 In mid @-@ November , the JMA briefly tracked a weak tropical depression near Wake Island . The agency also briefly tracked a tropical depression off the coast of Vietnam on December 16 . It finally dissipated on December 17 , with the pressure and winds unknown . The final system of the year was a tropical depression that originated out of the monsoon trough on December 24 east of the Philippines . After initially moving to the west , it turned to the south , and the JTWC estimated the depression intensified into a tropical storm . During this time , PAGASA classified it as Tropical Storm Zigzag . The system made landfall in northeastern Mindanao and dissipated on December 27 , bringing heavy rainfall . 
