▁ 1 2 : 0 0 ▁UTC   — ▁The ▁J MA ▁reports ▁that ▁Trop ical ▁Storm ▁V ong f ong ▁has ▁intens ified ▁into ▁a ▁severe ▁tropical ▁storm . ▁ 1 5 : 0 0 ▁UTC   — ▁Ph an f one ▁was ▁down grad ed ▁to ▁a ▁Category ▁ 3 ▁ty ph oon ▁by ▁the ▁J TW C . ▁ ▁October ▁ 5 ▁ 0 9 : 0 0 ▁UTC   — ▁Ph an f one ▁weak ens ▁to ▁a ▁Category ▁ 2 ▁ty ph oon . ▁In ▁the ▁same ▁time , ▁the ▁J TW C ▁up gr ades ▁V ong f ong ▁to ▁a ▁Category ▁ 2 ▁ty ph oon . ▁ ▁October ▁ 6 ▁ 0 6 : 0 0 ▁UTC   — ▁The ▁J MA ▁reports ▁that ▁Ty ph oon ▁Ph an f one ▁has ▁weak ened ▁into ▁a ▁severe ▁tropical ▁storm . ▁ 0 9 : 0 0 ▁UTC   — ▁The ▁J TW C ▁issues ▁their ▁final ▁advis ory ▁on ▁Ph an f one , ▁as ▁it ▁trans itions ▁into ▁an ▁extr at rop ical ▁cy clone . ▁ 1 2 : 0 0 ▁UTC   — ▁The ▁J MA ▁reports ▁that ▁Ty ph oon ▁Ph an f one ▁has ▁transition ed ▁into ▁an ▁extr at rop ical ▁cy clone . ▁ ▁October ▁ 7 ▁ 0 3 : 0 0 ▁UTC   — ▁The ▁J TW C ▁reports ▁that ▁Ty ph oon ▁V ong f ong ▁has ▁intens ified ▁and ▁become ▁equivalent ▁to ▁a ▁Category