WSAU21 AMMC 121904

YMMM SIGMET W07 VALID 122030/130030 YMMC-

YMMM MELBOURNE FIR SEV TURB FCST WI S1930 E07830 - S3030 E11900 -

S3430 E12130 - S2530 E07500 FL270/390 MOV ESE 50KT NC=