| 08:15 PST |  Clear | -4°C / 25°F | -9°C / 16°F | 69% | 1020 mb (30.12 in) | SSE 17 kph (SSE 10.4 mph) | - | 10SM |
| | KOTH 101615Z 15009KT 10SM CLR M04/M09 A3011 RMK AO1 |
| 07:55 PST |  Clear | -4°C / 25°F | -10°C / 14°F | 63% | 1020 mb (30.12 in) | SSE 17 kph (SSE 10.4 mph) | - | 10SM |
| | KOTH 101555Z 16009KT 10SM CLR M04/M10 A3011 RMK AO1 |
| 07:35 PST |  Clear | -4°C / 25°F | -10°C / 14°F | 63% | 1020 mb (30.12 in) | SSE 15 kph (SSE 9.2 mph) | - | 10SM |
| | KOTH 101535Z 16008KT 10SM CLR M04/M10 A3011 RMK AO1 |
| 07:15 PST |  Clear | -4°C / 25°F | -10°C / 14°F | 63% | 1020 mb (30.12 in) | SSE 17 kph (SSE 10.4 mph) | - | 10SM |
| | KOTH 101515Z 16009KT 10SM CLR M04/M10 A3012 RMK AO1 |
| 06:55 PST |  Clear | -4°C / 25°F | -9°C / 16°F | 69% | 1020 mb (30.12 in) | SE 20 kph (SE 12.7 mph) | - | 10SM |
| | KOTH 101455Z 14011KT 10SM CLR M04/M09 A3011 RMK AO1 57007 |
| 06:35 PST |  Clear | -4°C / 25°F | -10°C / 14°F | 63% | 1020 mb (30.12 in) | SSE 17 kph (SSE 10.4 mph) | - | 10SM |
| | KOTH 101435Z 15009KT 10SM CLR M04/M10 A3012 RMK AO1 |
| 06:15 PST |  Clear | -4°C / 25°F | -10°C / 14°F | 63% | 1020 mb (30.12 in) | SE 15 kph (SE 9.2 mph) | - | 10SM |
| | KOTH 101415Z 14008KT 10SM CLR M04/M10 A3013 RMK AO1 |
| 05:55 PST |  Clear | -4°C / 25°F | -10°C / 14°F | 63% | 1020 mb (30.12 in) | SSE 19 kph (SSE 11.5 mph) | - | 10SM |
| | KOTH 101355Z 16010KT 10SM CLR M04/M10 A3013 RMK AO1 |
| 05:35 PST |  Clear | -4°C / 25°F | -10°C / 14°F | 63% | 1020 mb (30.12 in) | SSE 17 kph (SSE 10.4 mph) | - | 10SM |
| | KOTH 101335Z 15009KT 10SM CLR M04/M10 A3013 RMK AO1 |
| 05:15 PST |  Clear | -4°C / 25°F | -10°C / 14°F | 63% | 1020 mb (30.12 in) | SSE 17 kph (SSE 10.4 mph) | - | 10SM |
| | KOTH 101315Z 16009KT 10SM CLR M04/M10 A3013 RMK AO1 |
| 04:55 PST |  Clear | -4°C / 25°F | -10°C / 14°F | 63% | 1020 mb (30.12 in) | SSE 17 kph (SSE 10.4 mph) | - | 10SM |
| | KOTH 101255Z 16009KT 10SM CLR M04/M10 A3013 RMK AO1 |
| 04:35 PST |  Clear | -5°C / 23°F | -10°C / 14°F | 68% | 1020 mb (30.12 in) | SSE 17 kph (SSE 10.4 mph) | - | 10SM |
| | KOTH 101235Z 15009KT 10SM CLR M05/M10 A3013 RMK AO1 |
| 04:15 PST |  Clear | -5°C / 23°F | -11°C / 12°F | 63% | 1020 mb (30.12 in) | SSE 13 kph (SSE 8.1 mph) | - | 10SM |
