According to the Japan Meteorological Agency, radar analysis showed that about 100 mm of torrential rain fell in the area around Itabashi Ward and Nerima Ward in Tokyo, and around Asaka City and Wako City in Saitama Prefecture in the hour leading up to 6:30 pm on the 31st, and a “record short-term heavy rainfall information” was issued. The risk of a disaster is imminent, and the Japan Meteorological Agency is calling for people to ensure their safety.
Source: Japanese