pression ▁by ▁M ete o - France , ▁on ▁December ▁ 1 9 . ▁The ▁system ▁did ▁not ▁move ▁much , ▁and ▁pers isted ▁through ▁the ▁ 2 0 th . ▁However , ▁on ▁December ▁ 2 1 , ▁the ▁subt rop ical ▁de pression ▁began ▁to ▁weak en ▁as ▁it ▁moved ▁south ward ▁very ▁slowly . ▁Late ▁on ▁December ▁ 2 3 , ▁M ete o - France ▁issued ▁their ▁last ▁advis ory ▁on ▁the ▁storm ▁as ▁it ▁diss ip ated . ▁ ▁He avy ▁ra inf all ▁related ▁to ▁the ▁de pression ▁killed ▁ 4 3   people ▁in ▁Mad agas car . ▁ ▁Trop ical ▁Cy clone ▁Ben ilde ▁ ▁On ▁December ▁ 2 8 , ▁R S MC ▁La ▁Ré union ▁reported ▁that ▁Trop ical ▁Dist urb ance ▁ 0 4 ▁had ▁moved ▁into ▁the ▁region ▁from ▁the ▁Australian ▁region , ▁where ▁it ▁had ▁been ▁monitor ed ▁for ▁about ▁a ▁week . ▁During ▁that ▁day ▁the ▁disturb ance ▁gradually ▁developed ▁further ▁which ▁prompt ed ▁the ▁J TW C ▁to ▁start ▁issu ing ▁advis ories ▁on ▁the ▁system ▁and ▁design ate ▁it ▁as ▁Trop ical ▁Cy clone ▁ 0 4 S . ▁On ▁December ▁ 2 9 , ▁La ▁Ré union ▁upgrad ed ▁the ▁system ▁to ▁a ▁moder ate ▁tropical ▁storm , ▁which ▁was ▁then ▁named ▁Ben ilde ▁by ▁Maur it ius , ▁a ▁name ▁contributed ▁by ▁Moz amb ique . ▁Ben ilde ▁moved ▁in ▁a ▁general ▁west ward ▁direction ▁and ▁quickly ▁intens ified ▁into ▁a ▁tropical ▁cy clone ▁by