| 14:03 MST |  Partly Cloudy Light Snow | -9°C / 16°F | -12°C / 10°F | 79% | 1020 mb (30.12 in) | NNW 28 kph (NNW 17.3 mph) | 0.00 mm (0.00 in) | 5SM |
| | KGCC 262103Z AUTO 34015KT 5SM -SN FEW020 SCT033 M09/M12 A3013 RMK AO2 P0000 |
| 13:53 MST |  Mostly Cloudy Light Snow | -9°C / 16°F | -12°C / 10°F | 79% | 1020 mb (30.12 in) | NNW 24 kph (NNW 15 mph) | 0.00 mm (0.00 in) | 2SM |
| | KGCC 262053Z AUTO 34013KT 2SM -SN SCT022 BKN035 M09/M12 A3013 RMK AO2 SLP270 P0000 60000 T10891117 53000 |
| 13:49 MST |  Mostly Cloudy Light Snow | -9°C / 16°F | -12°C / 10°F | 79% | 1020 mb (30.12 in) | NNW 24 kph (NNW 15 mph) | 0.00 mm (0.00 in) | 1 3/4SM |
| | KGCC 262049Z AUTO 33013KT 1 3/4SM -SN BKN022 BKN035 M09/M12 A3013 RMK AO2 P0000 |
| 13:35 MST |  Overcast Light Snow | -9°C / 16°F | -12°C / 10°F | 79% | 1020 mb (30.12 in) | NNW 24 kph (NNW 15 mph) | 0.00 mm (0.00 in) | 2 1/2SM |
| | KGCC 262035Z AUTO 33013KT 2 1/2SM -SN BKN028 OVC035 M09/M12 A3012 RMK AO2 P0000 |
| 13:31 MST |  Overcast Light Snow | -9°C / 16°F | -12°C / 10°F | 79% | 1020 mb (30.12 in) | NNW 28 kph (NNW 17.3 mph) | 0.00 mm (0.00 in) | 3SM |
| | KGCC 262031Z AUTO 33015KT 3SM -SN BKN032 OVC049 M09/M12 A3012 RMK AO2 P0000 |
| 13:21 MST |  Mostly Cloudy Light Snow | -9°C / 16°F | -12°C / 10°F | 79% | 1020 mb (30.12 in) | NNW 33 kph (NNW 20.7 mph) | 0.00 mm (0.00 in) | 2 1/2SM |
| | KGCC 262021Z AUTO 34018KT 2 1/2SM -SN BKN032 BKN044 M09/M12 A3012 RMK AO2 P0000 |
| 13:08 MST |  Mostly Cloudy Light Snow | -9°C / 16°F | -12°C / 10°F | 79% | 1020 mb (30.12 in) | NNW 33 kph (NNW 20.7 mph) | 0.00 mm (0.00 in) | 1 1/2SM |
| | KGCC 262008Z AUTO 34018KT 1 1/2SM -SN FEW022 BKN044 M09/M12 A3013 RMK AO2 P0000 |
| 12:53 MST |  Overcast Light Snow | -9°C / 16°F | -12°C / 10°F | 79% | 1020 mb (30.12 in) | NNW 32 kph (NNW 19.6 mph) | 0.00 mm (0.00 in) | 2 1/2SM |
| | KGCC 261953Z AUTO 33017KT 2 1/2SM -SN OVC042 M09/M12 A3013 RMK AO2 SNB14 SLP271 P0000 T10941122 |
| 11:53 MST |  Overcast | -9°C / 16°F | -12°C / 10°F | 79% | 1020 mb (30.12 in) | NW 32 kph (NW 19.6 mph) | - | 10SM |
| | KGCC 261853Z AUTO 32017KT 10SM OVC040 M09/M12 A3013 RMK AO2 SLP270 T10891122 |
| 10:53 MST |  Overcast | -9°C / 16°F | -12°C / 10°F | 79% | 1021 mb (30.15 in) | NW 28 kph (NW 17.3 mph) | - | 10SM |
