 The 2007 Pacific hurricane season was a below @-@ average Pacific hurricane season , featuring one major hurricane . The season officially started on May 15 in the eastern Pacific and on June 1 in the central Pacific , and ended on November 30 ; these dates conventionally delimit the period during which most tropical cyclones form in the region . The first tropical cyclone of the season, Tropical Storm Aletta , formed on June 17. Begriffe. 1996-1997 Pacific hurricane season. The season officially started on May 15 in the eastern Pacific and on June 1 in the central Pacific, and ended on November