WSAU21 AMMC 120446

YMMM SIGMET D12 VALID 120500/120900 YMMC-

YMMM MELBOURNE FIR SEV TURB FCST WI S2750 E07500 - S3150 E08920 -

S2940 E10640 - S3030 E11950 - S3300 E12240 - S3640 E09200 - S3130

E07500 FL200/380 MOV E 50KT NC=