WSAU21 AMMC 060852

YMMM SIGMET I01 VALID 060852/061252 YMMC-

YMMM MELBOURNE FIR SEV TURB FCST WI S5000 E07530 - S4500 E08230 -

S4700 E08430 - S5000 E08030 FL180/320 MOV E 50KT NC=