Rubuta ci gaba don wannan sakin layi - A ranar 28 ga Disamba, Tropical Depression 23W ya samo asali game da yammacin tsibirin Palau. PAGASA kuma ya kira tsarin "Seniang". Bayan 'yan sa'o'i kadan, tsarin ya shirya cikin sauri kuma an dauke shi a matsayin guguwar wurare masu zafi, tare da sunan "Jangmi". A ranar 29 ga Disamba, Jangmi ya sauka a garin Hinatuan da ke lardin Surigao del Sur kuma a takaice ya kai kololuwar ƙarfinsa tare da iskar iska mai ƙarfi. Guguwar ta ratsa yankin Caraga, kuma ta fita daga yankin Mindanao yayin da tsarin ya raunana a hankali. A rana mai zuwa, Jangmi ya sauka a kan Cebu da kudancin Negros, kafin JTWC ya rage shi zuwa matsanancin zafi. Dukkanin hukumomin biyu sun yi gargadin karshe a kan Jangmi a ranar 1 ga Janairu, 2015, yayin da lokacin guguwar Pacific na 2015
ya fara.