The 2004 Pacific hurricane season officially started May 15 , 2004 in the eastern Pacific , and June 1 , 2004 in the central Pacific , and lasted until November 30 , 2004 . The 2004 Pacific hurricane season officially started on May 15 , 2004 in the eastern Pacific , and on June 1 , 2004 in the central Pacific , and lasted until November 30 , 2004 .