| 14:53 MST |  Overcast Light Snow | -15°C / 5°F | -19°C / -2°F | 72% | 1003 mb (29.62 in) | SSW 43 kph (SSW 26.5 mph) | 0.00 mm (0.00 in) | 4SM |
| | KRWL 092153Z AUTO 25023G37KT 4SM -SN BKN023 OVC030 M15/M19 A2962 RMK AO2 PK WND 24044/2120 UPE06B22E28B49E52SNB2054E2056B52 SLP139 P0000 T11501194 |
| 14:07 MST |  Overcast Hazy | -15°C / 5°F | -20°C / -4°F | 66% | 1002 mb (29.59 in) | SSW 56 kph (SSW 34.5 mph) | 0.00 mm (0.00 in) | 5SM |
| | KRWL 092107Z AUTO 25030G42KT 5SM HZ OVC019 M15/M20 A2960 RMK AO2 PK WND 25042/2107 UPE06SNB2054E2056 P0000 |
| 13:53 MST |  Overcast Unknown Precip | -15°C / 5°F | -19°C / -2°F | 72% | 1002 mb (29.59 in) | SSW 46 kph (SSW 28.8 mph) | 0.00 mm (0.00 in) | 2SM |
| | KRWL 092053Z AUTO 25025G36KT 2SM UP OVC017 M15/M19 A2960 RMK AO2 PK WND 25044/2027 VIS 1 1/4V3 UPB09 SLP131 P0000 60000 T11501194 56011 |
| 13:39 MST |  Mostly Cloudy Unknown Precip | -15°C / 5°F | -20°C / -4°F | 66% | 1002 mb (29.59 in) | SSW 52 kph (SSW 32.2 mph) | 0.00 mm (0.00 in) | 4SM |
| | KRWL 092039Z AUTO 25028G39KT 4SM UP BKN021 M15/M20 A2960 RMK AO2 PK WND 25044/2027 UPB09 P0000 |
| 13:31 MST |  Overcast Unknown Precip | -15°C / 5°F | -20°C / -4°F | 66% | 1003 mb (29.62 in) | SSW 59 kph (SSW 36.8 mph) | 0.00 mm (0.00 in) | 2SM |
| | KRWL 092031Z AUTO 25032G44KT 2SM UP BKN019 OVC024 M15/M20 A2961 RMK AO2 PK WND 25044/2027 VIS 1 1/2V4 UPB09 P0000 |
| 12:53 MST |  Mostly Cloudy | -15°C / 5°F | -21°C / -6°F | 60% | 1003 mb (29.62 in) | SSW 57 kph (SSW 35.7 mph) | 0.00 mm (0.00 in) | 7SM |
| | KRWL 091953Z AUTO 26031G40KT 7SM BKN023 M15/M21 A2961 RMK AO2 PK WND 24048/1901 UPB33E34 SLP134 P0000 T11501206 |
| 12:22 MST |  Mostly Cloudy Blowing Snow | -14°C / 7°F | -20°C / -4°F | 61% | 1003 mb (29.62 in) | SSW 54 kph (SSW 33.4 mph) | - | 3SM |
| | KRWL 091922Z AUTO 25029G44KT 3SM BLSN BKN021 BKN028 M14/M20 A2961 RMK AO2 PK WND 24048/1901 |
| 12:12 MST |  Mostly Cloudy Blowing Snow | -14°C / 7°F | -19°C / -2°F | 66% | 1003 mb (29.62 in) | SSW 52 kph (SSW 32.2 mph) | - | 2SM |
| | KRWL 091912Z AUTO 25028G46KT 2SM BLSN BKN019 M14/M19 A2961 RMK AO2 PK WND 24048/1901 |
| 12:05 MST |  Partly Cloudy Blowing Snow | -14°C / 7°F | -19°C / -2°F | 66% | 1003 mb (29.62 in) | SSW 69 kph (SSW 42.6 mph) | - | 1 3/4SM |
| | KRWL 091905Z AUTO 25037G48KT 1 3/4SM BLSN SCT019 SCT024 M14/M19 A2961 RMK AO2 PK WND 24048/1901 |
| 11:53 MST |  Partly Cloudy Hazy | -14°C / 7°F | -20°C / -4°F | 61% | 1002 mb (29.59 in) | SSW 59 kph (SSW 36.8 mph) | 0.00 mm (0.00 in) | 5SM |
| | KRWL 091853Z AUTO 25032G40KT 5SM HZ FEW018 M14/M20 A2960 RMK AO2 PK WND 24040/1853 UPE02 PRESFR SLP125 P0000 T11441200 |
| 10:53 MST |  Partly Cloudy Unknown Precip | -16°C / 3°F | -20°C / -4°F | 72% | 1004 mb (29.65 in) | SSW 52 kph (SSW 32.2 mph) | 0.00 mm (0.00 in) | 3SM |
| | KRWL 091753Z AUTO 25028G39KT 3SM UP FEW015 M16/M20 A2964 RMK AO2 PK WND 24039/1746 UPB19E35B51 SLP143 P0000 60000 T11561200 11156 21222 58007 |
| 09:53 MST |  Clear | -16°C / 3°F | -21°C / -6°F | 66% | 1005 mb (29.68 in) | SSW 37 kph (SSW 23 mph) | - | 10SM |
