Alright, Google to the rescue:

Quote:
• Haiyan is the Chinese word for petrel, a type of bird that lives over the open sea and returns to land only for breeding.
...
• The storm is known as Super Typhoon Yolanda in the Philippines. The World Meteorological Organization officially assigns typhoon names, to have a consistent name for a storm, but other countries are free to create their own names too.


http://www.usatoday.com/story/weather/2013/11/07/super-typhoon-philippines/3468165/