacts. Residents are advised to prioritize safety and heed official guidance.