2018 WMHB Pacific hurricane season (Cooper)

The '2018 Pacific hurricane season is an ongoing event in the formation of tropical cyclones in the North Pacific Ocean. The season officially started on May 15, 2018 in the eastern Pacific, and on June 1, 2018 in the central Pacific, while the season ended in both basins on November 30, 2018. These dates conventionally delimit the period of each year when most tropical cyclones form in the Pacific basin. However, the formation of tropical cyclones is possible at any time of the year, as shown by the formation of Tropical Storm Aletta on May 9.

Storm names
The following list of names was used for named storms that formed in the Northeastern Pacific in 2018. The names not retired from this list will be used again in the 2024 season. This was the same list used in the 2012 season, with the exception of the name Pat, which replaced Paul.