| 08:22 EST | 
Overcast
Light Snow | -13°C / 9°F | -15°C / 5°F | 85% | 1021 mb
(30.15 in) | W 11 kph
(W 6.9 mph) | - | 8SM |
| | KGTB 231322Z AUTO 27006KT 8SM -SN OVC003 M13/M15 A3015
RMK AO2 SLP229 |
| 08:14 EST |
Overcast
Light Snow | -13°C / 9°F | -15°C / 5°F | 85% | 1021 mb
(30.15 in) | W 13 kph
(W 8.1 mph) | - | 8SM |
| | KGTB 231314Z AUTO 27007KT 8SM -SN OVC004 M13/M15 A3015
RMK AO2 SLP229 |
| 08:11 EST |
Overcast
Light Snow | -13°C / 9°F | -15°C / 5°F | 85% | 1021 mb
(30.15 in) | W 11 kph
(W 6.9 mph) | - | 6SM |
| | KGTB 231311Z AUTO 27006KT 6SM -SN BR OVC005 M13/M15 A3016
RMK AO2 SLP230 |
| 08:00 EST |
Overcast
Light Snow | -13°C / 9°F | -15°C / 5°F | 85% | 1021 mb
(30.15 in) | W 11 kph
(W 6.9 mph) | - | 3SM |
| | KGTB 231300Z AUTO 27006KT 3SM -SN BR OVC006 M13/M15 A3016
RMK AO2 SLP230 |
| 07:58 EST |
Overcast
Light Snow | -13°C / 9°F | -15°C / 5°F | 85% | 1021 mb
(30.15 in) | W 11 kph
(W 6.9 mph) | - | 3SM |
| | KGTB 231258Z AUTO 27006KT 3SM -SN BR OVC007 M13/M15 A3016
RMK AO2 VIS 2 RWY03 CIG 003 RWY03 SLP231 |
| 07:55 EST |
Overcast
Light Snow | -13°C / 9°F | -15°C / 5°F | 85% | 1021 mb
(30.15 in) | W 11 kph
(W 6.9 mph) | 0.00 mm
(0.00 in) | 2 1/2SM |
| | KGTB 231255Z AUTO 27006KT 2 1/2SM -SN BR OVC007 M13/M15 A3016
RMK AO2 VIS 1 3/4 RWY03 CIG 003 RWY03 SLP231 P0000 T11281148 |
| 07:52 EST |
Overcast
Light Snow | -13°C / 9°F | -15°C / 5°F | 85% | 1021 mb
(30.15 in) | W 13 kph
(W 8.1 mph) | - | 2SM |
| | KGTB 231252Z AUTO 27007KT 2SM -SN BR OVC007 M13/M15 A3016
RMK AO2 CIG 003 RWY03 SLP230 |
| 07:47 EST |
Overcast
Light Snow | -13°C / 9°F | -15°C / 5°F | 85% | 1021 mb
(30.15 in) | W 9 kph
(W 5.8 mph) | - | 1 3/4SM |
| | KGTB 231247Z AUTO 27005KT 1 3/4SM -SN BR OVC008 M13/M15 A3016
RMK AO2 CIG 003 RWY03 SLP230 |
| 07:45 EST |
Overcast
Light Snow | -13°C / 9°F | -15°C / 5°F | 85% | 1021 mb
(30.15 in) | W 7 kph
(W 4.6 mph) | - | 1 3/4SM |
| | KGTB 231245Z AUTO 27004KT 1 3/4SM -SN BR OVC010 M13/M15 A3016
RMK AO2 CIG 003 RWY03 SLP229 |
| 07:44 EST |
Overcast
Light Snow | -13°C / 9°F | -15°C / 5°F | 85% | 1021 mb
(30.15 in) | W 9 kph
(W 5.8 mph) | - | 1 3/4SM |
| | KGTB 231244Z AUTO 27005KT 1 3/4SM -SN BR OVC010 M13/M15 A3016
RMK AO2 CIG 003 RWY03 SLP230 |
| 07:42 EST |
Overcast
