| 19:56 CST |  Overcast | -3°C / 27°F | -6°C / 21°F | 80% | 1023 mb (30.21 in) | ENE 19 kph (ENE 11.5 mph) | - | 10SM |
| | KSYN 230156Z AUTO 07010KT 10SM BKN025 OVC055 M03/M06 A3020 RMK AO2 T10261062 |
| 19:36 CST |  Overcast | -3°C / 27°F | -6°C / 21°F | 80% | 1023 mb (30.21 in) | ENE 15 kph (ENE 9.2 mph) | - | 10SM |
| | KSYN 230136Z AUTO 07008KT 10SM OVC025 M03/M06 A3021 RMK AO2 T10261064 |
| 19:15 CST |  Overcast | -3°C / 27°F | -6°C / 21°F | 80% | 1023 mb (30.21 in) | ENE 15 kph (ENE 9.2 mph) | - | 10SM |
| | KSYN 230115Z AUTO 06008KT 10SM OVC025 M03/M06 A3021 RMK AO2 T10271064 |
| 18:56 CST |  Overcast | -3°C / 27°F | -6°C / 21°F | 80% | 1023 mb (30.21 in) | ENE 15 kph (ENE 9.2 mph) | - | 10SM |
| | KSYN 230056Z AUTO 06008KT 10SM OVC023 M03/M06 A3020 RMK AO2 T10271063 |
| 18:36 CST |  Overcast | -3°C / 27°F | -6°C / 21°F | 80% | 1023 mb (30.21 in) | ENE 17 kph (ENE 10.4 mph) | - | 10SM |
| | KSYN 230036Z AUTO 06009KT 10SM OVC020 M03/M06 A3020 RMK AO2 T10271063 |
| 18:15 CST |  Overcast | -3°C / 27°F | -6°C / 21°F | 80% | 1023 mb (30.21 in) | ENE 17 kph (ENE 10.4 mph) | - | 10SM |
| | KSYN 230015Z AUTO 06009KT 10SM OVC020 M03/M06 A3020 RMK AO2 T10281061 |
| 17:56 CST |  Overcast | -3°C / 27°F | -6°C / 21°F | 80% | 1022 mb (30.18 in) | NE 13 kph (NE 8.1 mph) | - | 10SM |
| | KSYN 222356Z AUTO 05007KT 10SM OVC020 M03/M06 A3019 RMK AO2 T10281062 11026 21040 |
| 17:36 CST |  Overcast | -3°C / 27°F | -6°C / 21°F | 80% | 1022 mb (30.18 in) | NE 11 kph (NE 6.9 mph) | - | 10SM |
| | KSYN 222336Z AUTO 05006KT 10SM OVC020 M03/M06 A3019 RMK AO2 T10281060 |
| 17:16 CST |  Overcast | -3°C / 27°F | -6°C / 21°F | 80% | 1022 mb (30.18 in) | NE 13 kph (NE 8.1 mph) | - | 10SM |
| | KSYN 222316Z AUTO 05007KT 10SM OVC020 M03/M06 A3018 RMK AO2 T10271060 |
| 16:55 CST |  Overcast | -3°C / 27°F | -6°C / 21°F | 80% | 1022 mb (30.18 in) | NE 13 kph (NE 8.1 mph) | - | 10SM |
| | KSYN 222255Z AUTO 05007KT 10SM OVC020 M03/M06 A3018 RMK AO2 T10271060 |
| 16:35 CST |  Overcast | -3°C / 27°F | -6°C / 21°F | 80% | 1022 mb (30.18 in) | ENE 15 kph (ENE 9.2 mph) | - | 10SM |
| | KSYN 222235Z AUTO 07008KT 10SM OVC020 M03/M06 A3018 RMK AO2 T10261060 |
| 16:15 CST |  Overcast | -3°C / 27°F | -6°C / 21°F | 80% | 1022 mb (30.18 in) | ENE 17 kph (ENE 10.4 mph) | - | 10SM |
| | KSYN 222215Z AUTO 07009KT 10SM OVC020 M03/M06 A3017 RMK AO2 T10271062 |
| 15:56 CST |  Overcast | -3°C / 27°F | -6°C / 21°F | 80% | 1022 mb (30.18 in) | E 17 kph (E 10.4 mph) | - | 10SM |
