Hmm.. I think that's a typo both ways? 50 cm is less than what most waves are. If I'm not mistaken, our East Coast gets 3-4m waves in bad weather and that's normal. So, it's likely to be 5m. 50m sounds farfetched.
Info received in the morning is a live newsfeed from DJ before the news hit our shores. It's announced now. The link... http://thestar.com.my/news/story.asp?file=/2007/7/16/apworld/20070716153853&sec=apworld