Data from JTWC and HKO are presented in Yellow (JTWC), Red (JTWC Forecast), WHITE (HKO) and BLUE (HKO Forecast).

HKO Boundary lines of 800/400/200/100km from Hong Kong are shown over South China Sea area.

Data on this map are automatically updated on the following Hong Kong Time by web scrapers developed by Sammy Fung.