METAR: CYYC 012300Z 33009KT 270V020 40SM BKN100 OVC220 21/M04 A2996 RMK AC6CI2 SLP156 DENSITY ALT 5100FT

TAF: CYYC 012040Z 0121/0218 30015G25KT P6SM SCT100 BKN200 FM012300 33015G25KT P6SM VCSH BKN080 FM020300 36012G22KT P6SM BKN100 FM020600 35008KT P6SM SCT060 BKN180 TEMPO 0206/0218 BKN060 RMK NXT FCST BY 020000Z