text:  While approaching northern Luzon on October 29 , Krosa quickly intensified as the initial eye feature organized into a well @-@ defined eye . Late on October 30 , the JTWC upgraded Krosa to typhoon status , and the next day , both PAGASA and JMA followed suit . On October 31 , Krosa made landfall in northeastern Luzon near Cagayan , and developed a symmetric eyewall while initially moving over land . Land interaction weakened the eye by the time Krosa emerged into the South China Sea late on October 31 . The next day , PAGASA discontinued advisories after the typhoon exited the region . Convection rebuilt around the center , with continued favorable conditions allowing for restrengthening . 
  