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.

Hong Kong raised its storm alert to the highest level as it braced for tropical cyclone Wipha, with Cathay Pacific Airways Ltd. delaying and canceling flights in and out of the city on Sunday.

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.