Cyclone Percy was the seventh named storm of the 2004-05 South Pacific cyclone season and the fourth and final cyclone to form during the February 2005 outbreak in the South Pacific Ocean.
Percy was also the most damaging of the February cyclones as it battered the Cook Islands, which were still recovering from the impacts of Cyclones Meena, Nancy and Olaf. Percy then devastated the island of Tokelau, leaving many homeless and millions in dollars in property damages. Because of warnings in anticipation of the storm, there were no deaths and there were only a few injuries.
Relief efforts followed after Cyclone Percy. In Swains Island, a rescue plane dropped food and supplies. In Tokelau and northern Cook Islands, the governments of Australia and New Zealand offered over $200,000 dollars (2005 USD) in relief aid. In Tokelau, many of the local officials feared about contamination since the cyclone had scattered human waste, trash, and other debris in the ocean and across the island. There was also an increase of mosquitoes and other insects, increasing the threat of a dengue fever outbreak. In addition, the storm damaged many of the hospitals, making treatment of the injured or displaced difficult. In Nukunonu, the school, which was destroyed by Percy, was poorly built and vulnerable, and there was no early warning system. Also, many of the population had little time to prepare for the storm because of a social event held hours earlier.