According to the Japan Meteorological Agency, it seems that about 120 mm of heavy rain fell in the vicinity of Kamibayashi, Murakami City and Arakawa, Murakami City in Niigata Prefecture, according to radar analysis.
In addition, near Nakajo, Tainai City, Niigata Prefecture, it is believed that about 100 mm of torrential rain fell in one hour until 1:30 a.m., according to radar analysis.
Due to the imminent danger of a disaster occurring, the Japan Meteorological Agency is calling for announcing "record-breaking short-term heavy rain information" to ensure safety.