WSAU21 AMMC 161632

YMMM SIGMET F04 VALID 161725/162125 YMMC-

YMMM MELBOURNE FIR SEV TURB FCST WI S3820 E09120 - S3410 E07900 -

S2820 E09130 - S3240 E10540 - S3700 E10540 FL250/400 STNR NC=