WACN23 CWAO 061812 CZWG AIRMET C1 VALID 061810/062210 CWEG- CZWG WINNIPEG FIR MOD ICE FCST WI 60NM WID LINE BTN /N5711 W09819/30 NE CZSN - /N5530 W09759/20 S CYTH SFC/FL030 MOV E 20KT NC RMK GFACN32=