WSCN04 CWAO 160736
CZYZ SIGMET L3 VALID 160735/161135 CWUL-
CZYZ TORONTO FIR SEV ICE (FZRA) FCST WI 40NM WID LINE BTN N4529 W08300 - N4629
W08017 - N4724 W07620 SFC/FL050 MOV NNW 5KT NC=