| | KGCC 261753Z AUTO 31015G20KT 10SM OVC042 M09/M12 A3014 RMK AO2 SLP274 60000 T10941122 11089 21122 53006 |
| 09:53 MST |  Overcast | -9°C / 16°F | -13°C / 9°F | 73% | 1020 mb (30.12 in) | NW 37 kph (NW 23 mph) | - | 10SM |
| | KGCC 261653Z AUTO 32020KT 10SM BKN049 OVC060 M09/M13 A3013 RMK AO2 PK WND 32026/1644 SLP272 T10941128 |
| 08:53 MST |  Overcast | -11°C / 12°F | -13°C / 9°F | 85% | 1020 mb (30.12 in) | NW 35 kph (NW 21.9 mph) | 0.00 mm (0.00 in) | 7SM |
| | KGCC 261553Z AUTO 31019KT 7SM SCT038 OVC055 M11/M13 A3012 RMK AO2 PK WND 31026/1547 SNE31 SLP269 P0000 T11061133 |
| 08:32 MST |  Overcast Hazy | -11°C / 12°F | -14°C / 7°F | 79% | 1020 mb (30.12 in) | NW 32 kph (NW 19.6 mph) | 0.00 mm (0.00 in) | 4SM |
| | KGCC 261532Z AUTO 31017KT 4SM HZ FEW011 OVC038 M11/M14 A3011 RMK AO2 SNE31 P0000 |
| 08:24 MST |  Overcast Light Snow | -11°C / 12°F | -14°C / 7°F | 79% | 1020 mb (30.12 in) | NW 32 kph (NW 19.6 mph) | 0.00 mm (0.00 in) | 2 1/2SM |
| | KGCC 261524Z AUTO 31017G25KT 2 1/2SM -SN SCT013 OVC038 M11/M14 A3012 RMK AO2 P0000 |
| 08:07 MST |  Overcast Light Snow | -11°C / 12°F | -14°C / 7°F | 79% | 1020 mb (30.12 in) | NW 33 kph (NW 20.7 mph) | 0.00 mm (0.00 in) | 2 1/2SM |
| | KGCC 261507Z AUTO 31018KT 2 1/2SM -SN OVC013 M11/M14 A3012 RMK AO2 P0000 |
| 07:53 MST |  Overcast Light Snow | -11°C / 12°F | -14°C / 7°F | 79% | 1020 mb (30.12 in) | NW 30 kph (NW 18.4 mph) | 0.00 mm (0.00 in) | 4SM |
| | KGCC 261453Z AUTO 32016KT 4SM -SN BKN013 BKN021 OVC055 M11/M14 A3012 RMK AO2 PK WND 30026/1403 SNB50 SLP269 P0000 60000 T11111139 50004 |
| 07:50 MST |  Overcast Light Snow | -12°C / 10°F | -14°C / 7°F | 85% | 1020 mb (30.12 in) | NW 28 kph (NW 17.3 mph) | 0.00 mm (0.00 in) | 5SM |
| | KGCC 261450Z AUTO 31015KT 5SM -SN BR BKN013 BKN024 OVC055 M12/M14 A3012 RMK AO2 PK WND 30026/1403 SNB50 P0000 |
| 06:53 MST |  Overcast Hazy | -12°C / 10°F | -14°C / 7°F | 85% | 1020 mb (30.12 in) | NW 33 kph (NW 20.7 mph) | 0.00 mm (0.00 in) | 6SM |
| | KGCC 261353Z AUTO 31018G26KT 6SM HZ SCT036 OVC049 M12/M14 A3012 RMK AO2 PK WND 32026/1347 SNE04 SLP272 P0000 T11171144 |
| 06:42 MST |  Overcast | -12°C / 10°F | -14°C / 7°F | 85% | 1020 mb (30.12 in) | NW 33 kph (NW 20.7 mph) | 0.00 mm (0.00 in) | 7SM |
| | KGCC 261342Z AUTO 31018KT 7SM BKN034 OVC047 M12/M14 A3012 RMK AO2 SNE04 P0000 |
