During the season 29 tropical storms developed in the Western Pacific and each one was named by the JMA, when the system was judged to have 10-minute sustained windspeeds of . The JMA selected the names from a list of 140 names, that had been developed by the 14 members nations and territories of the ESCAP/WMO Typhoon Committee. During the season the names Leepi and Mangkhut were used for the first time, after they had replaced the names Xangsane and Durian, which were retired after the 2006 season.