2009 WMHB Pacific hurricane season (Cooper)

The 2009 Pacific hurricane season was the most active Pacific hurricane season since 1997, with 23 named storms, 8 hurricanes, and 5 major hurricanes forming. The season officially started on May 15, 2009 in the eastern Pacific, and on June 1, 2009 in the central Pacific, while the season ended in both basins on November 30, 2009. These dates historically describe the period each year when most tropical cyclones form in the Pacific basin and are adopted by convention.

Storm names
The following list of names was used for named storms that formed in the Northeastern Pacific in 2009. The names not retired from this list were used again in the 2015 season. This was the same list used in the 2003 season, with the exceptions of Inigo and Miguel, which replaced Ignacio and Marty. The names Inigo, Miguel, and Sarah were used for the first time this year.

For storms that form in the Central Pacific Hurricane Center's area of responsibility, encompassing the area between 140 degrees west and the International Date Line, all names are used in a series of four rotating lists. The next four names that were slated for use are listed below.

Retirement
On April 7, 2010, at the 32nd session of the RA IV hurricane committee, the World Meteorological Organization retired the names Linda and Terry from its rotating name lists due to the amount of damage and deaths they caused, and they will not be used again for another Pacific hurricane. They were replaced with Lorraine and Tim for the 2015 season.