KORD - Chicago/O'Hare Intl, IL, US
| Potential Impact | None | Slight | Moderate | High |
| Time | 10/08Z | 10/09Z | 10/10Z | 10/11Z | 10/12Z | 10/13Z | 10/14Z | 10/15Z | 10/16Z | 10/17Z | 10/18Z | 10/19Z | 10/20Z |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 68 | 69 | 69 | 72 | 77 | 80 | 83 | 85 | 86 | 87 | 89 | 91 | 90 |
| Dewpt | 66 | 66 | 67 | 69 | 71 | 72 | 72 | 72 | 73 | 73 | 74 | 74 | 72 |
| Altim | 1009.9 | 1009.6 | 1009.6 | 1009.6 | 1009.2 | 1008.5 | 1008.2 | 1008.2 | 1008.5 | 1007.2 | 1006.2 | 1006.2 | 1005.5 |
| VIS | 6 | 6 | 7 | 10+ | 10+ | 10+ | 10+ | 10+ | 10+ | 10+ | 10+ | 10+ | 10+ |
| CIG | -- | -- | -- | 4900 | -- | -- | 30000 | 30000 | 3200 | 30000 | 3200 | 30000 | 3700 |
| Cover | FEW | FEW | SCT | BKN | SCT | FEW | BKN | BKN | BKN | BKN | BKN | BKN | OVC |
| FltCat | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR |
| WX | BR | BR | -- | MIFG | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| WDir | 0 | 0 | 0 | 180 | 200 | 200 | 230 | 230 | 230 | 220 | 200 | 200 | 210 |
| WSpd | 0 | 0 | 0 | 3 | 7 | 8 | 10 | 14 | 8 | 10 | 12 | 13 | 15 |
| WGst | -- | -- | -- | -- | -- | 18 | 19 | 20 | 19 | 19 | -- | 23 | 29 |
METAR KORD 100751Z 00000KT 6SM BR FEW003 FEW030 20/19 A2982 RMK AO2 SLP094 T02000189 $
METAR KORD 100851Z 00000KT 6SM BR FEW003 FEW045 21/19 A2981 RMK AO2 SLP089 T02060189 56018 $
METAR KORD 100951Z 00000KT 7SM SCT050 21/19 A2981 RMK AO2 SLP089 T02060194 $
METAR KORD 101051Z 18003KT 10SM MIFG BKN049 22/21 A2981 RMK AO2 SLP088 T02220206 $
METAR KORD 101151Z 20007KT 10SM FEW050 SCT300 25/22 A2980 RMK AO2 SLP084 70009 T02500217 10250 20200 58004
METAR KORD 101251Z 20008G18KT 10SM FEW050 FEW300 27/22 A2978 RMK AO2 SLP077 T02670222
METAR KORD 101351Z 23010G19KT 10SM BKN300 28/22 A2977 RMK AO2 SLP074 T02830222
METAR KORD 101451Z 23014G20KT 10SM FEW028 BKN300 29/22 A2977 RMK AO2 SLP074 T02940222 55009
METAR KORD 101551Z 23008G19KT 190V260 10SM BKN032 BKN046 30/23 A2978 RMK AO2 SLP076 T03000228
METAR KORD 101651Z 22010G19KT 10SM SCT031 BKN300 31/23 A2974 RMK AO2 SLP066 T03060228
METAR KORD 101751Z 20012KT 10SM BKN032 BKN300 32/23 A2971 RMK AO2 SLP056 T03170233 10317 20250 58019
METAR KORD 101851Z 20013G23KT 10SM SCT036 BKN300 33/23 A2971 RMK AO2 SLP055 T03280233
METAR KORD 101951Z 21015G29KT 10SM BKN037 BKN060 OVC350 32/22 A2969 RMK AO2 PK WND 21029/1946 SLP047 T03220222