Tropical Cyclone Warning Bulletin Here is the latest Tropical Cyclone Warning Bulletin issued by the Hong Kong Observatory. The Standby Signal, No. 1 is in force. This means that a tropical cyclone now centred within about 800 kilometres of Hong Kong may affect us. At noon, the tropical depression over the central and northern parts of the South China Sea was estimated to be about 640 kilometres south-southwest of Hong Kong (near 17.4 degrees north 111.0 degrees east) and is forecast to move northwest at about 15 kilometres per hour in the general direction of the vicinity of Hainan Island. Under the combined effect of the tropical depression and the ridge of high pressure over southeastern China, local winds are occasionally strong offshore and on high ground. There are squally showers and thunderstorms over Hong Kong. Showers will be heavier at times. According to the present forecast, the tropical depression will maintain a distance of around 600 kilometres or above from Hong Kong. The Standby Signal, No. 1 will remain in force at least until 8 p.m. tonight. The need for issuance of the Strong Wind Signal, No. 3 thereafter depends on the distance between its associated strong winds and the Pearl River Estuary, and the change in local winds. Seas will be rough with swells. Members of the public are advised to stay away from the shoreline and not to engage in water sports. (Precautionary Announcements with No. 1 Signal) 1. People planning to visit Guangdong, Macau, outlying islands or remote parts of Hong Kong should note that changes in weather may affect your trips. 2. Precautions should be taken. Drains should be cleared of obstructions, and windows and doors should be checked. 3. People in areas of exposed to high winds or in low-lying areas should take precautions against strong winds and flooding. 4. Those who have duties during a tropical cyclone should now remain on call. 5. Fishing vessels and low power vessels in open sea should seek shelter as soon as possible and be secured properly with moorings. 6. Construction and property management practitioners should make sure that overhanging facilities and temporary structures outdoors are securely fastened, and should take precautionary measures. 7. Listen to radio, watch TV or browse the Hong Kong Observatory's website and mobile app for the latest information on the tropical cyclone. Dispatched by Hong Kong Observatory at 11:45 HKT on 17.08.2025
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