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Record Rainfall in Chiba Leaves Thousands Stranded at Narita Airport and Claims Four Lives

8/14/2026, 6:00:06 AM

Flooding Crisis at Narita Airport

On August 14, record-breaking rainfall inundated parts of Chiba prefecture, the area bordering Tokyo, causing widespread flooding that crippled transport links around Narita International Airport. The deluge forced the closure of major highways, suspended several rail services and left roughly 7,000 travelers unable to leave the terminal. Airport officials said flights were expected to operate normally, though some delays were reported.

Background and Holiday Context

The storm struck during one of Japan’s busiest holiday weeks, amplifying its impact on commuter and travel traffic. The heavy rain arrived a day after a tropical storm battered northeastern Japan, which had already caused tree falls and blackouts in the region.

Data and Statistics

  • Rainfall: More than 360 mm fell within a 24-hour period in Chiba.
  • Fatalities: Authorities confirmed four deaths, including at least one person trapped in a submerged vehicle; a fifth person remained missing.
  • Power outages: Reports vary—Tokyo Electric Power Company cited about 27,000 households without electricity in Chiba, Ibaraki and Tochigi; other sources listed 22,000 or nearly 25,000 households affected.
  • Households without power: Nearly 25,000 homes lost electricity according to several outlets.
  • Transport disruption: Major highways linking Narita to central Tokyo were closed, diverting traffic onto secondary routes; several rail lines remained suspended, though some services between Narita and Tokyo resumed later in the morning.

Official Statements and Responses

A Japan Meteorological Agency (JMA) official warned that the rainfall levels were “unprecedented,” prompting the agency to issue its highest-level heavy-rain warning for 14 municipalities in Chiba. The Self-Defense Forces deployed soldiers to assist with evacuation and relief operations, while local government buildings served as temporary shelters equipped with foil blankets.

On-the-Ground Reports

Passengers at Narita were seen queuing for blankets, water bottles and snacks distributed by airport staff. Many families set up makeshift sleeping areas on the terminal floor, and an American traveler told NHK that the experience would be unforgettable. In Chiba city, hundreds sought refuge in government facilities, spending the night under emergency blankets while awaiting power restoration.

Conflicting Reports and Gaps

The primary discrepancy among sources concerns the number of households without electricity: Tokyo Electric Power Company reported about 27,000 outages across three prefectures, while other outlets cited 22,000 or nearly 25,000 households. No source provided a definitive, consolidated figure, leaving the exact scale of the power disruption unclear.

Verbatim Quotes

  • “This case was an extremely unusual situation, even by Japan’s historical weather standards,” — Chiba Governor Toshihito Kumagai
  • “This case was an extremely unusual situation,” — Chiba Governor Toshihito Kumagai