WSCN03 CWAO 270539 CZWG SIGMET G2 VALID 270535/270935 CWEG- CZWG WINNIPEG FIR SEV TURB FCST WI 90NM WID LINE BTN N5817 W08522 - N6038 W08633 - N6310 W08342 - N6453 W07759 SFC/FL050 MOV E 10KT NC=