Key Facts
• Hita City, Oita, experienced record-breaking rainfall of 117 mm in one hour.
• A linear rainband formed in western Oita Prefecture on the night of August 10, 2025.
• Emergency safety alert (Level 5) issued for 10,000 households, affecting 23,000 residents.
• Residents reported being unable to leave their homes due to the intensity of the rain.
• Landslide warnings issued for seven municipalities in Oita Prefecture.
• Authorities warn of continued heavy rain, landslides, and river flooding risks.
Summary
Hita City in Oita Prefecture has been hit by unprecedented rainfall, recording 117 mm in just one hour, the highest ever observed in the area. A linear rainband formed on the night of August 10, 2025, prompting authorities to issue a Level 5 emergency safety alert for 10,000 households, affecting 23,000 residents. Some residents reported being unable to evacuate due to the extreme downpour. Landslide warnings have been issued for seven municipalities, and officials caution that the risk of heavy rain, landslides, and river flooding remains high.
