WCMG31 FMMI 301245 CCB FMMM SIGMET E6 VALID 301245/301825 FMMI- FMMM ANTANANARIVO FIR/UIR TC FYTIA OBS AT 1200Z S1519 E04254 CB TOP FL530 WI 230NM OF TC CENTRE MOV NE 04KT INTSF FCST AT 1800Z TC CENTRE S1541 E04346=