An area of low pressure is consolidating around 800 kilometres from Hong Kong and is expected to gradually develop into a tropical depression.
Acting senior scientific officer Shum Chi-tai told an RTHK radio programme on Tuesday that the forecaster will assess whether a higher signal has to be issued on Thursday.
“Generally speaking, the impact of a tropical cyclone on Hong Kong depends on a lot of factors,” he said.
“Apart from its distance from Hong Kong, it will also depend on its strength at the time.
“The wind field structure of the cyclone will also affect the wind force and the amount of rain it brings to Hong Kong.”
Hong Kong, Shum said, will continue to see hot weather tomorrow and there will also be swells, which means the public should stay away from shorelines.
The cyclone is expected to move towards Hainan and the vicinity of the coast of western Guangdong in the middle and latter parts of this week.
Shum added that during that time, there will be squally thunderstorms.
