606 FTUS44 KLCH 171720 TAFLFT TAF KLFT 171720Z 1718/1818 36019G29KT P6SM SCT025 OVC250 TEMPO 1718/1721 OVC025 FM172300 01014G22KT P6SM OVC250 FM180300 01010KT P6SM BKN250 FM181200 01006KT P6SM SCT250 FM181500 02010KT P6SM SCT250=