The tropical cyclone near Luzon will move across the vicinity of Luzon today (17 September) and enter within 800 kilometres of Hong Kong. The Observatory will consider issuing the Standby Signal, No. 1 between tonight and early Thursday (18 September).
The tropical cyclone is expected to move in the general direction of the coast of Guangdong and intensify gradually. However, under the influence of the northeast monsoon, there are uncertainties in its movement and intensity. As its circulation is relatively small, the tropical cyclone will only bring significant impact to local weather when it gets relatively close to Hong Kong. Depending on the intensity of the tropical cyclone, the distance of its strong winds from Hong Kong and the change in local wind conditions, the Observatory will assess the need for issuing higher Tropical Cyclone Warning Signals on Friday (19 September).
Under the influence of the outer rainbands associated with the tropical cyclone, the local weather will become unsettled on Friday. It will be windier with showers and squally thunderstorms over the weekend. There will be swells. Members of the public should take note of the latest weather information from the Observatory.
Issued at 00:00 HKT 17/Sep/2025
