| 16:55 EST |  Mostly Cloudy | -6°C / 21°F | -15°C / 5°F | 49% | 1016 mb (30 in) | W 22 kph (W 13.8 mph) | - | 10SM |
| | KGTB 112155Z AUTO 27012G17KT 10SM BKN043 M06/M15 A3000 RMK AO2 SLP173 T10621150 |
| 15:55 EST |  Overcast | -6°C / 21°F | -15°C / 5°F | 49% | 1015 mb (29.97 in) | WNW 26 kph (WNW 16.1 mph) | - | 10SM |
| | KGTB 112055Z AUTO 29014G20KT 10SM OVC040 M06/M15 A2996 RMK AO2 SLP159 T10591152 53029 |
| 14:55 EST |  Mostly Cloudy | -5°C / 23°F | -14°C / 7°F | 50% | 1013 mb (29.91 in) | W 22 kph (W 13.8 mph) | - | 10SM |
| | KGTB 111955Z AUTO 27012G23KT 10SM BKN038 M05/M14 A2992 RMK AO2 SLP146 T10541142 |
| 13:55 EST |  Partly Cloudy | -6°C / 21°F | -14°C / 7°F | 54% | 1012 mb (29.88 in) | W 22 kph (W 13.8 mph) | - | 10SM |
| | KGTB 111855Z AUTO 28012G20KT 10SM SCT035 M06/M14 A2989 RMK AO2 SLP137 T10581144 |
| 12:55 EST |  Partly Cloudy | -5°C / 23°F | -15°C / 5°F | 46% | 1012 mb (29.88 in) | W 22 kph (W 13.8 mph) | - | 10SM |
| | KGTB 111755Z AUTO 28012G24KT 250V310 10SM SCT041 M05/M15 A2987 RMK AO2 PK WND 30027/1724 SLP129 T10541148 11049 21071 53006 |
| 11:55 EST |  Mostly Cloudy | -5°C / 23°F | -15°C / 5°F | 46% | 1011 mb (29.85 in) | WNW 22 kph (WNW 13.8 mph) | - | 10SM |
| | KGTB 111655Z AUTO 29012G23KT 10SM BKN041 M05/M15 A2986 RMK AO2 PK WND 29026/1606 SLP125 T10541151 |
| 10:55 EST |  Partly Cloudy | -5°C / 23°F | -14°C / 7°F | 50% | 1011 mb (29.85 in) | W 32 kph (W 19.6 mph) | - | 10SM |
| | KGTB 111555Z AUTO 28017G22KT 10SM SCT038 M05/M14 A2986 RMK AO2 PK WND 29028/1535 SLP123 T10531140 |
| 09:55 EST |  Clear | -6°C / 21°F | -14°C / 7°F | 54% | 1011 mb (29.85 in) | WNW 22 kph (WNW 13.8 mph) | - | 10SM |
| | KGTB 111455Z AUTO 29012G22KT 10SM CLR M06/M14 A2985 RMK AO2 PK WND 27026/1415 CIG 032 RWY03 SLP123 T10621143 53018 |
| 08:55 EST |  Partly Cloudy | -7°C / 19°F | -14°C / 7°F | 58% | 1010 mb (29.83 in) | W 26 kph (W 16.1 mph) | - | 10SM |
| | KGTB 111355Z AUTO 28014G23KT 10SM SCT055 M07/M14 A2984 RMK AO2 CLDS LWR RWY03 SLP116 T10691143 |
| 07:55 EST |  Partly Cloudy | -7°C / 19°F | -14°C / 7°F | 58% | 1009 mb (29.8 in) | WNW 22 kph (WNW 13.8 mph) | - | 10SM |
| | KGTB 111255Z AUTO 29012G24KT 10SM FEW043 M07/M14 A2981 RMK AO2 SLP107 T10681144 |
| 06:55 EST |  Mostly Cloudy | -7°C / 19°F | -14°C / 7°F | 58% | 1009 mb (29.8 in) | WNW 20 kph (WNW 12.7 mph) | - | 10SM |
