WSAU21 AMMC 041402 YMMM SIGMET P07 VALID 041454/041854 YMMC- YMMM MELBOURNE FIR EMBD TS FCST WI S1000 E07500 - S1440 E08430 - S2600 E08640 - S2750 E08300 - S2620 E07850 - S2430 E08330 - S1810 E08130 - S1440 E07500 TOP FL520 MOV E 15KT NC=