WSAU21 AMMC 021748

YMMM SIGMET J04 VALID 021801/022201 YMMC-

YMMM MELBOURNE FIR FRQ TS OBS WI S0230 E09240 - S0450 E09210 - S0520

E09050 - S0440 E08950 - S0200 E09200 TOP FL520 STNR NC=