The season ran year-round, with the first storm, Yanyan, developing west of the Marshall Islands on January 15. In April, Typhoon Kujira became one of the longest-lasting Pacific typhoons in history and attained climatological records for its unusually early impacts. Typhoon Imbudo in July caused several deaths and extensive damage across the Philippines and China. In September, Typhoon Maemi became one of the costliest typhoons in recorded history after striking South Korea; Maemi was also the most intense tropical cyclone of the season with a minimum barometric pressure of 910 mbar (hPa; 26.87 inHg). In late November, Typhoon Lupit devastated areas of Yap State in the Federated States of Micronesia. The season closed with the dissipation of a tropical depression east of the Philippines on December 27.