| 12:08 MST |  Overcast Light Snow | -14°C / 7°F | -18°C / 0°F | 72% | 1016 mb (30 in) | NW 33 kph (NW 20.7 mph) | 0.00 mm (0.00 in) | 3SM |
| | KGCC 251908Z AUTO 32018KT 3SM -SN SCT026 BKN032 OVC050 M14/M18 A3001 RMK AO2 PK WND 32027/1857 P0000 |
| 11:53 MST |  Overcast Light Snow | -14°C / 7°F | -18°C / 0°F | 72% | 1016 mb (30 in) | NW 37 kph (NW 23 mph) | 0.00 mm (0.00 in) | 1 1/2SM |
| | KGCC 251853Z AUTO 31020G26KT 1 1/2SM -SN BKN016 BKN021 OVC055 M14/M18 A3001 RMK AO2 PK WND 33027/1819 SLP251 P0000 T11441178 |
| 11:23 MST |  Obscured Light Snow | -14°C / 7°F | -18°C / 0°F | 72% | 1016 mb (30 in) | NW 39 kph (NW 24.2 mph) | 0.00 mm (0.00 in) | 1SM |
| | KGCC 251823Z AUTO 32021G27KT 1SM -SN VV010 M14/M18 A3001 RMK AO2 PK WND 33027/1819 P0000 |
| 11:08 MST |  Obscured Light Snow | -14°C / 7°F | -18°C / 0°F | 72% | 1017 mb (30.03 in) | NNW 33 kph (NNW 20.7 mph) | 0.00 mm (0.00 in) | 3/4SM |
| | KGCC 251808Z AUTO 33018G26KT 3/4SM -SN VV009 M14/M18 A3002 RMK AO2 PK WND 32026/1802 P0000 |
| 10:53 MST |  Obscured Light Snow | -15°C / 5°F | -18°C / 0°F | 78% | 1017 mb (30.03 in) | NNW 37 kph (NNW 23 mph) | 0.00 mm (0.00 in) | 1SM |
| | KGCC 251753Z AUTO 33020G25KT 1SM -SN VV014 M15/M18 A3002 RMK AO2 PK WND 32028/1659 SLP253 P0000 60000 T11501178 11150 21172 50004 |
| 10:22 MST |  Obscured Light Snow | -15°C / 5°F | -18°C / 0°F | 78% | 1017 mb (30.03 in) | NW 33 kph (NW 20.7 mph) | 0.00 mm (0.00 in) | 1SM |
| | KGCC 251722Z AUTO 32018G25KT 1SM -SN VV015 M15/M18 A3002 RMK AO2 PK WND 32028/1659 P0000 |
| 10:12 MST |  Obscured Light Snow | -15°C / 5°F | -18°C / 0°F | 78% | 1017 mb (30.03 in) | NW 35 kph (NW 21.9 mph) | 0.00 mm (0.00 in) | 3/4SM |
| | KGCC 251712Z AUTO 32019G26KT 3/4SM -SN VV013 M15/M18 A3002 RMK AO2 PK WND 32028/1659 P0000 |
| 09:53 MST |  Overcast Light Snow | -16°C / 3°F | -18°C / 0°F | 85% | 1017 mb (30.03 in) | NW 37 kph (NW 23 mph) | 0.00 mm (0.00 in) | 1 1/4SM |
| | KGCC 251653Z AUTO 32020KT 1 1/4SM -SN OVC015 M16/M18 A3002 RMK AO2 PK WND 31027/1627 SLP257 P0000 T11561183 |
| 09:22 MST |  Overcast Light Snow | -16°C / 3°F | -19°C / -2°F | 78% | 1016 mb (30 in) | NW 30 kph (NW 18.4 mph) | 0.00 mm (0.00 in) | 1 1/4SM |
| | KGCC 251622Z AUTO 32016KT 1 1/4SM -SN OVC017 M16/M19 A3001 RMK AO2 PK WND 32026/1611 P0000 |
| 08:53 MST |  Obscured Light Snow | -16°C / 3°F | -19°C / -2°F | 78% | 1016 mb (30 in) | NW 39 kph (NW 24.2 mph) | 0.00 mm (0.00 in) | 1SM |
| | KGCC 251553Z AUTO 32021G26KT 1SM -SN VV013 M16/M19 A3001 RMK AO2 PK WND 33026/1544 SLP253 P0000 T11611189 |
