High Quality Content by WIKIPEDIA articles! Hurricane Dora (JTWC designation: 07E, international designation: 9911) was the longest-lasting tropical cyclone of the 1999 Pacific hurricane season. The fourth named storm, third hurricane, and second major hurricane of the season, Dora developed on August 6 from a tropical wave to the south of Mexico. It maintained a steady westward track for much of its lifetime, reaching peak winds of 140 mph (220 km/h) on August 12 and August 13. Dora lasted for a total of 17 days before dissipating on August 23 to the north of Wake Island in the western Pacific Ocean.