page_title: Hurricane Ioke
section_title: Preparations and impact
hierarchical_section_title: Hurricane Ioke / Preparations and impact
caption_attribution_description: English: screen shot as Hurricane Ioke crosses over Wake Island
context_page_description: Hurricane Ioke, also referred to as Typhoon Ioke, had the highest Accumulated cyclone energy of any tropical cyclone on record. The first storm to form in the Central Pacific in the 2006 Pacific hurricane season, Ioke was a record breaking, long-lived and extremely powerful storm that traversed the Pacific for 17 days, reaching the equivalent of Category 5 status on the Saffir–Simpson hurricane scale on three different occasions. It was the most intense hurricane ever recorded in the Central Pacific, as well as the fifth-most intense Pacific hurricane on record, tied with 1973's Hurricane Ava.
  The cyclone developed in the Intertropical Convergence Zone on August 20 far to the south of Hawaii. Encountering warm waters, little wind shear, and well-defined outflow, Ioke intensified from a tropical depression to Category 4 status within 48 hours. Late on August 22 it rapidly weakened to Category 2 status before crossing over Johnston Atoll. Two days later favorable conditions again allowed for rapid strengthening, and Ioke attained Category 5 status on August 25 before crossing the International Date Line.
caption: Data recorded at Wake Island during the passage of Ioke
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