Typhoon Sepat, known in the Philippines as Typhoon Egay, was the eighth named tropical storm, and the strongest tropical cyclone of the 2007 Pacific typhoon season to date, that affected the Philippines and made landfall in Taiwan and Fujian. The storm was formed on August 11 via a low-circulation center SE of Naha, Okinawa, and was named by JMA as Sepat on August 12, also known as Egay in the Philippines as it entered the PAR later. Sepat underwent an explosive intensification on the night of August 13, reaching peak intensity at Category 5-equivalent super typhoon intensity the following morning. The storm maintained its strength for 2 days, until it underwent an eyewall replacement cycle, just before he storm makes landfall in Taiwan on August 17 (+21:00 UTC) as a Category 3-equivalent