000 FTUS46 KSEW 191720 TAFSEA TAF KSEA 191720Z 1918/2024 07008KT P6SM SKC FM192000 08015G22KT P6SM SKC FM200500 09010KT P6SM SKC FM201100 06007KT P6SM BKN200 FM201800 18010KT P6SM BKN100=