 By August 24 the hurricane maintained a closed eyewall, and on August 25 Ioke attained Category 5 status on the Saffir-Simpson Hurricane Scale while located about west-southwest of the Hawaiian Island of Kauai.After maintaining Category 5 status for about 18 hours, Ioke weakened slightly due to an eyewall replacement cycle.Completing the cycle on August 26, the hurricane restrengthened to Category 5 status.