WACN25 CWAO 251705 CZUL AIRMET B2 VALID 251705/252105 CWEG- CZUL MONTREAL FIR SFC VIS 1-3SM -SN BLSN OBS WI 20NM WID LINE BTN /N6225 W07649/30 E CYIK - /N6210 W07516/10 E CYZG - /N6219 W07410/45 E CYZG STNR NC RMK GFACN36=