| 07:15 PST |  Clear | -11°C / 12°F | -12°C / 10°F | 92% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KAWO 081515Z AUTO 00000KT 10SM CLR M11/M12 A3022 RMK AO1 |
| 06:55 PST |  Clear | -11°C / 12°F | -12°C / 10°F | 92% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KAWO 081455Z AUTO 00000KT 10SM CLR M11/M12 A3021 RMK AO1 52017 |
| 06:35 PST |  Clear | -11°C / 12°F | -13°C / 9°F | 85% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KAWO 081435Z AUTO 00000KT 10SM CLR M11/M13 A3021 RMK AO1 |
| 06:15 PST |  Clear | -11°C / 12°F | -12°C / 10°F | 92% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KAWO 081415Z AUTO 00000KT 10SM CLR M11/M12 A3020 RMK AO1 |
| 05:55 PST |  Clear | -11°C / 12°F | -11°C / 12°F | 100% | 1022 mb (30.18 in) | Calm | - | 10SM |
| | KAWO 081355Z AUTO 00000KT 10SM CLR M11/M11 A3019 RMK AO1 |
| 05:35 PST |  Clear | -12°C / 10°F | -12°C / 10°F | 100% | 1022 mb (30.18 in) | N 6 kph (N 3.5 mph) | - | 10SM |
| | KAWO 081335Z AUTO 36003KT 10SM CLR M12/M12 A3019 RMK AO1 |
| 05:15 PST |  Clear | -12°C / 10°F | -13°C / 9°F | 92% | 1022 mb (30.18 in) | N 6 kph (N 3.5 mph) | - | 10SM |
| | KAWO 081315Z AUTO 36003KT 10SM CLR M12/M13 A3018 RMK AO1 |
| 04:55 PST |  Clear | -11°C / 12°F | -12°C / 10°F | 92% | 1022 mb (30.18 in) | N 6 kph (N 3.5 mph) | - | 10SM |
| | KAWO 081255Z AUTO 35003KT 10SM CLR M11/M12 A3017 RMK AO1 |
| 04:35 PST |  Clear | -12°C / 10°F | -16°C / 3°F | 72% | 1022 mb (30.18 in) | Calm | - | 10SM |
| | KAWO 081235Z AUTO 10SM CLR M12/M16 A3017 RMK AO1 |
| 04:15 PST |  Clear | -11°C / 12°F | -12°C / 10°F | 92% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KAWO 081215Z AUTO 00000KT 10SM CLR M11/M12 A3016 RMK AO1 |
| 03:55 PST |  Clear | -12°C / 10°F | -13°C / 9°F | 92% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KAWO 081155Z AUTO 00000KT 10SM CLR M12/M13 A3016 RMK AO1 11090 21120 52014 |
| 03:35 PST |  Clear | -12°C / 10°F | -12°C / 10°F | 100% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KAWO 081135Z AUTO 00000KT 10SM CLR M12/M12 A3016 RMK AO1 |
| 03:15 PST |  Clear | -12°C / 10°F | -14°C / 7°F | 85% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KAWO 081115Z AUTO 00000KT 10SM CLR M12/M14 A3016 RMK AO1 |
| 02:55 PST |  Clear | -11°C / 12°F | -12°C / 10°F | 92% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KAWO 081055Z AUTO 00000KT 10SM CLR M11/M12 A3015 RMK AO1 |
| 02:35 PST |  Clear | -12°C / 10°F | -14°C / 7°F | 85% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KAWO 081035Z AUTO 00000KT 10SM CLR M12/M14 A3015 RMK AO1 |
| 02:15 PST |  Clear | -11°C / 12°F | -12°C / 10°F | 92% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KAWO 081015Z AUTO 00000KT 10SM CLR M11/M12 A3014 RMK AO1 |
| 01:55 PST |  Clear | -12°C / 10°F | -13°C / 9°F | 92% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KAWO 080955Z AUTO 00000KT 10SM CLR M12/M13 A3014 RMK AO1 |
| 01:35 PST |  Clear | -11°C / 12°F | -11°C / 12°F | 100% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KAWO 080935Z AUTO 00000KT 10SM CLR M11/M11 A3013 RMK AO1 |
| 01:15 PST |  Clear | -11°C / 12°F | -11°C / 12°F | 100% | 1020 mb (30.12 in) | NNW 6 kph (NNW 3.5 mph) | - | 10SM |
| | KAWO 080915Z AUTO 33003KT 10SM CLR M11/M11 A3013 RMK AO1 |
| 00:55 PST |  Clear | -10°C / 14°F | -12°C / 10°F | 85% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KAWO 080855Z AUTO 00000KT 10SM CLR M10/M12 A3012 RMK AO1 52003 |
| 00:35 PST |  Clear | -11°C / 12°F | -13°C / 9°F | 85% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KAWO 080835Z AUTO 00000KT 10SM CLR M11/M13 A3012 RMK AO1 |
| 00:15 PST |  Clear | -10°C / 14°F | -13°C / 9°F | 79% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KAWO 080815Z AUTO 00000KT 10SM CLR M10/M13 A3012 RMK AO1 |