WSCN02 CWAO 271312 CZEG SIGMET O4 VALID 271310/271710 CWEG- CZEG EDMONTON FIR SEV TURB FCST WI 90NM WID LINE BTN N5556 W07916 - N5827 W08031 - N6247 W07832 - N6502 W07504 SFC/FL050 MOV E 10KT NC=