AO2 SLP166 T02610217 KSTL 241131Z 2412/2518 VRB05KT P6SM SCT050 FM241400 16007KT P6SM SCT050 FM241800 The alternate airport KSPI (Springfield, Illinois) is also fine, with a ceiling of clouds expected at 3,500 ft. KSPI 241252Z 16003KT 10SM SCT070 24/22 A3007 RMK AO2 SLP177 T02440217 KSPI 241134Z 2412/2512 17005KT P6SM SCT060 FM241500 16011KT