Sep 8, 2026COREDisaster
Nagoya Records 104.5 mm of Rain in One Hour
Tokai TV News ONE report on Nagoya's record hourly rainfall of 104.5 mm, its causes, and local flooding conditions
東海テレビ ニュースONE
As linear rainbands formed, Nagoya recorded a maximum one-hour rainfall of 104.5 mm and a daily total of 219.5 mm. The hourly figure was the highest since observations began in 1890 and exceeded the 97 mm recorded during the 2000 Tokai flood.
Sources
- Nagoya Records Its Heaviest Rainfall as Linear Rainbands Form over Aichi and GifuウェザーニュースJANews article
- Daily Weather Observations for Nagoya, Aichi, September 2026Japan Meteorological AgencyJADataset
- Emergency Stormwater Improvements Following the Tokai Flood and Other Heavy Rains名古屋市上下水道局JAGovernment document
Included in this issue
OngoingEnvironment · Society · 2026
Record Rainfall and Urban Flooding in Nagoya
Tracks the September 2026 disaster in which linear rainbands brought the heaviest one-hour rainfall on record to Nagoya, flooding urban roads and railway tracks and paralyzing public transport. A Level 5 flood emergency warning was issued for the Shonai River, followed by evacuations, preliminary damage assessments, a warning downgrade and recovery operations.
5 records9 sources
View full timeline