According to reports from Japan's Kyodo News, BBC, and other media outlets, record-breaking heavy rains struck eastern Japan. As of the 14th, the number of deaths has increased to 8.
This "unprecedented" rainstorm caused power cuts in more than 20,000 households in Chiba Prefecture, and about 7,000 people were stranded at Tokyo Narita Airport overnight.
The Japan Meteorological Agency issued a severe rain and geological disaster level 5 special alert on Chiba City and other areas from the evening of the 13th to the early morning of the 14th.
The Japan Meteorological Agency stated that the recent heavy rain was caused by the combination of warm and humid air flowing into eastern Japan with cold air from above, resulting in extremely unstable atmospheric conditions. It is expected that the rainfall will continue until later in the evening of the 14th.