un ▁has ▁intens ified ▁and ▁become ▁equivalent ▁to ▁a ▁Category ▁ 3 ▁ty ph oon ▁on ▁the ▁SSH WS . ▁ ▁July ▁ 1 6 ▁ 0 6 : 0 0 ▁UTC   — ▁The ▁J MA ▁reports ▁that ▁a ▁tropical ▁de pression , ▁has ▁developed ▁to ▁the ▁n ortheast ▁of ▁Pal au . ▁ 1 2 : 0 0 ▁UTC   — ▁The ▁J MA ▁reports ▁that ▁Ty ph oon ▁R amm as un ▁has ▁weak ened ▁into ▁a ▁severe ▁tropical ▁storm . ▁ ▁July ▁ 1 7 ▁ 0 0 : 0 0 ▁UTC   — ▁The ▁J MA ▁reports ▁that ▁Se vere ▁Trop ical ▁Storm ▁R amm as un ▁has ▁re - int ens ified ▁into ▁a ▁ty ph oon . ▁ 0 6 : 0 0 ▁UTC   — ▁Ty ph oon ▁R amm as un ▁intens ifies ▁back ▁into ▁a ▁Category ▁ 4 ▁ty ph oon . ▁ 1 2 : 0 0 ▁UTC   — ▁The ▁J MA ▁reports ▁that ▁the ▁tropical ▁de pression ▁previously ▁located ▁to ▁the ▁n ortheast ▁of ▁Pal au ▁has ▁become ▁a ▁tropical ▁storm . ▁ 1 2 : 0 0 ▁UTC   — ▁The ▁J TW C ▁initi ates ▁advis ories ▁on ▁the ▁tropical ▁de pression ▁and ▁assign s ▁it ▁the ▁design ation : ▁ 1 0 W . ▁ 1 8 : 0 0 ▁UTC   — ▁The ▁J MA ▁names ▁the ▁tropical ▁storm : ▁Mat mo . ▁ 1 8 : 0 0 ▁UTC   — ▁The ▁J TW C