Hong Kong Observatory unveiled a new weather radar at Tate’s Cairn on Thursday.

The new radar is Hong Kong’s first dual-polarisation Doppler weather radar built at a cost of HK$19 million. It replaces a 20-year-old forerunner and is the fifth radar to be installed at Tate’s Cairn. The first was constructed in 1959.

Shun Chi-ming (left) and Gregory So (right) at the opening ceremony of the Observatory’s new weather radar at Tate’s Cairn. Photo: HKO.

In addition to performing traditional functions, the new radar can identify hail areas and raindrop sizes in the air for monitoring hail and rainfall rates.

Director of the Hong Kong Observatory Shun Chi-ming, said at the new radar’s opening ceremony that heavy rain would occur more readily in the 21st century due to global warming.

An analysis of the Tate’s Cairn radar. Photo: HKO.

To provide better information about rain development to the Hong Kong public, on Thursday the Observatory also began enhancing its radar webpage by updating radar imagery within the range of 64 km at six-minute intervals instead of 12-minute intervals.

The Secretary for Commerce and Economic Development, Gregory So, said at the ceremony that the new radar would be operating in tandem with another radar at Tai Mo Shan.


Medhavi Arora is in her final year at the University of Hong Kong studying Journalism and International Relations. Her print, video and multimedia pieces have been featured in the Times of India and CNN-IBN. She is a former intern at UN Women and has additional experience in sustainability, international affairs and communications.