My wife and I are going to Hainan 21-28July2010. Please advise are there any typhoons forecast for this period ? Normally how much advance alert notice is given when a typhoon is forecast ? 12 hours ? 1 day ? 2 days ? We will be joining a 5d4n tour of Haikou Boao Xingloong Sanya 21-25July, followed by 3 nights stay at Haikou 25-28July and fly back on 28July by Jetstar flight. Please advise precautions to take. Thank you.