 Five sets of Hawaiian names, using only the 12 letters of the Hawaiian alphabet, were drafted with the intent being to use the sets of names on an annual rotation basis.However, after no storms had developed in this region between 1979 and 1981, the annual lists were scrapped and replaced with four sets of names and designed to be used consecutively.Ahead of the 2007 hurricane season, the Central Pacific Hurricane Center (CPHC) and the Hawaii State Civil Defense requested that the hurricane committee retire eleven names from the Eastern Pacific naming lists.