Light Snow | -13°C / 9°F | -15°C / 5°F | 85% | 1021 mb
(30.15 in) | W 9 kph
(W 5.8 mph) | - | 2SM |
| | KGTB 231242Z AUTO 27005KT 2SM -SN BR OVC008 M13/M15 A3015
RMK AO2 CIG 003 RWY03 SLP229 |
| 07:41 EST |
Overcast
Light Snow | -13°C / 9°F | -15°C / 5°F | 85% | 1021 mb
(30.15 in) | W 9 kph
(W 5.8 mph) | - | 2 1/2SM |
| | KGTB 231241Z AUTO 27005KT 2 1/2SM -SN BR OVC008 M13/M15 A3015
RMK AO2 CIG 003 RWY03 SLP229 |
| 07:40 EST |
Overcast
Light Snow | -13°C / 9°F | -15°C / 5°F | 85% | 1021 mb
(30.15 in) | W 13 kph
(W 8.1 mph) | - | 2 1/2SM |
| | KGTB 231240Z AUTO 27007KT 2 1/2SM -SN BR OVC009 M13/M15 A3015
RMK AO2 CIG 003 RWY03 SLP229 |
| 07:34 EST |
Overcast
Light Snow | -13°C / 9°F | -15°C / 5°F | 85% | 1021 mb
(30.15 in) | W 13 kph
(W 8.1 mph) | - | 3SM |
| | KGTB 231234Z AUTO 27007KT 3SM -SN BR OVC011 M13/M15 A3015
RMK AO2 VIS 2 1/2V5 CIG 003 RWY03 SLP229 |
| 07:29 EST |
Overcast
Light Snow | -13°C / 9°F | -15°C / 5°F | 85% | 1021 mb
(30.15 in) | W 11 kph
(W 6.9 mph) | - | 3SM |
| | KGTB 231229Z AUTO 27006KT 3SM R15/3500VP6000FT -SN BR OVC014 M13/M15 A3015
RMK AO2 CIG 005 RWY03 SLP229 |
| 06:59 EST |
Overcast
Light Snow | -13°C / 9°F | -15°C / 5°F | 85% | 1021 mb
(30.15 in) | W 11 kph
(W 6.9 mph) | - | 4SM |
| | KGTB 231159Z AUTO 27006KT 4SM R15/4000V4500FT -SN BR FEW003 OVC025 M13/M15 A3016
RMK AO2 CIG 008 RWY03 SLP229 |
| 06:55 EST |
Overcast
Light Snow | -13°C / 9°F | -15°C / 5°F | 85% | 1021 mb
(30.15 in) | W 11 kph
(W 6.9 mph) | 0.00 mm
(0.00 in) | 5SM |
| | KGTB 231155Z AUTO 27006KT 5SM R15/4000V5000FT -SN BR OVC021 M13/M15 A3016
RMK AO2 CIG 008 RWY03 SLP230 P0000 60000 T11311151 11127 21149 56004 |
| 06:51 EST |
Overcast
Light Snow | -13°C / 9°F | -15°C / 5°F | 85% | 1021 mb
(30.15 in) | W 13 kph
(W 8.1 mph) | - | 7SM |
| | KGTB 231151Z AUTO 27007KT 7SM R15/4500V5000FT -SN FEW003 OVC019 M13/M15 A3016
RMK AO2 CIG 004 RWY03 SLP230 |
| 06:49 EST |
Overcast
Light Snow | -13°C / 9°F | -15°C / 5°F | 85% | 1021 mb
(30.15 in) | W 9 kph
(W 5.8 mph) | - | 7SM |
| | KGTB 231149Z AUTO 27005KT 7SM R15/4000V5000FT -SN FEW003 OVC016 M13/M15 A3016
RMK AO2 CIG 004 RWY03 SLP229 |
| 06:48 EST |
Overcast
Light Snow | -13°C / 9°F | -15°C / 5°F | 85% | 1021 mb
(30.15 in) | W 7 kph
(W 4.6 mph) | - | 7SM |
