WSAU21 AMMC 040209 YMMM SIGMET N03 VALID 040259/040659 YMMC- YMMM MELBOURNE FIR SEV TURB FCST WI S5000 E09800 - S5000 E09300 - S4000 E09000 - S4000 E09400 FL200/320 MOV ENE 40KT NC=