| 06:56 PST |  Clear | -11°C / 12°F | -13°C / 9°F | 85% | 1020 mb (30.12 in) | NE 6 kph (NE 3.5 mph) | - | 10SM |
| | KWMC 011456Z AUTO 05003KT 10SM CLR M11/M13 A3012 RMK AO2 SLP236 T11111128 51002 |
| 05:56 PST |  Clear | -11°C / 12°F | -13°C / 9°F | 85% | 1020 mb (30.12 in) | SE 7 kph (SE 4.6 mph) | - | 10SM |
| | KWMC 011356Z AUTO 14004KT 10SM CLR M11/M13 A3011 RMK AO2 SLP228 T11111133 |
| 04:56 PST |  Clear | -10°C / 14°F | -12°C / 10°F | 85% | 1020 mb (30.12 in) | ENE 7 kph (ENE 4.6 mph) | - | 10SM |
| | KWMC 011256Z AUTO 06004KT 10SM CLR M10/M12 A3012 RMK AO2 SLP225 T11001122 |
| 03:56 PST |  Clear | -11°C / 12°F | -13°C / 9°F | 85% | 1020 mb (30.12 in) | S 7 kph (S 4.6 mph) | 0.25 mm (0.01 in) | 10SM |
| | KWMC 011156Z AUTO 17004KT 10SM CLR M11/M13 A3011 RMK AO2 SLP216 P0001 60001 70001 T11061128 11061 21106 56007 |
| 02:56 PST |  Clear | -9°C / 16°F | -12°C / 10°F | 79% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KWMC 011056Z AUTO 00000KT 10SM CLR M09/M12 A3012 RMK AO2 SLP214 T10941117 |
| 01:56 PST |  Clear | -9°C / 16°F | -11°C / 12°F | 86% | 1020 mb (30.12 in) | SE 11 kph (SE 6.9 mph) | - | 10SM |
| | KWMC 010956Z AUTO 14006KT 10SM CLR M09/M11 A3013 RMK AO2 SLP218 T10941111 |
| 00:56 PST |  Clear | -9°C / 16°F | -11°C / 12°F | 86% | 1020 mb (30.12 in) | SSE 7 kph (SSE 4.6 mph) | - | 10SM |
| | KWMC 010856Z AUTO 15004KT 10SM CLR M09/M11 A3013 RMK AO2 SLP222 T10891111 58005 |