WSAU21 AMMC 091517

YMMM SIGMET O03 VALID 091600/092000 YMMC-

YMMM MELBOURNE FIR SEV TURB FCST WI S4150 E09140 - S5000 E09440 -

S5000 E09250 - S3740 E08510 - S3520 E08630 FL130/280 MOV E 20KT NC=