Hurricane Dora, also known as Typhoon Dora, was a long‑lived and powerful tropical cyclone that tracked across all three North Pacific tropical cyclone basins in August 2023. The fourth named storm, fourth hurricane, and second major hurricane of the 2023 Pacific hurricane season, Dora developed on July 31, from a tropical wave that had crossed over Central America from the North Atlantic, and became a tropical storm early the following day. During August 2–3, the system rapidly intensified to Category 4 strength. The same day, Dora moved into the Central Pacific basin from the East Pacific basin. Dora's annular structure deteriorated, leaving the system susceptible to dry air intrusions, and the hurricane passed south of Johnston Island. Dora weakened to Category 3 strength on the morning of August 10.