Pearl River Delta Lightning Location Network was officially operated at 2005/7/12. The network comprises five stations jointly established by the Hong Kong Observatory, the Guangdong Meteorological Bureau and the Macao Meteorological and Geophysical Bureau. The stations are located at Chung Hom Kok, Tsim Bei Tsui, Sha Tau Kok in Hong Kong, Sanshui in Guangdong and Taipa Grande in Macao.
The lightning records are updated at 5-minute intervals (before the time display above), the small chart display whenever lightning number was detected in the past one hour (15 minute intervals) in region.