| | KGTB 231148Z AUTO 27004KT 7SM R15/4000V5000FT -SN OVC013 M13/M15 A3016
RMK AO2 CIG 005 RWY03 SLP229 |
| 06:47 EST |
Overcast
Light Snow | -13°C / 9°F | -15°C / 5°F | 85% | 1021 mb
(30.15 in) | W 9 kph
(W 5.8 mph) | - | 6SM |
| | KGTB 231147Z AUTO 27005KT 6SM R15/4000V5000FT -SN BR OVC011 M13/M15 A3016
RMK AO2 CIG 005 RWY03 SLP230 |
| 06:45 EST |
Overcast
Light Snow | -13°C / 9°F | -15°C / 5°F | 85% | 1021 mb
(30.15 in) | W 9 kph
(W 5.8 mph) | - | 5SM |
| | KGTB 231145Z AUTO 27005KT 5SM R15/4000V5000FT -SN BR OVC009 M13/M15 A3016
RMK AO2 CIG 003 RWY03 SLP230 |
| 06:35 EST |
Overcast
Light Snow | -13°C / 9°F | -15°C / 5°F | 85% | 1021 mb
(30.15 in) | W 9 kph
(W 5.8 mph) | - | 5SM |
| | KGTB 231135Z AUTO 28005KT 5SM R15/3500V4500FT -SN BR OVC011 M13/M15 A3016
RMK AO2 CIG 005 RWY03 SLP230 |
| 06:34 EST |
Overcast
Light Snow | -13°C / 9°F | -15°C / 5°F | 85% | 1021 mb
(30.15 in) | W 9 kph
(W 5.8 mph) | - | 5SM |
| | KGTB 231134Z AUTO 28005KT 5SM R15/3500V4500FT -SN BR OVC009 M13/M15 A3016
RMK AO2 CIG 005 RWY03 SLP230 |
| 06:31 EST |
Overcast
Light Snow | -13°C / 9°F | -15°C / 5°F | 85% | 1021 mb
(30.15 in) | W 11 kph
(W 6.9 mph) | - | 4SM |
| | KGTB 231131Z AUTO 28006KT 4SM R15/3500V4500FT -SN BR OVC007 M13/M15 A3016
RMK AO2 SLP230 |
| 06:26 EST |
Overcast
Light Snow | -13°C / 9°F | -15°C / 5°F | 85% | 1021 mb
(30.15 in) | W 9 kph
(W 5.8 mph) | - | 4SM |
| | KGTB 231126Z AUTO 27005KT 4SM R15/3500V4000FT -SN BR OVC005 M13/M15 A3015
RMK AO2 CIG 002V017 SLP229 |
| 06:23 EST |
Overcast
Light Snow | -13°C / 9°F | -15°C / 5°F | 85% | 1021 mb
(30.15 in) | W 9 kph
(W 5.8 mph) | - | 4SM |
| | KGTB 231123Z AUTO 28005KT 4SM R15/3500V4000FT -SN BR OVC006 M13/M15 A3015
RMK AO2 CIG 002V017 SLP229 |
| 06:20 EST |
Overcast
Light Snow | -13°C / 9°F | -15°C / 5°F | 85% | 1021 mb
(30.15 in) | SSW 11 kph
(SSW 6.9 mph) | - | 4SM |
| | KGTB 231120Z AUTO 26006KT 4SM R15/3500V4000FT -SN BR OVC008 M13/M15 A3015
RMK AO2 CIG 003V023 SLP229 |
| 06:19 EST |
Overcast
Light Snow | -13°C / 9°F | -15°C / 5°F | 85% | 1021 mb
(30.15 in) | Variable 9 kph
(Variable 5.8 mph) | - | 5SM |
| | KGTB 231119Z AUTO VRB05KT 5SM R15/4000FT -SN BR OVC009 M13/M15 A3015
RMK AO2 SLP230 |
| 06:17 EST |
Overcast
