WSCN05 CWAO 062348 CZUL SIGMET G2 VALID 062345/070345 CWUL- CZUL MONTREAL FIR SEV TURB OBS AT 2245Z WI 120NM WID LINE BTN N4619 W06731 - N4815 W05854 FL360/450 MOV ESE 10KT WKN=