743 FTUS43 KLMK 041720 TAFLEX TAF KLEX 041720Z 0418/0518 24015G25KT P6SM SCT100 FM042000 27014G25KT P6SM FEW250 FM042200 30012KT P6SM SCT250 FM050200 36007KT P6SM SCT250 FM051100 10005KT P6SM BKN250 FM051700 17007KT P6SM BKN200=