WSCN04 CWAO 310744
CZYZ SIGMET A6 VALID 310740/311140 CWUL-
CZYZ TORONTO FIR FRQ TS OBS WI 40NM WID LINE BTN N4352 W08156 - N4336 W08035 -
N4408 W07831 - N4353 W07703 TOP FL360 MOV ESE 40KT NC=