000 FTUS43 KGRR 181720 TAFBTL TAF KBTL 181720Z 1818/1918 28010KT P6SM -SHSN SCT025 BKN035 FM182100 30013G22KT P6SM SCT025 BKN035 FM190300 25009KT P6SM BKN100 FM191000 23014G22KT P6SM BKN100 FM191600 24020G29KT P6SM OVC250=