Observatory also says local winds have occasionally been strong over parts of the city, including offshore and on high ground

The Hong Kong Observatory will consider replacing the No 1 typhoon warning with a strong monsoon signal between 4pm and 7pm on Friday, as the tropical depression edges away from the city and towards seas south of Hainan Island.

The forecaster also said on Friday that local winds had occasionally been strong over parts of the city, including offshore and on high ground.

The winds were induced by the tropical depression and a ridge of high pressure dominating over the southeastern coast of China, it added.

“When the tropical depression poses less threat to Hong Kong, and local weather is further dominated by the ridge of high pressure, the Observatory will consider replacing the standby signal No 1 with the strong monsoon signal between 4pm and 7pm [on Friday],” it said.