| 08:46 MST |  Obscured Light Snow | -16°C / 3°F | -19°C / -2°F | 78% | 1016 mb (30 in) | NW 33 kph (NW 20.7 mph) | 0.00 mm (0.00 in) | 3/4SM |
| | KGCC 251546Z AUTO 32018G26KT 3/4SM -SN VV013 M16/M19 A3001 RMK AO2 PK WND 33026/1544 P0000 |
| 08:26 MST |  Obscured Light Snow | -17°C / 1°F | -19°C / -2°F | 85% | 1016 mb (30 in) | NW 35 kph (NW 21.9 mph) | 0.00 mm (0.00 in) | 1SM |
| | KGCC 251526Z AUTO 32019G22KT 1SM -SN VV014 M17/M19 A3001 RMK AO2 P0000 |
| 08:17 MST |  Obscured Light Snow | -17°C / 1°F | -20°C / -4°F | 78% | 1016 mb (30 in) | NW 35 kph (NW 21.9 mph) | 0.00 mm (0.00 in) | 3/4SM |
| | KGCC 251517Z AUTO 32019G24KT 3/4SM -SN VV014 M17/M20 A3000 RMK AO2 P0000 |
| 07:53 MST |  Overcast Light Snow | -17°C / 1°F | -20°C / -4°F | 78% | 1016 mb (30 in) | NNW 28 kph (NNW 17.3 mph) | 0.00 mm (0.00 in) | 1 1/4SM |
| | KGCC 251453Z AUTO 33015KT 1 1/4SM -SN OVC017 M17/M20 A3000 RMK AO2 SLP251 P0000 60000 T11671200 51003 |
| 06:53 MST |  Overcast Light Snow | -17°C / 1°F | -20°C / -4°F | 78% | 1016 mb (30 in) | NNW 30 kph (NNW 18.4 mph) | 0.00 mm (0.00 in) | 1 1/4SM |
| | KGCC 251353Z AUTO 34016KT 1 1/4SM -SN OVC011 M17/M20 A3000 RMK AO2 SNB12 SLP252 P0000 T11721200 |
| 06:49 MST |  Overcast Light Snow | -17°C / 1°F | -20°C / -4°F | 78% | 1016 mb (30 in) | NNW 32 kph (NNW 19.6 mph) | 0.00 mm (0.00 in) | 1 1/2SM |
| | KGCC 251349Z AUTO 34017KT 1 1/2SM -SN OVC011 M17/M20 A3000 RMK AO2 SNB12 P0000 |
| 06:38 MST |  Overcast Light Snow | -17°C / 1°F | -20°C / -4°F | 78% | 1016 mb (30 in) | NNW 32 kph (NNW 19.6 mph) | 0.00 mm (0.00 in) | 1 1/2SM |
| | KGCC 251338Z AUTO 34017G22KT 1 1/2SM -SN OVC015 M17/M20 A3000 RMK AO2 SNB12 P0000 |
| 06:21 MST |  Overcast Light Snow | -17°C / 1°F | -20°C / -4°F | 78% | 1016 mb (30 in) | NNW 32 kph (NNW 19.6 mph) | 0.00 mm (0.00 in) | 2 1/2SM |
| | KGCC 251321Z AUTO 34017KT 2 1/2SM -SN BKN029 OVC038 M17/M20 A3000 RMK AO2 SNB12 P0000 |
| 05:53 MST |  Overcast Hazy | -17°C / 1°F | -20°C / -4°F | 78% | 1016 mb (30 in) | NNW 28 kph (NNW 17.3 mph) | - | 6SM |
| | KGCC 251253Z AUTO 33015KT 6SM HZ BKN033 OVC045 M17/M20 A2999 RMK AO2 SLP243 T11671200 |
| 05:16 MST |  Overcast Hazy | -17°C / 1°F | -20°C / -4°F | 78% | 1016 mb (30 in) | NNW 28 kph (NNW 17.3 mph) | - | 3SM |
| | KGCC 251216Z AUTO 33015KT 3SM HZ BKN029 BKN042 OVC055 M17/M20 A2999 RMK AO2 |
| 04:53 MST |  Overcast Hazy | -16°C / 3°F | -21°C / -6°F | 66% | 1016 mb (30 in) | NW 24 kph (NW 15 mph) | - | 6SM |
| | KGCC 251153Z AUTO 32013G19KT 6SM HZ BKN035 BKN047 OVC060 M16/M21 A2999 RMK AO2 SLP239 60000 T11611206 11161 21183 58000 |
