HONG KONG (Reuters) -Chinese authorities will cancel flights in Hainan on Saturday night before Typhoon Matmo hits the southern province, likely disrupting a peak holiday travel period for the resort island. Matmo, which caused flooding in the Philippines this week, is expected to make landfall on Sunday. Haikou had planned nearly 150 cultural events and more than 10 sports competitions during the holiday period, while the resort city Sanya had planned 170 art and tourism activities, according to Hainan’s official social media. The Hong Kong Observatory said it would raise the tropical cyclone warning signal to Strong Wind Signal No. The financial hub has issued 12 tropical cyclone warning signals this year, the most since 1946, the observatory said on Friday.