WSAU21 AMMC 140129 YMMM SIGMET G02 VALID 140150/140550 YMMC- YMMM MELBOURNE FIR SEV TURB FCST WI S4400 E08500 - S4600 E09000 - S5000 E08210 - S5000 E07500 - S4900 E07500 FL180/320 MOV E 20KT NC=