| 06:08 MST |  Overcast Hazy | -12°C / 10°F | -14°C / 7°F | 85% | 1020 mb (30.12 in) | NW 30 kph (NW 18.4 mph) | 0.00 mm (0.00 in) | 3SM |
| | KGCC 261308Z AUTO 32016KT 3SM HZ BKN015 OVC031 M12/M14 A3011 RMK AO2 SNE04 P0000 |
| 06:06 MST |  Overcast Hazy | -12°C / 10°F | -14°C / 7°F | 85% | 1020 mb (30.12 in) | NW 32 kph (NW 19.6 mph) | 0.00 mm (0.00 in) | 2 1/2SM |
| | KGCC 261306Z AUTO 32017G24KT 2 1/2SM HZ BKN013 OVC031 M12/M14 A3012 RMK AO2 SNE04 P0000 |
| 05:53 MST |  Overcast Light Snow | -12°C / 10°F | -14°C / 7°F | 85% | 1020 mb (30.12 in) | NW 37 kph (NW 23 mph) | 0.00 mm (0.00 in) | 1 3/4SM |
| | KGCC 261253Z AUTO 32020G25KT 1 3/4SM -SN BKN011 OVC025 M12/M14 A3011 RMK AO2 PK WND 32029/1234 SLP270 P0000 T11171144 |
| 05:09 MST |  Overcast Light Snow | -12°C / 10°F | -14°C / 7°F | 85% | 1020 mb (30.12 in) | NW 32 kph (NW 19.6 mph) | 0.00 mm (0.00 in) | 1 1/4SM |
| | KGCC 261209Z AUTO 32017KT 1 1/4SM -SN OVC007 M12/M14 A3011 RMK AO2 P0000 |
| 05:01 MST |  Obscured Light Snow | -12°C / 10°F | -14°C / 7°F | 85% | 1019 mb (30.09 in) | NW 32 kph (NW 19.6 mph) | 0.00 mm (0.00 in) | 1SM |
| | KGCC 261201Z AUTO 32017KT 1SM -SN BR VV006 M12/M14 A3010 RMK AO2 P0000 |
| 04:53 MST |  Overcast Light Snow | -12°C / 10°F | -14°C / 7°F | 85% | 1019 mb (30.09 in) | NW 35 kph (NW 21.9 mph) | 0.25 mm (0.01 in) | 1SM |
| | KGCC 261153Z AUTO 32019G25KT 1SM -SN BR BKN007 OVC020 M12/M14 A3010 RMK AO2 PK WND 32027/1139 UPE03SNB03 SLP269 P0001 60001 70007 T11221144 11117 21128 53009 |
| 04:21 MST |  Overcast Light Snow | -12°C / 10°F | -15°C / 5°F | 79% | 1019 mb (30.09 in) | NW 33 kph (NW 20.7 mph) | 0.25 mm (0.01 in) | 1 1/2SM |
| | KGCC 261121Z AUTO 32018KT 1 1/2SM -SN BKN007 OVC017 M12/M15 A3008 RMK AO2 PK WND 33027/1054 UPE03SNB03 P0001 |
| 03:53 MST |  Overcast Unknown Precip | -12°C / 10°F | -15°C / 5°F | 79% | 1019 mb (30.09 in) | NW 39 kph (NW 24.2 mph) | 0.00 mm (0.00 in) | 2 1/2SM |
| | KGCC 261053Z AUTO 32021G31KT 2 1/2SM UP OVC007 M12/M15 A3009 RMK AO2 PK WND 32031/1046 UPB51SNE51 SLP265 P0000 T11221150 |
| 02:53 MST |  Overcast Light Snow | -12°C / 10°F | -15°C / 5°F | 79% | 1019 mb (30.09 in) | NW 46 kph (NW 28.8 mph) | 0.00 mm (0.00 in) | 1 1/4SM |
