 The season ran year @-@ round , with the first storm , <unk> , developing west of the Marshall Islands on January 15 . In April , Typhoon <unk> became one of the longest @-@ lasting Pacific <unk> in history and attained <unk> records for its unusually early impacts . Typhoon Imbudo in July caused several deaths and extensive damage across the Philippines and China . In September , Typhoon <unk> became one of the costliest <unk> in recorded history after striking South Korea ; <unk> 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 <unk> devastated areas of Yap State in the <unk> States of <unk> . The season closed with the <unk> of a tropical depression east of the Philippines on December 27 . 
