Record-breaking rainfall east of Tokyo overnight triggers flooding across parts of the region, submerging roads, homes, and some railway areas. At least four people die and one person is reported missing, with power outages also reported. Thousands of residents are stranded, including people who remain overnight at major transport hubs.
Japanese authorities downgrade the most severe heavy-rain warning for more than a dozen municipalities in Chiba as the rain eases in the morning, while still forecasting additional rain later in the day. Footage shows muddy water flooding cars and track segments, indicating significant damage. The Ground Self-Defense Force dispatches buses to evacuate about 4,000 people stranded overnight at Soga train station, which is also used by travelers heading to Tokyo Disney, where no damage is reported.
At Narita airport, trains servicing the Tokyo area are stopped during the worst conditions, leaving thousands stranded overnight. One outlet highlights that services partially resume Friday with delays, and that flights into and out of Narita operate normally as many people return home.