| | KOTH 101215Z 15007KT 10SM CLR M05/M11 A3013 RMK AO1 |
| 03:55 PST |  Clear | -4°C / 25°F | -10°C / 14°F | 63% | 1020 mb (30.12 in) | SSE 15 kph (SSE 9.2 mph) | - | 10SM |
| | KOTH 101155Z 15008KT 10SM CLR M04/M10 A3013 RMK AO1 11020 21040 54000 |
| 03:35 PST |  Clear | -4°C / 25°F | -10°C / 14°F | 63% | 1021 mb (30.15 in) | SSE 17 kph (SSE 10.4 mph) | - | 10SM |
| | KOTH 101135Z 15009KT 10SM CLR M04/M10 A3014 RMK AO1 |
| 03:15 PST |  Clear | -4°C / 25°F | -10°C / 14°F | 63% | 1021 mb (30.15 in) | SE 15 kph (SE 9.2 mph) | - | 10SM |
| | KOTH 101115Z 14008KT 10SM CLR M04/M10 A3014 RMK AO1 |
| 02:55 PST |  Clear | -4°C / 25°F | -10°C / 14°F | 63% | 1021 mb (30.15 in) | SE 13 kph (SE 8.1 mph) | - | 10SM |
| | KOTH 101055Z 13007KT 10SM CLR M04/M10 A3015 RMK AO1 |
| 02:35 PST |  Clear | -4°C / 25°F | -11°C / 12°F | 59% | 1021 mb (30.15 in) | SSE 17 kph (SSE 10.4 mph) | - | 10SM |
| | KOTH 101035Z 15009KT 10SM CLR M04/M11 A3015 RMK AO1 |
| 02:15 PST |  Clear | -4°C / 25°F | -10°C / 14°F | 63% | 1021 mb (30.15 in) | SSE 15 kph (SSE 9.2 mph) | - | 10SM |
| | KOTH 101015Z 15008KT 10SM CLR M04/M10 A3014 RMK AO1 |
| 01:55 PST |  Clear | -4°C / 25°F | -10°C / 14°F | 63% | 1021 mb (30.15 in) | SSE 15 kph (SSE 9.2 mph) | - | 10SM |
| | KOTH 100955Z 15008KT 10SM CLR M04/M10 A3014 RMK AO1 |
| 01:35 PST |  Clear | -4°C / 25°F | -10°C / 14°F | 63% | 1020 mb (30.12 in) | SSE 15 kph (SSE 9.2 mph) | - | 10SM |
| | KOTH 100935Z 15008KT 10SM CLR M04/M10 A3013 RMK AO1 |
| 01:15 PST |  Clear | -4°C / 25°F | -11°C / 12°F | 59% | 1020 mb (30.12 in) | SSE 15 kph (SSE 9.2 mph) | - | 10SM |
| | KOTH 100915Z 15008KT 10SM CLR M04/M11 A3013 RMK AO1 |
| 00:55 PST |  Clear | -4°C / 25°F | -10°C / 14°F | 63% | 1020 mb (30.12 in) | SSE 15 kph (SSE 9.2 mph) | - | 10SM |
| | KOTH 100855Z 16008KT 10SM CLR M04/M10 A3013 RMK AO1 57010 |
| 00:35 PST |  Clear | -4°C / 25°F | -10°C / 14°F | 63% | 1021 mb (30.15 in) | SSE 13 kph (SSE 8.1 mph) | - | 10SM |
| | KOTH 100835Z 16007KT 10SM CLR M04/M10 A3014 RMK AO1 |
| 00:15 PST |  Clear | -3°C / 27°F | -10°C / 14°F | 59% | 1021 mb (30.15 in) | SSE 15 kph (SSE 9.2 mph) | - | 10SM |
| | KOTH 100815Z 15008KT 10SM CLR M03/M10 A3015 RMK AO1 |