The Hong Kong Observatory hoisted the Standby Signal No.1 at 5:15 pm on Thursday, as a tropical depression over the South China Sea is expected to move towards the vicinity of Hainan Island and Guangdong over the next two days.
The tropical depression will keep a distance of about 500 kilometres from Hong Kong on Thursday night. The chance of issuing the Strong Wind Signal No. 3 on Thursday night is not high, the Observatory said.
The Observatory expects occasionally squally showers and thunderstorms over the weekend, due to the outer rain bands associated with the tropical depression.
The weather on Friday will range between 27 and 31 degrees Celsius, with squally showers and isolated thunderstorms. There will be moderate to fresh east to southeasterly winds, and occasionally strong offshore winds, the Observatory said.
The tropical depression is currently over the central and northern parts of the South China Sea, and is expected to slowly develop and move towards the vicinity of the coast of western Guangdong to Hainan Island.
Showers over the coast of Guangdong will ease off gradually early next week, the Observatory said.
The Very Hot Weather Warning has been in effect since last Friday, with daytime temperatures reaching 32 degrees Celsius.