WSAU21 AMMC 041447

YMMM SIGMET F03 VALID 041600/042000 YMMC-

YMMM MELBOURNE FIR SEV TURB FCST WI S4050 E08520 - S3930 E08810 -

S4640 E09730 - S4820 E12120 - S5000 E12220 - S5000 E09350 FL250/400

MOV E 10KT NC=