FTUS42 KMHX 211720 TAFOAJ TAF KOAJ 211720Z 2118/2218 26009G18KT P6SM SCT040 FM212200 30006KT P6SM SCT110 FM220100 36005KT P6SM SCT100 FM220900 30007KT P6SM SKC FM221500 28012G20KT P6SM SKC AMD LTD TO CLD VIS AND WIND=