WSCN03 CWAO 180548
CZWG SIGMET B5 VALID 180545/180945 CWEG-
CZWG WINNIPEG FIR FRQ TS OBS WI 40NM WID LINE BTN N4938 W09921 - N4922 W09732 -
N4921 W09520 TOP FL390 MOV E 20KT WKN=