With the rapid development of the Greater Pearl River Delta, people are travelling more frequently in the region. To provide weather warning information for people on the move in this region, the Hong Kong Observatory worked together with the Guangdong Meteorological Bureau and the Macao Meteorological and Geophysical Bureau to develop a portal webpage showing weather warning information for the purpose of disaster prevention and mitigation.
   
The portal webpage has started operational trial since 6 August 2010. It incorporates real-time weather warning information from 11 cities, viz. Hong Kong, Macao, Shenzhen, Guangzhou, Dongguan, Zhuhai, Zhongshan, Huizhou, Foshan, Jiangmen and Zhaoqing, in the Greater Pearl River Delta region. As the weather warning systems in Hong Kong, Macao and the Mainland are different from each other, the portal webpage also provides a guide to the weather warning signals for all the cities in the region.

Address of the trial portal webpage: http://www.weather.gov.hk/wxinfo/gprd/index.htm 

Sample display of the beta version of the Greater Pearl River Delta Weather Warning webpage: weather warnings in force in 11 cities in the region are readily available to users