| 05:56 PST |  Clear | -9°C / 16°F | -11°C / 12°F | 86% | 1026 mb (30.3 in) | Calm | - | 10SM |
| | KWMC 301356Z AUTO 00000KT 10SM CLR M09/M11 A3031 RMK AO2 SLP290 T10891106 |
| 04:56 PST |  Clear | -7°C / 19°F | -9°C / 16°F | 86% | 1026 mb (30.3 in) | SE 9 kph (SE 5.8 mph) | - | 10SM |
| | KWMC 301256Z AUTO 14005KT 10SM CLR M07/M09 A3031 RMK AO2 SLP286 T10721089 |
| 03:56 PST |  Clear | -8°C / 18°F | -11°C / 12°F | 79% | 1026 mb (30.3 in) | E 6 kph (E 3.5 mph) | - | 10SM |
| | KWMC 301156Z AUTO 09003KT 10SM CLR M08/M11 A3031 RMK AO2 SLP283 T10831106 11050 21089 58008 |
| 02:56 PST |  Clear | -8°C / 18°F | -10°C / 14°F | 86% | 1027 mb (30.33 in) | SE 15 kph (SE 9.2 mph) | - | 10SM |
| | KWMC 301056Z AUTO 14008KT 10SM CLR M08/M10 A3032 RMK AO2 SLP284 T10781100 |
| 01:56 PST |  Clear | -8°C / 18°F | -10°C / 14°F | 86% | 1027 mb (30.33 in) | SE 11 kph (SE 6.9 mph) | - | 10SM |
| | KWMC 300956Z AUTO 14006KT 10SM CLR M08/M10 A3033 RMK AO2 SLP288 T10831100 |
| 00:56 PST |  Clear | -7°C / 19°F | -9°C / 16°F | 86% | 1027 mb (30.33 in) | Calm | - | 10SM |
| | KWMC 300856Z AUTO 00000KT 10SM CLR M07/M09 A3033 RMK AO2 SLP289 T10671094 51000 |