WSCN04 CWAO 171420
CZYZ SIGMET E1 VALID 171420/171820 CWUL-
CZYZ TORONTO FIR SEV ICE (FZRA) FCST WI 30NM WID LINE BTN N4920 W09613 - N5043
W09518 - N5116 W09413 - N5116 W08758 - N4930 W08309 SFC/FL040 MOV ENE 20KT NC=