Super Typhoon Ragasa, the world's most powerful tropical cyclone this year, is barrelling towards China's Guangdong province after lashing Hong Kong with hurricane-force winds and torrential rain. Before Hong Kong, it left a trail of destruction in Taiwan, killing 14 people when a mountain barrier lake burst its banks in Hualien. CNA's Yasmin Jonkers explains what qualifies as a super typhoon. Read more: https://cna.asia/3IyK0UU Subscribe to our channel here: https://cna.asia/youtubesub Visit