WSAU21 AMMC 100538 YMMM SIGMET E03 VALID 100625/101025 YMMC- YMMM MELBOURNE FIR SEV TURB FCST WI S3800 E08000 - S3800 E08500 - S4900 E09300 - S4900 E08700 FL180/300 MOV NE 30KT NC=