According to the Japan Meteorological Agency (JMA), Koto Ward, located in Tokyo, Japan, experienced an extraordinary downpour early in the morning. Radar analysis indicated that approximately 100 millimeters (about 4 inches) of rain fell within just one hour, up until 6:30 AM.
This level of rainfall poses a significant risk of disasters, leading the JMA to issue a “Record Short-Term Heavy Rain Information” alert. They are urging residents to take necessary precautions to ensure their safety.
Source: www3.nhk.or.jp