| | KSYN 222156Z AUTO 08009KT 10SM OVC020 M03/M06 A3017 RMK AO2 T10271063 |
| 15:35 CST |  Overcast | -3°C / 27°F | -6°C / 21°F | 80% | 1022 mb (30.18 in) | ENE 17 kph (ENE 10.4 mph) | - | 10SM |
| | KSYN 222135Z AUTO 07009KT 10SM OVC020 M03/M06 A3017 RMK AO2 T10281064 |
| 15:16 CST |  Overcast | -3°C / 27°F | -6°C / 21°F | 80% | 1021 mb (30.15 in) | ENE 15 kph (ENE 9.2 mph) | - | 10SM |
| | KSYN 222116Z AUTO 07008KT 10SM OVC020 M03/M06 A3016 RMK AO2 T10301065 |
| 14:56 CST |  Overcast | -3°C / 27°F | -6°C / 21°F | 80% | 1021 mb (30.15 in) | ENE 17 kph (ENE 10.4 mph) | - | 10SM |
| | KSYN 222056Z AUTO 07009KT 10SM OVC018 M03/M06 A3016 RMK AO2 T10301065 |
| 14:36 CST |  Overcast | -3°C / 27°F | -6°C / 21°F | 80% | 1022 mb (30.18 in) | E 17 kph (E 10.4 mph) | - | 7SM |
| | KSYN 222036Z AUTO 08009KT 7SM OVC018 M03/M06 A3017 RMK AO2 T10311065 |
| 14:16 CST |  Overcast | -3°C / 27°F | -7°C / 19°F | 74% | 1021 mb (30.15 in) | ENE 17 kph (ENE 10.4 mph) | - | 7SM |
| | KSYN 222016Z AUTO 07009KT 7SM SCT018 BKN025 OVC030 M03/M07 A3016 RMK AO2 T10311066 |
| 13:55 CST |  Overcast | -3°C / 27°F | -7°C / 19°F | 74% | 1021 mb (30.15 in) | E 15 kph (E 9.2 mph) | - | 7SM |
| | KSYN 221955Z AUTO 08008KT 7SM SCT016 OVC028 M03/M07 A3016 RMK AO2 T10321068 |
| 13:35 CST |  Overcast | -3°C / 27°F | -7°C / 19°F | 74% | 1021 mb (30.15 in) | E 24 kph (E 15 mph) | - | 7SM |
| | KSYN 221935Z AUTO 08013KT 7SM BKN016 OVC028 M03/M07 A3015 RMK AO2 T10341068 |
| 13:16 CST |  Overcast | -3°C / 27°F | -7°C / 19°F | 74% | 1021 mb (30.15 in) | E 17 kph (E 10.4 mph) | - | 10SM |
| | KSYN 221916Z AUTO 08009KT 10SM BKN016 OVC023 M03/M07 A3015 RMK AO2 T10351071 |
| 12:56 CST |  Overcast | -4°C / 25°F | -7°C / 19°F | 80% | 1021 mb (30.15 in) | E 19 kph (E 11.5 mph) | - | 10SM |
| | KSYN 221856Z AUTO 09010KT 10SM BKN016 OVC023 M04/M07 A3015 RMK AO2 T10361070 |
| 12:36 CST |  Overcast | -4°C / 25°F | -7°C / 19°F | 80% | 1021 mb (30.15 in) | E 19 kph (E 11.5 mph) | - | 10SM |
| | KSYN 221836Z AUTO 09010KT 10SM BKN016 OVC025 M04/M07 A3016 RMK AO2 T10371071 |
| 12:16 CST |  Overcast | -4°C / 25°F | -7°C / 19°F | 80% | 1022 mb (30.18 in) | E 19 kph (E 11.5 mph) | - | 10SM |
| | KSYN 221816Z AUTO 09010KT 10SM SCT016 OVC025 M04/M07 A3017 RMK AO2 T10381071 |
| 11:55 CST |  Overcast | -4°C / 25°F | -7°C / 19°F | 80% | 1022 mb (30.18 in) | E 17 kph (E 10.4 mph) | - | 10SM |
| | KSYN 221755Z AUTO 08009KT 10SM SCT016 OVC025 M04/M07 A3018 RMK AO2 T10401072 11040 21052 |
