WSCN04 CWAO 272352
CZYZ SIGMET L7 VALID 272350/280350 CWUL-
CZYZ TORONTO FIR FRQ TS OBS WI 40NM WID LINE BTN N4514 W07714 - N4716 W07549 -
N4726 W07256 TOP FL360 MOV E 30KT WKN=