WACN32 CWEG 200220 AIRMET A1 ISSUED AT 0214Z CWEG- AMEND GFACN32 CWAO 192330 ISSUE WTN 40 NM OF /5518N11447W/SLAVE LAKE. ADD LCL 2SM -SN. AREA QS. END/GFA32/CMAC-W/RSP