Severe tropical storm Nida is edging closer to Hong Kong and is set to make landfall on Tuesday morning.
The storm is expected to pick up speed with winds forecasted to reach 38-45 metres per second by the time it hits the Guangdong coast.
The Observatory issued a T1 at 10:10pm on Sunday.
China’s National Meteorological Centre has already issued a yellow alert – the third-most severe warning on the four-point colour scale. It will be the fourth typhoon to hit China this year.
In Hong Kong, the weather will be very hot, with a few hours and sunny periods on Monday. Temperatures will range between 27 and 34 degrees with thunderstorms becoming more frequent later in the day.