| 11:36 CST |  Overcast | -4°C / 25°F | -7°C / 19°F | 80% | 1022 mb (30.18 in) | E 19 kph (E 11.5 mph) | - | 10SM |
| | KSYN 221736Z AUTO 08010KT 10SM BKN016 OVC023 M04/M07 A3018 RMK AO2 T10401072 |
| 11:15 CST |  Overcast | -4°C / 25°F | -7°C / 19°F | 80% | 1022 mb (30.18 in) | E 19 kph (E 11.5 mph) | - | 10SM |
| | KSYN 221715Z AUTO 08010KT 10SM BKN016 OVC023 M04/M07 A3018 RMK AO2 T10411071 |
| 10:55 CST |  Overcast | -4°C / 25°F | -7°C / 19°F | 80% | 1022 mb (30.18 in) | E 17 kph (E 10.4 mph) | - | 7SM |
| | KSYN 221655Z AUTO 08009KT 7SM SCT016 OVC025 M04/M07 A3019 RMK AO2 T10421070 |
| 10:35 CST |  Overcast Hazy | -4°C / 25°F | -7°C / 19°F | 80% | 1022 mb (30.18 in) | ENE 17 kph (ENE 10.4 mph) | - | 5SM |
| | KSYN 221635Z AUTO 07009KT 5SM HZ SCT016 BKN025 OVC048 M04/M07 A3019 RMK AO2 T10441071 |
| 10:15 CST |  Overcast Hazy | -4°C / 25°F | -7°C / 19°F | 80% | 1022 mb (30.18 in) | E 17 kph (E 10.4 mph) | - | 5SM |
| | KSYN 221615Z AUTO 08009KT 5SM HZ SCT040 BKN048 OVC055 M04/M07 A3019 RMK AO2 T10451070 |
| 09:56 CST |  Overcast Light Snow | -5°C / 23°F | -7°C / 19°F | 86% | 1022 mb (30.18 in) | ENE 13 kph (ENE 8.1 mph) | - | 2SM |
| | KSYN 221556Z AUTO 07007KT 2SM -SN SCT017 SCT025 OVC046 M05/M07 A3018 RMK AO2 T10471070 |
| 09:36 CST |  Overcast Light Snow | -5°C / 23°F | -7°C / 19°F | 86% | 1022 mb (30.18 in) | ENE 11 kph (ENE 6.9 mph) | - | 2SM |
| | KSYN 221536Z AUTO 07006KT 2SM -SN BKN037 OVC044 M05/M07 A3019 RMK AO2 T10501070 |
| 09:16 CST |  Overcast Light Snow | -5°C / 23°F | -7°C / 19°F | 86% | 1022 mb (30.18 in) | ENE 11 kph (ENE 6.9 mph) | - | 1 3/4SM |
| | KSYN 221516Z AUTO 06006KT 1 3/4SM -SN OVC037 M05/M07 A3018 RMK AO2 T10501070 |
| 08:56 CST |  Overcast Light Snow | -5°C / 23°F | -7°C / 19°F | 86% | 1022 mb (30.18 in) | ENE 11 kph (ENE 6.9 mph) | - | 2SM |
| | KSYN 221456Z AUTO 07006KT 2SM -SN SCT035 OVC055 M05/M07 A3018 RMK AO2 T10501070 |
| 08:36 CST |  Overcast Light Snow | -5°C / 23°F | -7°C / 19°F | 86% | 1022 mb (30.18 in) | ENE 13 kph (ENE 8.1 mph) | - | 2 1/2SM |
| | KSYN 221436Z AUTO 07007KT 2 1/2SM -SN OVC049 M05/M07 A3018 RMK AO2 T10501070 |
| 08:16 CST |  Overcast Light Snow | -5°C / 23°F | -7°C / 19°F | 86% | 1022 mb (30.18 in) | ENE 13 kph (ENE 8.1 mph) | - | 1 1/2SM |
| | KSYN 221416Z AUTO 07007KT 1 1/2SM -SN SCT012 OVC047 M05/M07 A3017 RMK AO2 T10521071 |
| 07:56 CST |  Overcast Light Snow | -5°C / 23°F | -7°C / 19°F | 86% | 1021 mb (30.15 in) | ENE 13 kph (ENE 8.1 mph) | - | 1 1/2SM |
