WSCN04 CWAO 221849
CZYZ SIGMET B3 VALID 221845/222245 CWUL-
CZYZ TORONTO FIR FRQ TSGR POSS +FC OBS WI 40NM WID LINE BTN N4620 W07851 - N4437
W07906 - N4344 W08049 TOP FL510 MOV NE 40KT NC=