WSCN23 CWAO 250421
CZWG SIGMET B1 VALID 250420/250820 CWUL-
CZWG WINNIPEG FIR FRQ TS OBS WI 20NM WID LINE BTN /N5033 W09148/25 N CYXL -
/N4943 W09153/25 S CYXL - /N4818 W09018/45 W CYQT TOP FL340 MOV NNE 25KT WKN
RMK GFACN33=