| | KSYN 221356Z AUTO 07007KT 1 1/2SM -SN OVC012 M05/M07 A3016 RMK AO2 T10521071 |
| 07:35 CST |  Overcast Light Snow | -5°C / 23°F | -7°C / 19°F | 86% | 1021 mb (30.15 in) | ENE 13 kph (ENE 8.1 mph) | - | 3SM |
| | KSYN 221335Z AUTO 07007KT 3SM -SN SCT012 OVC044 M05/M07 A3015 RMK AO2 T10511073 |
| 07:16 CST |  Overcast Light Snow | -5°C / 23°F | -7°C / 19°F | 86% | 1021 mb (30.15 in) | E 17 kph (E 10.4 mph) | - | 5SM |
| | KSYN 221316Z AUTO 08009KT 5SM -SN BKN038 OVC048 M05/M07 A3015 RMK AO2 T10501075 |
| 06:55 CST |  Overcast Hazy | -5°C / 23°F | -7°C / 19°F | 86% | 1021 mb (30.15 in) | E 17 kph (E 10.4 mph) | - | 5SM |
| | KSYN 221255Z AUTO 08009KT 5SM HZ BKN038 OVC044 M05/M07 A3014 RMK AO2 T10501075 |
| 06:35 CST |  Overcast | -5°C / 23°F | -7°C / 19°F | 86% | 1020 mb (30.12 in) | E 17 kph (E 10.4 mph) | - | 7SM |
| | KSYN 221235Z AUTO 08009KT 7SM SCT038 OVC044 M05/M07 A3013 RMK AO2 T10501075 |
| 06:15 CST |  Overcast | -5°C / 23°F | -7°C / 19°F | 86% | 1020 mb (30.12 in) | E 17 kph (E 10.4 mph) | - | 7SM |
| | KSYN 221215Z AUTO 08009KT 7SM BKN039 OVC045 M05/M07 A3013 RMK AO2 T10501075 |
| 05:56 CST |  Overcast | -5°C / 23°F | -8°C / 18°F | 80% | 1020 mb (30.12 in) | E 22 kph (E 13.8 mph) | - | 10SM |
| | KSYN 221156Z AUTO 08012KT 10SM OVC041 M05/M08 A3013 RMK AO2 T10511076 11051 21055 |
| 05:36 CST |  Overcast | -5°C / 23°F | -7°C / 19°F | 86% | 1020 mb (30.12 in) | ENE 20 kph (ENE 12.7 mph) | - | 10SM |
| | KSYN 221136Z AUTO 07011KT 10SM SCT041 BKN047 OVC060 M05/M07 A3013 RMK AO2 T10511075 |
| 05:15 CST |  Overcast | -5°C / 23°F | -8°C / 18°F | 80% | 1020 mb (30.12 in) | E 19 kph (E 11.5 mph) | - | 7SM |
| | KSYN 221115Z AUTO 08010KT 7SM BKN040 BKN047 OVC060 M05/M08 A3013 RMK AO2 T10521076 |
| 04:55 CST |  Overcast | -5°C / 23°F | -7°C / 19°F | 86% | 1020 mb (30.12 in) | ENE 19 kph (ENE 11.5 mph) | - | 7SM |
| | KSYN 221055Z AUTO 07010KT 7SM OVC042 M05/M07 A3013 RMK AO2 T10521075 |
| 04:36 CST |  Overcast Light Snow | -5°C / 23°F | -7°C / 19°F | 86% | 1020 mb (30.12 in) | ENE 17 kph (ENE 10.4 mph) | - | 7SM |
| | KSYN 221036Z AUTO 07009KT 7SM -SN OVC044 M05/M07 A3013 RMK AO2 T10531075 |
| 04:16 CST |  Overcast Light Snow | -5°C / 23°F | -7°C / 19°F | 86% | 1021 mb (30.15 in) | ENE 15 kph (ENE 9.2 mph) | - | 5SM |
| | KSYN 221016Z AUTO 07008KT 5SM -SN SCT044 BKN070 OVC080 M05/M07 A3014 RMK AO2 T10531075 |
| 03:55 CST |  Overcast Light Snow | -5°C / 23°F | -7°C / 19°F | 86% | 1021 mb (30.15 in) | ENE 17 kph (ENE 10.4 mph) | - | 2 1/2SM |