Light Snow | -13°C / 9°F | -15°C / 5°F | 85% | 1021 mb
(30.15 in) | W 11 kph
(W 6.9 mph) | - | 5SM |
| | KGTB 231117Z AUTO 27006KT 5SM R15/4000V4500FT -SN BR OVC011 M13/M15 A3015
RMK AO2 SLP229 |
| 06:15 EST |
Overcast
Light Snow | -13°C / 9°F | -15°C / 5°F | 85% | 1021 mb
(30.15 in) | W 9 kph
(W 5.8 mph) | - | 5SM |
| | KGTB 231115Z AUTO 27005KT 5SM R15/4000V4500FT -SN BR OVC014 M13/M15 A3015
RMK AO2 CIG 010 RWY03 SLP230 |
| 06:00 EST |
Overcast
Light Snow | -13°C / 9°F | -16°C / 3°F | 78% | 1021 mb
(30.15 in) | Variable 9 kph
(Variable 5.8 mph) | - | 5SM |
| | KGTB 231100Z AUTO VRB05KT 5SM R15/3500V4500FT -SN OVC028 M13/M16 A3015
RMK AO2 CIG 013 RWY03 SLP230 |
| 05:55 EST |
Overcast
Light Snow | -13°C / 9°F | -16°C / 3°F | 78% | 1021 mb
(30.15 in) | W 11 kph
(W 6.9 mph) | 0.00 mm
(0.00 in) | 4SM |
| | KGTB 231055Z AUTO 27006KT 4SM R15/3500V4000FT -SN OVC034 M13/M16 A3015
RMK AO2 CIG 015 RWY03 SLP230 P0000 T11331156 |
| 04:55 EST |
Overcast
Light Snow | -14°C / 7°F | -16°C / 3°F | 85% | 1021 mb
(30.15 in) | W 9 kph
(W 5.8 mph) | 0.00 mm
(0.00 in) | 10SM |
| | KGTB 230955Z AUTO 27005KT 10SM R21/5500VP6000FT R15/5500VP6000FT -SN OVC045 M14/M16 A3016
RMK AO2 SNB0930 SLP230 P0000 T11361163 |
| 04:30 EST |
Overcast
Light Snow | -14°C / 7°F | -17°C / 1°F | 78% | 1021 mb
(30.15 in) | W 11 kph
(W 6.9 mph) | - | 10SM |
| | KGTB 230930Z AUTO 27006KT 10SM -SN OVC048 M14/M17 A3016
RMK AO2 SNB0930 SLP231 |
| 03:55 EST | 
Mostly Cloudy | -14°C / 7°F | -17°C / 1°F | 78% | 1022 mb
(30.18 in) | W 9 kph
(W 5.8 mph) | - | 10SM |
| | KGTB 230855Z AUTO 27005KT 10SM BKN060 M14/M17 A3017
RMK AO2 SLP233 T11431169 50001 |
| 02:55 EST | 
Clear | -14°C / 7°F | -17°C / 1°F | 78% | 1022 mb
(30.18 in) | SSW 6 kph
(SSW 3.5 mph) | - | 10SM |
| | KGTB 230755Z AUTO 26003KT 10SM CLR M14/M17 A3017
RMK AO2 SLP235 T11451172 |
| 01:55 EST |
Clear | -13°C / 9°F | -17°C / 1°F | 72% | 1021 mb
(30.15 in) | NW 7 kph
(NW 4.6 mph) | - | 10SM |
| | KGTB 230655Z AUTO 31004KT 10SM CLR M13/M17 A3016
RMK AO2 SLP232 T11341169 |
| 00:55 EST | 
Partly Cloudy | -13°C / 9°F | -16°C / 3°F | 78% | 1021 mb
(30.15 in) | WNW 11 kph
(WNW 6.9 mph) | - | 10SM |
| | KGTB 230555Z AUTO 29006KT 10SM FEW022 M13/M16 A3016
RMK AO2 SLP231 T11261160 11099 21126 55002 |