| | KRWL 091653Z AUTO 26020G28KT 10SM CLR M16/M21 A2967 RMK AO2 PK WND 26028/1650 SLP168 T11611211 |
| 09:21 MST |  Partly Cloudy | -17°C / 1°F | -21°C / -6°F | 71% | 1005 mb (29.68 in) | SSW 19 kph (SSW 11.5 mph) | - | 10SM |
| | KRWL 091621Z AUTO 26010G19KT 10SM SCT021 M17/M21 A2968 RMK AO2 |
| 08:53 MST |  Overcast | -18°C / 0°F | -22°C / -8°F | 71% | 1006 mb (29.71 in) | Variable 7 kph (Variable 4.6 mph) | - | 10SM |
| | KRWL 091553Z AUTO VRB04G17KT 10SM OVC019 M18/M22 A2970 RMK AO2 SLP183 T11781217 |
| 08:29 MST |  Mostly Cloudy | -18°C / 0°F | -22°C / -8°F | 71% | 1005 mb (29.68 in) | Variable 6 kph (Variable 3.5 mph) | - | 10SM |
| | KRWL 091529Z AUTO VRB03KT 10SM BKN019 M18/M22 A2969 RMK AO2 |
| 07:53 MST |  Clear | -20°C / -4°F | -23°C / -9°F | 77% | 1005 mb (29.68 in) | SSW 22 kph (SSW 13.8 mph) | - | 10SM |
| | KRWL 091453Z AUTO 24012G21KT 10SM CLR M20/M23 A2967 RMK AO2 PK WND 24028/1417 SLP181 T12001233 58008 |
| 07:01 MST |  Partly Cloudy | -22°C / -8°F | -24°C / -11°F | 84% | 1005 mb (29.68 in) | SW 19 kph (SW 11.5 mph) | - | 10SM |
| | KRWL 091401Z AUTO 22010KT 10SM SCT008 M22/M24 A2968 RMK AO2 |
| 06:53 MST |  Mostly Cloudy | -22°C / -8°F | -24°C / -11°F | 84% | 1005 mb (29.68 in) | SW 19 kph (SW 11.5 mph) | - | 10SM |
| | KRWL 091353Z AUTO 21010KT 10SM BKN008 M22/M24 A2969 RMK AO2 CIG 005V010 SLP191 T12171244 |
| 06:23 MST |  Mostly Cloudy | -21°C / -6°F | -24°C / -11°F | 77% | 1005 mb (29.68 in) | SW 19 kph (SW 11.5 mph) | - | 10SM |
| | KRWL 091323Z AUTO 22010KT 10SM BKN008 M21/M24 A2969 RMK AO2 |
| 06:00 MST |  Partly Cloudy | -21°C / -6°F | -24°C / -11°F | 77% | 1006 mb (29.71 in) | SW 19 kph (SW 11.5 mph) | - | 10SM |
| | KRWL 091300Z AUTO 22010KT 10SM FEW008 M21/M24 A2970 RMK AO2 |
| 05:53 MST |  Clear | -21°C / -6°F | -24°C / -11°F | 77% | 1006 mb (29.71 in) | SW 17 kph (SW 10.4 mph) | - | 10SM |
| | KRWL 091253Z AUTO 23009KT 10SM CLR M21/M24 A2970 RMK AO2 SLP191 T12111239 |
| 04:53 MST |  Clear | -21°C / -6°F | -25°C / -13°F | 70% | 1006 mb (29.71 in) | SSW 28 kph (SSW 17.3 mph) | - | 10SM |
| | KRWL 091153Z AUTO 24015KT 10SM CLR M21/M25 A2970 RMK AO2 SLP187 T12111250 11189 21211 50004 |
| 03:53 MST |  Clear | -21°C / -6°F | -24°C / -11°F | 77% | 1006 mb (29.71 in) | SSW 30 kph (SSW 18.4 mph) | - | 10SM |
| | KRWL 091053Z AUTO 24016KT 10SM CLR M21/M24 A2971 RMK AO2 SLP183 T12061244 |
| 02:53 MST |  Clear | -21°C / -6°F | -24°C / -11°F | 77% | 1006 mb (29.71 in) | SSW 32 kph (SSW 19.6 mph) | - | 10SM |
| | KRWL 090953Z AUTO 25017KT 10SM CLR M21/M24 A2970 RMK AO2 SLP180 T12061244 |
| 01:53 MST |  Clear | -21°C / -6°F | -24°C / -11°F | 77% | 1005 mb (29.68 in) | SSW 26 kph (SSW 16.1 mph) | - | 10SM |
| | KRWL 090853Z AUTO 25014KT 10SM CLR M21/M24 A2968 RMK AO2 SLP171 T12061244 55006 |
| 00:53 MST |  Clear | -21°C / -6°F | -24°C / -11°F | 77% | 1005 mb (29.68 in) | SSW 30 kph (SSW 18.4 mph) | - | 10SM |
| | KRWL 090753Z AUTO 25016G22KT 10SM CLR M21/M24 A2967 RMK AO2 SLP166 T12061239 |