WACN31 CWEG 291256 AIRMET L1 ISSUED AT 1256Z CWEG- AMEND GFACN31 CWUL 291130 ISSUE WTN 50 NM OF LN /5405N13149W/50 N SANDSPIT - /5126N12843W/50 S MCINNES ISLAND. ADD LCL 1/4SM FG DSPTG AFT 18Z. END/CS/GFA31/CMAC-W