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Parts of Nagoya Left Underwater After Record 104.5mm of Rain Falls in One Hour
Summary by The Tokyo Editorial Desk · Byline on the source page: Matthew Hernon , as published by Tokyo Weekender
· September 9, 2026
· 1 min read
Nagoya was left partially underwater by severe flash flooding after 104.5 millimeters of rain fell in a single hour on Tuesday. It was the highest hourly total recorded since official observations began in 1890. The sudden deluge rapidly overwhelmed local drainage systems, submerging streets and...
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Summary created by The Tokyo Editorial Desk — automated, rule-governed Byline on source page Matthew Hernon, as published by Tokyo Weekender Original story Read at the source Source published Sep 9, 2026 Indexed here Sep 11, 2026 AI assistance Automated summary drawn from the source’s own published text Prepublication human review No — editorial rules, flagged-item review, and published samples
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Key points 5 millimeters of rain fell in a single hour on Tuesday. Nagoya was left partially underwater by severe flash flooding after 104.
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What is this story about? Nagoya was left partially underwater by severe flash flooding after 104.5 millimeters of rain fell in a single hour on Tuesday. It was the highest hourly total recorded since official observations began in 1890. The sudden deluge rapidly overwhelmed local drainage systems, submerging streets and...
When was this published? This article was first published on September 9, 2026 by Tokyo Weekender and curated for The Tokyo readers.
Who reported this story? This story was reported by Matthew Hernon at Tokyo Weekender. To learn more about how The Tokyo selects and reviews stories, see our editorial standards .
Where can I find related coverage? See more News coverage from The Tokyo, or browse our daily briefing and topic hubs .
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