Since 1953, Atlantic tropical storms have been named from lists originated by the National Hurricane Center and now maintained and updated by an international committee of the World Meteorological Organization. Six lists are used in rotation. The 2004 list will be used again in 2010.
The only time there is a change in the list is if a storm is so deadly or costly that future use of its name would be inappropriate for reasons of sensitivity. If that occurs, the offending name is stricken from the list.
In the event that more than 21 named tropical cyclones occur in the Atlantic basin in a season, additional storms will take names from the Greek alphabet: Alpha, Beta, Gamma, Delta and so on.
Four names remain on the list for this year: Stan, Tammy, Vince and Wilma.
Source: National Hurricane Center, www.nhc.noaa.gov