WSCN04 CWAO 122208
CZYZ SIGMET A3 VALID 122205/130205 CWUL-
CZYZ TORONTO FIR FRQ TS OBS WI 30NM WID LINE BTN N4905 W08653 - N4949 W08857 -
N4911 W09005 TOP FL390 MOV ENE 40KT WKN=