| 03:53 MST |  Overcast Hazy | -17°C / 1°F | -21°C / -6°F | 71% | 1016 mb (30 in) | NW 20 kph (NW 12.7 mph) | - | 6SM |
| | KGCC 251053Z AUTO 32011KT 6SM HZ BKN033 OVC047 M17/M21 A2999 RMK AO2 SLP234 T11671206 |
| 02:53 MST |  Overcast Hazy | -17°C / 1°F | -21°C / -6°F | 71% | 1016 mb (30 in) | NW 22 kph (NW 13.8 mph) | 0.00 mm (0.00 in) | 6SM |
| | KGCC 250953Z AUTO 32012KT 6SM HZ BKN031 BKN044 OVC055 M17/M21 A3000 RMK AO2 SNE0856B43E52 SLP236 P0000 T11721206 |
| 02:14 MST |  Overcast Hazy | -17°C / 1°F | -21°C / -6°F | 71% | 1016 mb (30 in) | NNW 20 kph (NNW 12.7 mph) | 0.00 mm (0.00 in) | 6SM |
| | KGCC 250914Z AUTO 33011KT 6SM HZ BKN033 BKN043 OVC065 M17/M21 A2999 RMK AO2 SNE0856 P0000 |
| 01:53 MST |  Overcast Light Snow | -17°C / 1°F | -21°C / -6°F | 71% | 1016 mb (30 in) | NW 20 kph (NW 12.7 mph) | 0.00 mm (0.00 in) | 3SM |
| | KGCC 250853Z AUTO 32011KT 3SM -SN OVC025 M17/M21 A2999 RMK AO2 SNB23 SLP231 P0000 60000 T11721206 55004 |
| 01:38 MST |  Overcast Light Snow | -17°C / 1°F | -21°C / -6°F | 71% | 1016 mb (30 in) | NW 22 kph (NW 13.8 mph) | 0.00 mm (0.00 in) | 2 1/2SM |
| | KGCC 250838Z AUTO 32012KT 2 1/2SM -SN OVC025 M17/M21 A2999 RMK AO2 SNB23 P0000 |
| 01:31 MST |  Overcast Light Snow | -17°C / 1°F | -21°C / -6°F | 71% | 1015 mb (29.97 in) | NW 28 kph (NW 17.3 mph) | 0.00 mm (0.00 in) | 3SM |
| | KGCC 250831Z AUTO 31015KT 3SM -SN OVC027 M17/M21 A2998 RMK AO2 SNB23 P0000 |
| 00:53 MST |  Overcast Hazy | -18°C / 0°F | -21°C / -6°F | 78% | 1016 mb (30 in) | NW 26 kph (NW 16.1 mph) | 0.00 mm (0.00 in) | 4SM |
| | KGCC 250753Z AUTO 32014KT 4SM HZ BKN033 BKN039 OVC047 M18/M21 A2999 RMK AO2 SNE53 SLP230 P0000 T11781206 |
| 00:44 MST |  Overcast Light Snow | -18°C / 0°F | -21°C / -6°F | 78% | 1015 mb (29.97 in) | NW 26 kph (NW 16.1 mph) | 0.00 mm (0.00 in) | 2 1/2SM |
| | KGCC 250744Z AUTO 31014KT 2 1/2SM -SN BKN033 BKN040 OVC049 M18/M21 A2998 RMK AO2 P0000 |
| 00:37 MST |  Overcast Light Snow | -18°C / 0°F | -21°C / -6°F | 78% | 1016 mb (30 in) | NW 26 kph (NW 16.1 mph) | 0.00 mm (0.00 in) | 2SM |
| | KGCC 250737Z AUTO 31014KT 2SM -SN BKN029 BKN038 OVC049 M18/M21 A2999 RMK AO2 P0000 |
| 00:25 MST |  Overcast Light Snow | -18°C / 0°F | -21°C / -6°F | 78% | 1016 mb (30 in) | NW 24 kph (NW 15 mph) | 0.00 mm (0.00 in) | 4SM |
| | KGCC 250725Z AUTO 31013KT 4SM -SN BKN027 BKN038 OVC048 M18/M21 A2999 RMK AO2 P0000 |
| 00:13 MST |  Overcast Light Snow | -18°C / 0°F | -21°C / -6°F | 78% | 1016 mb (30 in) | NW 20 kph (NW 12.7 mph) | 0.00 mm (0.00 in) | 2 1/2SM |
| | KGCC 250713Z AUTO 32011KT 2 1/2SM -SN BKN027 OVC040 M18/M21 A3000 RMK AO2 P0000 |