WSCN25 CWAO 061123 CZUL SIGMET L4 VALID 061120/061520 CWUL- CZUL MONTREAL FIR SEV TURB FCST WI 90NM WID LINE BTN /N5348 W05607/30 E CYCA - /N5204 W05941/75 S CYYR SFC/FL040 MOV NNW 10KT WKN RMK GFACN34/CZQX GANDER DOMESTIC FIR SIGMET D4=