WSAU21 AMMC 120748

YMMM SIGMET S01 VALID 120800/121200 YMMC-

YMMM MELBOURNE FIR SEV TURB FCST WI S2740 E08950 - S3030 E09500 -

S3540 E09540 - S3340 E09220 - S2830 E08740 FL300/390 MOV E 40KT NC=