hurricane, Tropical cyclone. 颶風, 熱帶氣旋.

Tropical Storm Isaac: Storm inches toward Louisiana seven years after Hurricane Katrina | Mail Online http://www.dailymail.co.uk/news/article-2193403/Tropical-Storm-Isaac-Storm-inches-Louisiana-seven-years-Hurricane-Katrina.html
Hurricane (disambiguation) - Wikipedia, the free encyclopedia http://en.wikipedia.org/wiki/Hurricane_(disambiguation)
颶風 - 维基百科，自由的百科全书 http://zh.wikipedia.org/wiki/%E9%A3%93%E9%A3%8E
Hurricane Katrina - Wikipedia, the free encyclopedia http://en.wikipedia.org/wiki/Hurricane_Katrina
熱帶氣旋 - 维基百科，自由的百科全书 http://zh.wikipedia.org/wiki/%E7%86%B1%E5%B8%B6%E6%B0%A3%E6%97%8B
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