636 FTUS41 KRLX 121120 TAFEKN TAF KEKN 121120Z 1212/1312 27003KT P6SM BKN020 FM121400 24005KT P6SM SCT020 FM122100 24007KT P6SM FEW250 FM130000 VRB03KT P6SM FEW150 FM131100 22004KT P6SM SCT040=