Typhoon No. 6 made landfall in Wakayama Prefecture at approximately 4:30 JST on June 3, 2026 [1].
The storm brought record-breaking precipitation to the Kanto region, disrupting critical infrastructure and leaving thousands of commuters stranded during the morning rush.
Tokyo recorded 105 mm of rain in a three-hour period ending at 10:20 JST [1]. This figure represents the highest June total on record for the city [1]. The intense rainbands and strong winds resulted in road flooding and swelling rivers throughout the region [1, 2].
In Inagi, near the Keio Yomiuri Land Station, and across Kawasaki and Yokohama, the storm caused significant transport delays [1, 2]. Local residents and commuters expressed anxiety over the stability of the rail network. A job seeker said, "I left about two hours early. The trains have stopped, and I am worried about whether I can get home" [1].
Field reports described a severe downpour. A reporter for TBS NEWS DIG said, "The rain is falling as if it is being beaten hard against the ground" [1]. The impact was visible in commercial districts where water levels rose quickly. A photographer said that water depth had reached below the knee and that people appeared to be struggling [1].
The storm's effects extended to basic utilities. In Ome City, approximately 1,800 households were expected to experience water outages or a reduction in supply [2].
Emergency services and local authorities monitored river levels as the system moved through the Kanto region, focusing on areas that have historically suffered from severe inundation [1, 2].
“Tokyo recorded 105 mm of rain in a three-hour period... the highest June total on record.”
The record-breaking rainfall in Tokyo highlights the increasing vulnerability of Japan's urban infrastructure to extreme weather events. When a single storm produces the highest June total on record, it tests the limits of city drainage systems and the resilience of the rail network, which remains the primary artery for millions of commuters in the Kanto region.
