WSCN27 CWAO 060416 CZQX SIGMET D2 VALID 060415/060815 CWUL- CZQX GANDER DOMESTIC FIR SEV TURB FCST WI 120NM WID LINE BTN /N5258 W05458/45 NE CYMH - /N5019 W06009/20 SW CYHR SFC/FL040 MOV NNW 5KT WKN RMK GFACN34/CZUL MONTREAL FIR SIGMET L2=