| | KGTB 111155Z AUTO 29011G21KT 10SM BKN060 M07/M14 A2980 RMK AO2 PK WND 29026/1100 CIG 050 RWY03 SLP104 60000 T10651143 11053 21069 52018 |
| 06:07 EST |  Overcast | -6°C / 21°F | -14°C / 7°F | 54% | 1009 mb (29.8 in) | W 19 kph (W 11.5 mph) | - | 10SM |
| | KGTB 111107Z AUTO 28010G26KT 260V320 10SM FEW013 OVC032 M06/M14 A2979 RMK AO2 PK WND 29026/1100 SLP099 |
| 05:55 EST |  Overcast | -6°C / 21°F | -13°C / 9°F | 58% | 1008 mb (29.77 in) | W 22 kph (W 13.8 mph) | 0.00 mm (0.00 in) | 10SM |
| | KGTB 111055Z AUTO 28012G21KT 10SM OVC025 M06/M13 A2978 RMK AO2 SNB1010E1053 SLP099 P0000 T10621134 |
| 05:53 EST |  Overcast | -6°C / 21°F | -13°C / 9°F | 58% | 1008 mb (29.77 in) | WNW 20 kph (WNW 12.7 mph) | - | 10SM |
| | KGTB 111053Z AUTO 29011G22KT 10SM OVC025 M06/M13 A2978 RMK AO2 SNB1010E1053 SLP098 |
| 05:37 EST |  Overcast Light Snow | -6°C / 21°F | -13°C / 9°F | 58% | 1008 mb (29.77 in) | W 26 kph (W 16.1 mph) | - | 10SM |
| | KGTB 111037Z AUTO 28014G23KT 10SM -SN FEW011 OVC027 M06/M13 A2977 RMK AO2 SNB1010 SLP095 |
| 05:19 EST |  Overcast Light Snow | -6°C / 21°F | -14°C / 7°F | 54% | 1008 mb (29.77 in) | W 24 kph (W 15 mph) | - | 10SM |
| | KGTB 111019Z AUTO 28013G20KT 260V320 10SM -SN FEW009 OVC029 M06/M14 A2977 RMK AO2 SNB1010 CIG 023 RWY03 SLP093 |
| 05:18 EST |  Overcast Light Snow | -6°C / 21°F | -14°C / 7°F | 54% | 1008 mb (29.77 in) | W 22 kph (W 13.8 mph) | - | 10SM |
| | KGTB 111018Z AUTO 28012G20KT 260V320 10SM -SN FEW009 OVC030 M06/M14 A2977 RMK AO2 SNB1010 CIG 023 RWY03 SLP093 |
| 05:12 EST |  Overcast Light Snow | -7°C / 19°F | -14°C / 7°F | 58% | 1008 mb (29.77 in) | W 19 kph (W 11.5 mph) | - | 10SM |
| | KGTB 111012Z AUTO 28010G19KT 250V320 10SM -SN FEW009 OVC028 M07/M14 A2977 RMK AO2 SNB1010 SLP093 |
| 05:11 EST |  Overcast Light Snow | -7°C / 19°F | -14°C / 7°F | 58% | 1008 mb (29.77 in) | WNW 15 kph (WNW 9.2 mph) | - | 10SM |
| | KGTB 111011Z AUTO 29008G19KT 260V320 10SM -SN FEW009 OVC030 M07/M14 A2977 RMK AO2 SNB1010 CIG 024 RWY03 SLP093 |
| 05:10 EST |  Overcast Light Snow | -7°C / 19°F | -14°C / 7°F | 58% | 1008 mb (29.77 in) | W 19 kph (W 11.5 mph) | - | 10SM |
| | KGTB 111010Z AUTO 28010G19KT 10SM -SN FEW016 OVC030 M07/M14 A2977 RMK AO2 SNB1010 CIG 024 RWY03 SLP093 |
