WACN31 CWEG 161815 AIRMET L1 ISSUED AT 1815Z CWEG- AMEND GFACN31 CWAO 161730 ISSUE WTN 60 NM OF LN /5152N12026W/70 N KAMLOOPS - /4911N11917W/10 E OLIVER. ISOLD CB TOPS 240 GVG 5SM TSRA G25KT. TS OBSD ON RDR/LTNG DTCTR. AREA QS. INTSFYG NXT 3 HRS. END/GFA31/JLS/FTW/CMAC-W