Hong Kong’s weather forecaster has issued an amber rainstorm signal, warning that flash floods may hit some low-lying and poorly drained areas.
The Hong Kong Observatory raised the warning at 7.30am on Tuesday, which means heavy rain exceeding 30 millimetres has fallen or is expected to fall across the city.
“Heavy rain may bring about flash floods. People should stay away from watercourses. People who are likely to be affected by flooding should take necessary precautions to avoid losses,” it said.
The area of intense thundery showers associated with an active southwesterly airstream is affecting the vicinity of the Pearl River Estuary, according to the Observatory.
More than 20 millimetres of rainfall were recorded over Hong Kong’s New Territories in the morning. Over 50 millimetres, meanwhile, were recorded over Shenzhen and even exceeded 150 millimetres over Zhongshan and Zhuhai.