| 04:55 EST |  Mostly Cloudy | -7°C / 19°F | -14°C / 7°F | 58% | 1008 mb (29.77 in) | WNW 24 kph (WNW 15 mph) | - | 10SM |
| | KGTB 110955Z AUTO 29013G20KT 10SM BKN036 M07/M14 A2976 RMK AO2 PK WND 29026/0931 CIG 026 RWY03 SLP091 T10681139 |
| 03:55 EST |  Partly Cloudy | -7°C / 19°F | -13°C / 9°F | 63% | 1007 mb (29.74 in) | WNW 24 kph (WNW 15 mph) | 0.00 mm (0.00 in) | 10SM |
| | KGTB 110855Z AUTO 29013G24KT 260V320 10SM FEW100 M07/M13 A2975 RMK AO2 PK WND 30032/0801 UPE0817DZB0817E0821 SLP085 P0000 60000 T10671132 53022 |
| 03:21 EST |  Mostly Cloudy | -6°C / 21°F | -13°C / 9°F | 58% | 1007 mb (29.74 in) | W 28 kph (W 17.3 mph) | - | 10SM |
| | KGTB 110821Z AUTO 28015G25KT 10SM BKN034 M06/M13 A2973 RMK AO2 PK WND 30032/0801 UPE0817DZB0817E0821 SLP080 |
| 02:55 EST |  Overcast Unknown Precip | -5°C / 23°F | -12°C / 10°F | 58% | 1006 mb (29.71 in) | W 20 kph (W 12.7 mph) | 0.00 mm (0.00 in) | 9SM |
| | KGTB 110755Z AUTO 28011G27KT 9SM UP OVC034 M05/M12 A2972 RMK AO2 PK WND 28028/0657 UPE0718B0748SNB0659E0713 SLP076 P0000 T10541120 |
| 02:48 EST |  Overcast Unknown Precip | -5°C / 23°F | -12°C / 10°F | 58% | 1006 mb (29.71 in) | W 32 kph (W 19.6 mph) | - | 10SM |
| | KGTB 110748Z AUTO 28017G27KT 10SM UP FEW026 OVC037 M05/M12 A2972 RMK AO2 PK WND 28028/0657 UPE0718B0748SNB0659E0713 SLP075 |
| 02:18 EST |  Overcast | -5°C / 23°F | -12°C / 10°F | 58% | 1006 mb (29.71 in) | W 19 kph (W 11.5 mph) | - | 10SM |
| | KGTB 110718Z AUTO 28010G24KT 10SM OVC032 M05/M12 A2971 RMK AO2 PK WND 28028/0657 UPE0718SNB0659E0713 SLP071 |
| 02:13 EST |  Overcast Unknown Precip | -5°C / 23°F | -12°C / 10°F | 58% | 1006 mb (29.71 in) | W 20 kph (W 12.7 mph) | - | 6SM |
| | KGTB 110713Z AUTO 28011G24KT 6SM UP HZ OVC030 M05/M12 A2970 RMK AO2 PK WND 28028/0657 SNB0659E0713 SLP070 |
| 02:03 EST |  Overcast Light Snow | -5°C / 23°F | -11°C / 12°F | 63% | 1006 mb (29.71 in) | WNW 24 kph (WNW 15 mph) | - | 6SM |
| | KGTB 110703Z AUTO 29013G28KT 6SM -SN OVC029 M05/M11 A2970 RMK AO2 PK WND 28028/0657 UPE0659SNB0659 SLP068 |
| 01:55 EST |  Overcast Unknown Precip | -6°C / 21°F | -11°C / 12°F | 68% | 1005 mb (29.68 in) | W 28 kph (W 17.3 mph) | 0.00 mm (0.00 in) | 8SM |
| | KGTB 110655Z AUTO 28015G22KT 8SM UP OVC032 M06/M11 A2969 RMK AO2 PK WND 27028/0623 UPB0600E0617B0634SNE0600B0641E0653DZB0617E0634 SLP067 P0000 T10561113 |
