More than double that number came down – the Hong Kong Observatory said 158.1 mm (6.2 inches) of rain fell at its headquarters between 11pm and midnight, according to the South China Morning Post.
Justin: Hong Kong just recorded the heaviest hourly rainfall with 158.1 mm [6.2 inches] between 11pm and midnight (HKT). Records date back to 1884 (139 years ago). A rare “Black Rainstorm Warning Sign” has been issued by the HKO observatory. pic.twitter.com/KWtyWbqUmd
— Nahel Belgherze (@WxNB_) September 7, 2023
In other parts of Hong Kong – Kowloon, the northeastern New Territories and Hong Kong Island – more than 200 mm (7.87 inches) of rain was recorded between 6pm and midnight, the newspaper said.
Photos and video shared on social media showed flooded streets and submerged subway stations.
The city government will announce on Friday morning whether it is safe to use roads and public transport and whether offices and schools will be allowed to open.
Heavy rain was also reported in southern China, including Shenzhen, which was reported to be ready to release water from its reservoirs, which could worsen flooding. in parts of northern Hong Kong.
The region has been hit by two typhoons in two weeks, with Saola and Haikui wreaking havoc across southern China and Taiwan.
