Hong Kong: Hong Kong has issued its highest-level weather warning, a ‘black’ alert, as torrential rains have brought the city to a standstill.
The downpour, part of a larger weather system affecting southern China, has caused significant flooding and forced the shutdown of clinics, schools, law courts, and some airport operations. The Hong Kong Observatory recorded over 10,000 lightning strikes in a single hour early August 5, while rainfall reached up to 90mm per hour.
Public safety agencies have urged residents to take shelter and avoid travel. Staircases in Hong Kong’s famously hilly cityscape turned into cascading streams, with water reaching ankle height near Queen Mary Hospital, the city’s largest.
5 Aug 2PM:Areas of intense thundery showers associated with active southwest monsoon and… https://t.co/oMKFlWCqen
— Observatory HKO (@ObservatoryHK) August 5, 2025
The flooding has hit the broader Pearl River Delta region hard, including Guangdong province and Macau. Authorities report that four rivers in Guangdong are dangerously close to overflowing, following flash floods that killed five people over the weekend. Over 1,300 rescuers have been deployed in response.
Despite the weather chaos, Hong Kong Disneyland has remained open, with its daily parade still scheduled. The Hong Kong Stock Exchange has also stayed operational under a new all-weather trading policy.
Transport infrastructure, including the Hong Kong-Zhuhai-Macau Bridge, has faced reduced speed limits due to poor visibility. Regional airports reported about 20 percent flight cancellations.
The Hong Kong weather warning reflects a growing climate challenge across China, where extreme rainfall events are becoming more frequent. These patterns are increasingly linked to climate change and are raising concerns over urban preparedness and disaster resilience.
Meteorologists note that more than half of Hong Kong’s 2,200mm annual rainfall typically falls between June and August, highlighting the severity of this latest storm system impacting Hong Kong.
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