WSCN02 CWAO 272323 CZEG SIGMET O7 VALID 272320/280320 CWEG- CZEG EDMONTON FIR SEV TURB FCST WI 180NM WID LINE BTN N5737 W07712 - N6315 W07359 - N6413 W07105 SFC/FL040 MOV E 10KT NC=