METAR: CYYC 241700Z 10004KT 310V120 10SM BKN018 OVC180 12/08 A3009 RMK ST5AC3 CONTRAILS SLP209 DENSITY ALT 3900FT

TAF: CYYC 241440Z 2415/2512 VRB03KT P6SM FEW020 BKN250 TEMPO 2415/2419 BKN020 FM241900 12010KT P6SM FEW030 BKN180 BECMG 2501/2503 16005KT BECMG 2506/2508 19005KT RMK NXT FCST BY 241800Z