Japan extreme weather updates show that at least four people died in eastern Japan following unprecedented heavy rainfall that trapped thousands of travelers overnight at Narita Airport and paralyzed regional rail networks, according to disaster management officials. The severe storm system struck on Thursday evening, triggering widespread landslide warnings and knocking out power supplies across the Chiba prefecture.
Chiba Prefecture Records First-Ever Extreme Rain Warnings
Local authorities issued their highest-level heavy rain warning for Chiba prefecture for the first time on record as torrential downpours battered the region. According to the Chiba Prefectural Disaster Management Office, the storm claimed the lives of four individuals in its immediate aftermath. Victims included a man aged in his 60s or 70s found floating on a flooded roadway, and a 66-year-old woman trapped inside her submerged vehicle in Kashiwa.
Two additional fatalities included a man of unknown age found unresponsive on a street and another person whose age and gender officials had not yet identified. By Friday afternoon, public broadcaster NHK reported two more deaths, bringing the total statewide death toll to six.
Thousands Stranded at Narita Airport As Rail Services Halt
An estimated thousands of passengers and tourists spent the night stranded at Narita Airport, one of the primary aviation hubs serving Tokyo, after train services to and from the facility were canceled. Terminal floors filled with makeshift bedding and sleeping bags as travelers formed massive lines for check-in counters. A British tourist identified as Philip told Agence France-Presse that his journey required nine hours of travel, including a taxi ride, just to reach the airport on Friday morning.
Outside the aviation hub, transportation networks faced severe disruptions. Hundreds of commuters and travelers remained stuck at regional stations across Chiba as operators suspended rail lines indefinitely. Social media reports and local coverage indicated that airport staff distributed emergency supplies, including drinking water, food, and sleeping bags, to stranded passengers.
Infrastructure Damage and Power Outages Across Eastern Japan
Almost 26,000 households across Chiba prefecture lost electricity during the storm, according to disaster management figures. Floodwaters inundated at least 45 homes in municipal areas such as Ichikawa, Kashiwa, and Sakura, while another 39 properties suffered from sub-floor water seepage. Officials from the Japan Meteorological Agency stated during a Thursday press briefing that the precipitation levels carried the potential for unprecedented accumulation.
Frequently Asked Questions
How many people died in the heavy rain in Japan?
According to NHK and the Chiba Prefectural Disaster Management Office, six people died following the severe storms in eastern Japan.

How many travelers were stuck at Narita Airport?
Roughly thousands of people were stranded overnight at Narita Airport after regional train lines were suspended.
What areas were most affected by the flooding?
Chiba prefecture bore the brunt of the storm, with severe flooding and power outages reported in Ichikawa, Kashiwa, and Sakura.
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