BEIJING, July 20 (Reuters) - Hong Kong issued its highest storm warning on Sunday as Typhoon Wipha, packing winds of more than 167 kilometres (103 miles) per hour, brought heavy rain and wind across the territory, forcing the cancellation of more than 200 flights.

China's national observatory on Saturday issued a yellow alert for Typhoon Wipha as the sixth typhoon of the year is expected to bring strong winds and heavy rain to the southern coastal regions of the country.