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.
2007 Pacific typhoon season
It then took a northwesterly turn, entered the PAGASA area of responsibility on May 18 as it reached severe tropical storm strength, and was named "Amang". Later that day, the JTWC upgraded it to a typhoon, and identified a "distinct eye feature", and the JMA upgraded the severe tropical storm to a typhoon at 1800 UTC as it continued to intensify. It began to recurve towards Iwo Jima, undergoing rapid intensification, with "enhanced poleward outflow and low vertical wind shear". It reached its peak on the evening of May 20, as a strong Category 4-equivalent typhoon, just short of becoming a super typhoon.