000 FTUS41 KBTV 221720 TAFMSS TAF KMSS 221720Z 2218/2318 31008KT P6SM SKC FM222100 24012G18KT P6SM SKC FM222300 22010KT P6SM SKC FM231300 21014G21KT P6SM SCT160 FM231600 21018G29KT P6SM BKN120=