WCMG20 FMMI 161825
FMMM SIGMET C5 VALID 161825/170025 FMMI-
FMMM ANTANANARIVO FIR/UIR TC GEZANI PSN S2533 E04331 CB OBS AT
1800Z WI 150NM OF TC CENTRE TOP ABV FL530 MOV ESE 11KT INTSF=