WSAU21 AMMC 011708

YMMM SIGMET H16 VALID 011800/012200 YMMC-

YMMM MELBOURNE FIR SEV TURB FCST WI S3500 E11250 - S3710 E11320 -

S3840 E09910 - S3610 E09120 - S3040 E09010 FL260/360 MOV ESE 25KT NC=