2006 Pacific typhoon season
The 2006 Pacific typhoon season was a near-average season that produced a total of 23 named storms, 15 typhoons, and six super typhoons. The season ran throughout 2006, though most tropical cyclones typically develop between May and October. The season's first named storm, Chanchu, developed on May 9, while the season's last named storm, Trami, dissipated on December 20. Also, this season was more active, costly, and deadly than the previous season.
2004 Pacific hurricane season
The season's first storm, Agatha, developed on May 22. No tropical cyclones developed during June, below the average of 2 named storms and 1 hurricane, and also the first time since 1969 that the month was cyclone-free. Activity remained below average throughout the remainder of the season, with a total of 12 named storms, 6 hurricanes, and 3 major hurricanes compared to the long-term average of 16 named storms, 9 hurricanes, and 3 major hurricanes. Overall wind energy output was reflected with an ACE index value of 71 units. Although vertical wind shear was near average and ocean temperatures were slightly warmer than average south of Mexico, anomalously cool waters and drier than average air mass existed in the central portions of the eastern Pacific. Anomalously strong mid-level ridging extending from the Atlantic to northern Mexico steered a majority of the season's cyclones toward this inhospitable region and also acted to steer all the system of tropical storm intensity or stronger away from land.