WCIN31 VOMM 051122
VOMF SIGMET A03 VALID 051200/051800 VOMM- 
VOMF CHENNAI FIR TC MICHAUNG 
OBS AT 0900Z N1548 E08018 CB TOP FL400 
WI 100NM OF CENTRE MOV N  WKN FCST 1800Z CENTRE N1636 E08048=