| 00:55 EST |  Overcast Light Snow | -6°C / 21°F | -10°C / 14°F | 74% | 1005 mb (29.68 in) | W 26 kph (W 16.1 mph) | 0.00 mm (0.00 in) | 4SM |
| | KGTB 110555Z AUTO 28014G29KT 4SM -SN OVC030 M06/M10 A2968 RMK AO2 PK WND 25029/0548 VIS 1 1/4 RWY03 UPB0546E0549SNE0546B0549 SLP062 P0000 60000 T10561103 11039 21060 51024 |
| 00:37 EST |  Overcast Light Snow | -6°C / 21°F | -10°C / 14°F | 74% | 1005 mb (29.68 in) | W 28 kph (W 17.3 mph) | - | 4SM |
| | KGTB 110537Z AUTO 28015G29KT 4SM -SN OVC030 M06/M10 A2967 RMK AO2 PK WND 28029/0532 VIS 1 1/4 RWY03 SLP059 |
| 00:30 EST |  Overcast Light Snow | -6°C / 21°F | -10°C / 14°F | 74% | 1005 mb (29.68 in) | W 26 kph (W 16.1 mph) | - | 3SM |
| | KGTB 110530Z AUTO 28014G27KT 3SM -SN OVC026 M06/M10 A2967 RMK AO2 PK WND 29027/0525 VIS 1 1/2 RWY03 SLP058 |
| 00:26 EST |  Overcast Light Snow | -6°C / 21°F | -10°C / 14°F | 74% | 1004 mb (29.65 in) | W 32 kph (W 19.6 mph) | - | 2 1/2SM |
| | KGTB 110526Z AUTO 28017G27KT 2 1/2SM -SN OVC024 M06/M10 A2966 RMK AO2 PK WND 29027/0525 VIS 1 RWY03 SLP057 |
| 00:10 EST |  Overcast Light Snow | -6°C / 21°F | -9°C / 16°F | 80% | 1004 mb (29.65 in) | W 22 kph (W 13.8 mph) | - | 3SM |
| | KGTB 110510Z AUTO 27012G27KT 3SM -SN OVC024 M06/M09 A2966 RMK AO2 PK WND 27027/0459 VIS 1 RWY03 SLP056 |
| 00:09 EST |  Overcast Light Snow | -6°C / 21°F | -9°C / 16°F | 80% | 1004 mb (29.65 in) | W 22 kph (W 13.8 mph) | - | 2 1/2SM |
| | KGTB 110509Z AUTO 28012G27KT 2 1/2SM R15/P6000FT -SN OVC024 M06/M09 A2966 RMK AO2 PK WND 27027/0459 VIS 1 RWY03 SLP056 |
| 00:05 EST |  Overcast Light Snow | -6°C / 21°F | -9°C / 16°F | 80% | 1004 mb (29.65 in) | W 28 kph (W 17.3 mph) | - | 2SM |
| | KGTB 110505Z AUTO 28015G27KT 2SM R15/P6000FT -SN OVC024 M06/M09 A2966 RMK AO2 PK WND 27027/0459 VIS 3/4 RWY03 SLP056 |
| 00:03 EST |  Overcast Light Snow | -6°C / 21°F | -9°C / 16°F | 80% | 1004 mb (29.65 in) | W 32 kph (W 19.6 mph) | - | 1 3/4SM |
| | KGTB 110503Z AUTO 27017G27KT 1 3/4SM R15/5000VP6000FT -SN OVC024 M06/M09 A2966 RMK AO2 PK WND 27027/0459 VIS 3/4 RWY03 SLP056 |
| 00:01 EST |  Overcast Light Snow | -6°C / 21°F | -9°C / 16°F | 80% | 1004 mb (29.65 in) | W 32 kph (W 19.6 mph) | - | 1 1/2SM |
| | KGTB 110501Z AUTO 28017G29KT 1 1/2SM R15/5000VP6000FT -SN OVC024 M06/M09 A2966 RMK AO2 PK WND 27027/0459 VIS 3/4 RWY03 SLP055 |