The 2005 Pacific hurricane season officially began on May 15, 2005 in the eastern Pacific and on June 1, 2005 in the central Pacific, and lasted until November 30, 2005. These dates conventionally delimit the period of each year when most tropical cyclones form in the northeastern Pacific Ocean. The season got off to a quick start, with the tropical depression that would become Hurricane Adrian forming just two days into the season on May 17. It took a very rare track skirting El Salvador as a Category 1 hurricane then striking Honduras as a tropical depression. Between June and September, Dora was the only storm that posed a significant threat to land as it skirted the Mexican coast, and Kenneth came close to Hawaii as a dissipating tropical depression. Hurricane Otis appeared to be heading for an encounter with the Baja California peninsula, but turned north-northwest, paralleling the coast, before dissipating.

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