639 SACN31 KWBC 152000 RRA MTRYTR METAR CYTR 152000Z 09006KT 060V150 12SM -TSRA FEW009 OVC035 03/02 A2943 RMK SF1SC8 DENSITY ALT -445FT OCNL LTGCC N CB EMBD N MOV E SLP970