Record rainfall has disrupted life in central Japan, with Nagoya receiving 104.5mm of rain in one hour and authorities issuing the highest Level 5 flood alert in several areas.
The Japan Meteorological Agency (JMA) issued the alert in parts of Aichi and Gifu prefectures, including Nagoya, Seto, Kasugai, Komaki, Ichinomiya, Inazawa, Kiyosu, Kitanagoya, Ama, Tajimi and Toki.
Residents in affected areas have been advised to move to the safest available locations based on local conditions, including higher floors of buildings if necessary.
Nagoya recorded 104.5mm of rainfall in one hour up to 4:53pm local time on Tuesday, the highest hourly rainfall in the city’s history, according to the JMA.
The heavy rain triggered linear rainbands over parts of Aichi and Gifu, which can produce extremely heavy rainfall over the same area for several hours. The JMA warned of flooding and landslides across western and northeastern Japan.
The rain disrupted transport in Nagoya, temporarily halting subway services and affecting parts of the JR Chuo Line. Tokaido Shinkansen services between Tokyo and Nagoya were also disrupted, while some Sanyo Shinkansen services were suspended.
The Aichi prefectural government said four people suffered minor injuries, while about 2,700 people took shelter.
Several areas of Nagoya were flooded, with water entering underground facilities and raising concerns over underpasses, underground shopping areas and car parks.
The heavy rain has also affected preparations for the Asian Games, scheduled to open in Nagoya on September 19, with water entering several venues.
JMA chief forecaster Takuya Hosomi urged residents to move to higher ground and take precautions against flooding.
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