WSAU21 AMMC 042307

YMMM SIGMET G04 VALID 050000/050400 YMMC-

YMMM MELBOURNE FIR SEV TURB FCST WI S1620 E07500 - S2110 E08400 -

S4720 E07920 - S5000 E07500 FL210/450 MOV E 20KT NC=