| | KGCC 260953Z AUTO 30025G31KT 1 1/4SM -SN OVC009 M12/M15 A3008 RMK AO2 PK WND 31034/0854 UPE09B29E38SNB09E29B38 SLP260 P0000 T11221150 |
| 02:51 MST |  Overcast Light Snow | -12°C / 10°F | -15°C / 5°F | 79% | 1018 mb (30.06 in) | NW 44 kph (NW 27.6 mph) | 0.00 mm (0.00 in) | 1 1/2SM |
| | KGCC 260951Z AUTO 31024G31KT 1 1/2SM -SN OVC009 M12/M15 A3007 RMK AO2 PK WND 31034/0854 UPE09B29E38SNB09E29B38 P0000 |
| 02:38 MST |  Overcast Light Snow | -12°C / 10°F | -15°C / 5°F | 79% | 1019 mb (30.09 in) | NW 39 kph (NW 24.2 mph) | 0.00 mm (0.00 in) | 2SM |
| | KGCC 260938Z AUTO 31021G29KT 2SM -SN BKN009 OVC020 M12/M15 A3008 RMK AO2 PK WND 31034/0854 UPE09B29E38SNB09E29B38 P0000 |
| 02:23 MST |  Overcast Light Snow | -12°C / 10°F | -15°C / 5°F | 79% | 1019 mb (30.09 in) | NW 44 kph (NW 27.6 mph) | 0.00 mm (0.00 in) | 2SM |
| | KGCC 260923Z AUTO 31024G29KT 2SM -SN BKN011 OVC035 M12/M15 A3008 RMK AO2 PK WND 31034/0854 UPE09SNB09 P0000 |
| 01:53 MST |  Overcast Unknown Precip | -12°C / 10°F | -15°C / 5°F | 79% | 1018 mb (30.06 in) | NW 46 kph (NW 28.8 mph) | 0.00 mm (0.00 in) | 2 1/2SM |
| | KGCC 260853Z AUTO 31025G33KT 2 1/2SM UP SCT017 BKN028 OVC035 M12/M15 A3007 RMK AO2 PK WND 31033/0845 SNB11E26 SLP257 P0000 60000 T11221150 53003 |
| 01:01 MST |  Overcast Unknown Precip | -12°C / 10°F | -15°C / 5°F | 79% | 1018 mb (30.06 in) | NW 46 kph (NW 28.8 mph) | 0.00 mm (0.00 in) | 2SM |
| | KGCC 260801Z AUTO 31025G32KT 2SM UP FEW026 OVC039 M12/M15 A3006 RMK AO2 PK WND 32032/0756 P0000 |
| 00:53 MST |  Overcast Unknown Precip | -12°C / 10°F | -15°C / 5°F | 79% | 1018 mb (30.06 in) | NW 48 kph (NW 29.9 mph) | 0.00 mm (0.00 in) | 1 3/4SM |
| | KGCC 260753Z AUTO 31026G33KT 1 3/4SM UP SCT024 OVC039 M12/M15 A3006 RMK AO2 PK WND 31035/0732 UPB07SNE07 SLP253 P0000 T11221150 |
| 00:30 MST |  Overcast Unknown Precip | -13°C / 9°F | -16°C / 3°F | 78% | 1018 mb (30.06 in) | NW 44 kph (NW 27.6 mph) | 0.00 mm (0.00 in) | 1 3/4SM |
| | KGCC 260730Z AUTO 31024G30KT 1 3/4SM UP BKN024 OVC035 M13/M16 A3005 RMK AO2 PK WND 32033/0700 UPB07SNE07 P0000 |
| 00:11 MST |  Overcast Unknown Precip | -13°C / 9°F | -16°C / 3°F | 78% | 1018 mb (30.06 in) | NW 44 kph (NW 27.6 mph) | 0.00 mm (0.00 in) | 2SM |
| | KGCC 260711Z AUTO 31024G29KT 2SM UP BKN028 OVC036 M13/M16 A3006 RMK AO2 PK WND 32033/0700 UPB07SNE07 P0000 |