TAF (Terminal Aerodrome Forecast)
KMDW 031130Z 0312/0418 27007KT P6SM SCT030 FM031800 23010G17KT P6SM FEW030 BKN250 FM040200 21012G23KT P6SM SCT100 BKN200
 
METAR (METeorological Aerodrome Report)
KMDW 031153Z 27005KT 10SM FEW250 M07/M10 A3049 RMK AO2 SLP343 T10671100 11061 21072 53006
KMDW 031053Z 27005KT 10SM SCT250 M07/M11 A3048 RMK AO2 SLP340 T10721106
KMDW 030953Z 27006KT 10SM FEW250 M07/M11 A3048 RMK AO2 SLP338 T10671106
KMDW 030853Z 28006KT 10SM CLR M07/M11 A3047 RMK AO2 SLP335 T10671106 53001