Torrential rain described as unprecedented has killed at least eight people in Japan and stranded about 7,000 travelers at Tokyo's Narita airport. The storm hit Chiba prefecture and neighboring areas on August 14, 2026, dumping huge amounts of water in a short window. More than 20,000 households lost power. Floodwaters covered roads, farms and homes in low-lying districts.
Record rainfall hits the Kanto region
Meteorologists at the Japan Meteorological Agency said rainfall totals broke local records for August. Some towns recorded more than 300 millimeters of rain in 24 hours. Rivers overflowed their banks, and officials issued evacuation orders for tens of thousands of residents. The storm moved slowly, which allowed rain to pile up over the same areas for hours. The agency warned that landslides remained a danger because the ground was already saturated.
Narita airport becomes a shelter
The storm cut rail links and roads that connect Narita airport to central Tokyo. About 7,000 passengers were stuck inside the terminals overnight. Airlines canceled hundreds of domestic and international flights. Airport staff handed out blankets, water and food, and many travelers slept on the floor. Some passengers described long lines at information desks as they tried to rebook. Rail operators said services would resume gradually once floodwater receded.
Rescuers search flooded neighborhoods
Firefighters and Self-Defense Force troops used boats to reach people trapped in homes. Most of the eight deaths happened when people were caught in fast-moving water or buried in landslides, local officials said. A search continued for at least two missing residents. The prime minister's office set up an emergency response team and promised support for affected communities. Local leaders said the scale of the flooding was beyond anything they had seen in decades.
The disaster has renewed questions about how Japan adapts to stronger rainstorms. Climate scientists say warmer air holds more moisture, which makes extreme rainfall more likely. Japan has invested heavily in flood barriers and drainage systems, but officials admit that even new defenses can be overwhelmed. The cleanup is expected to take weeks, and the full cost of the damage has not yet been counted.