| | KSYN 220955Z AUTO 07009KT 2 1/2SM -SN OVC080 M05/M07 A3014 RMK AO2 T10551073 |
| 03:36 CST |  Overcast Light Snow | -5°C / 23°F | -7°C / 19°F | 86% | 1021 mb (30.15 in) | ENE 15 kph (ENE 9.2 mph) | - | 2 1/2SM |
| | KSYN 220936Z AUTO 07008KT 2 1/2SM -SN SCT025 OVC080 M05/M07 A3014 RMK AO2 T10551073 |
| 03:16 CST |  Overcast Light Snow | -5°C / 23°F | -7°C / 19°F | 86% | 1021 mb (30.15 in) | ENE 13 kph (ENE 8.1 mph) | - | 2 1/2SM |
| | KSYN 220916Z AUTO 07007KT 2 1/2SM -SN SCT012 SCT018 OVC027 M05/M07 A3015 RMK AO2 T10551073 |
| 02:56 CST |  Overcast Light Snow | -5°C / 23°F | -7°C / 19°F | 86% | 1021 mb (30.15 in) | E 11 kph (E 6.9 mph) | - | 1 3/4SM |
| | KSYN 220856Z AUTO 08006KT 1 3/4SM -SN OVC010 M05/M07 A3015 RMK AO2 T10551071 |
| 02:36 CST |  Overcast Light Snow | -5°C / 23°F | -7°C / 19°F | 86% | 1021 mb (30.15 in) | E 9 kph (E 5.8 mph) | - | 1 1/4SM |
| | KSYN 220836Z AUTO 08005KT 1 1/4SM -SN OVC010 M05/M07 A3016 RMK AO2 T10551070 |
| 02:16 CST |  Overcast Light Snow | -5°C / 23°F | -7°C / 19°F | 86% | 1021 mb (30.15 in) | ENE 13 kph (ENE 8.1 mph) | - | 1 1/4SM |
| | KSYN 220816Z AUTO 07007KT 1 1/4SM -SN OVC010 M05/M07 A3015 RMK AO2 T10551071 |
| 01:56 CST |  Overcast Light Snow | -5°C / 23°F | -7°C / 19°F | 86% | 1021 mb (30.15 in) | ENE 11 kph (ENE 6.9 mph) | - | 1 1/4SM |
| | KSYN 220756Z AUTO 07006KT 1 1/4SM -SN OVC010 M05/M07 A3014 RMK AO2 T10551071 |
| 01:36 CST |  Overcast Light Snow | -5°C / 23°F | -7°C / 19°F | 86% | 1020 mb (30.12 in) | ENE 15 kph (ENE 9.2 mph) | - | 1 1/2SM |
| | KSYN 220736Z AUTO 07008KT 1 1/2SM -SN OVC008 M05/M07 A3013 RMK AO2 T10551071 |
| 01:15 CST |  Overcast Light Snow | -5°C / 23°F | -7°C / 19°F | 86% | 1020 mb (30.12 in) | ENE 15 kph (ENE 9.2 mph) | - | 1 1/2SM |
| | KSYN 220715Z AUTO 07008KT 1 1/2SM -SN OVC010 M05/M07 A3013 RMK AO2 T10551072 |
| 00:56 CST |  Overcast Light Snow | -5°C / 23°F | -7°C / 19°F | 86% | 1020 mb (30.12 in) | E 13 kph (E 8.1 mph) | - | 1 3/4SM |
| | KSYN 220656Z AUTO 08007KT 1 3/4SM -SN OVC012 M05/M07 A3013 RMK AO2 T10531072 |
| 00:36 CST |  Overcast Light Snow | -5°C / 23°F | -7°C / 19°F | 86% | 1020 mb (30.12 in) | E 17 kph (E 10.4 mph) | - | 1 3/4SM |
| | KSYN 220636Z AUTO 08009KT 1 3/4SM -SN BKN010 OVC017 M05/M07 A3013 RMK AO2 T10531072 |
| 00:16 CST |  Overcast Light Snow | -5°C / 23°F | -7°C / 19°F | 86% | 1020 mb (30.12 in) | E 15 kph (E 9.2 mph) | - | 2SM |
| | KSYN 220616Z AUTO 08008KT 2SM -SN OVC016 M05/M07 A3013 RMK AO2 T10521071 |