Torrential rain hit parts of Tokyo, Japan, on Wednesday, August 21, triggering flash flooding across the city, including in the metro system.Footage filmed and posted to X by @Maxi_raiden shows water gush from a manhole in the Shinjuku area of the city on Wednesday night local time.NHK, citing the Japan Meteorological Agency, said the downpours came as the region was “experiencing extremely unstable atmospheric conditions due to rising daytime temperatures and warm, humid air.” Credit: @Maxi_raiden via Storyful