High Quality Content by WIKIPEDIA articles! The 1989 Pacific hurricane season officially started May 15, 1989 in the Eastern Pacific, and June 1, 1989 in the Central Pacific, and lasted until November 30, 1989. These dates conventionally delimit the period of each year when most tropical cyclones form in the northeastern Pacific Ocean. Overall, the season continued the general trend in the 1980s of near to above-average seasons in the East Pacific. Seventeen cyclones formed. Eight peaked at tropical storm strength. Nine systems became hurricanes, of which four were major hurricanes at Category 3 intensity or higher on the Saffir-Simpson Hurricane Scale.