WACN03 CWAO 181333 CZWG AIRMET E1 VALID 181330/181730 CWEG- CZWG WINNIPEG FIR SFC VIS 3/4-3SM BR - OVC CLD 200-500/2000FT OBS WI 120NM WID LINE BTN N6245 W08947 - N6041 W09244 MOV S 10KT WKN=