WSCN22 CWAO 271715 CZEG SIGMET I3 VALID 271715/272115 CWEG- CZEG EDMONTON FIR SEV TURB FCST WI 40NM WID LINE BTN /N6638 W06705/45 NW CYXP - /N6520 W06356/60 SE CYXP SFC/FL030 STNR INTSF RMK GFACN36=