| 05:53 PST |  Overcast | -5°C / 23°F | -8°C / 18°F | 80% | 1013 mb (29.91 in) | NW 17 kph (NW 10.4 mph) | - | 10SM |
| | KEPH 151353Z AUTO 30009KT 10SM OVC029 M05/M08 A2992 RMK AO2 SLP150 T10501078 |
| 05:40 PST |  Overcast | -5°C / 23°F | -8°C / 18°F | 80% | 1013 mb (29.91 in) | NW 15 kph (NW 9.2 mph) | - | 10SM |
| | KEPH 151340Z AUTO 31008KT 10SM OVC029 M05/M08 A2992 RMK AO2 |
| 05:04 PST |  Overcast | -5°C / 23°F | -8°C / 18°F | 80% | 1013 mb (29.91 in) | NW 17 kph (NW 10.4 mph) | - | 10SM |
| | KEPH 151304Z AUTO 31009KT 10SM SCT020 OVC031 M05/M08 A2992 RMK AO2 |
| 04:53 PST |  Overcast | -5°C / 23°F | -8°C / 18°F | 80% | 1013 mb (29.91 in) | NW 17 kph (NW 10.4 mph) | - | 10SM |
| | KEPH 151253Z AUTO 31009KT 10SM SCT020 BKN028 OVC033 M05/M08 A2991 RMK AO2 SLP145 T10501078 |
| 03:53 PST |  Overcast | -5°C / 23°F | -8°C / 18°F | 80% | 1013 mb (29.91 in) | NW 19 kph (NW 11.5 mph) | - | 10SM |
| | KEPH 151153Z AUTO 31010KT 10SM BKN017 OVC028 M05/M08 A2992 RMK AO2 SLP147 60004 70005 T10501083 11044 21061 56005 |
| 03:34 PST |  Overcast | -4°C / 25°F | -8°C / 18°F | 74% | 1013 mb (29.91 in) | NW 19 kph (NW 11.5 mph) | - | 10SM |
| | KEPH 151134Z AUTO 31010KT 10SM BKN017 OVC029 M04/M08 A2992 RMK AO2 |
| 02:53 PST |  Overcast | -4°C / 25°F | -7°C / 19°F | 80% | 1013 mb (29.91 in) | NW 15 kph (NW 9.2 mph) | 0.00 mm (0.00 in) | 8SM |
| | KEPH 151053Z AUTO 32008KT 8SM BKN033 OVC049 M04/M07 A2992 RMK AO2 SNE45 SLP149 P0000 T10441072 |
| 02:38 PST |  Overcast Light Snow | -5°C / 23°F | -7°C / 19°F | 86% | 1014 mb (29.94 in) | NNW 19 kph (NNW 11.5 mph) | 0.00 mm (0.00 in) | 4SM |
| | KEPH 151038Z AUTO 33010KT 4SM -SN BR BKN033 OVC049 M05/M07 A2993 RMK AO2 P0000 |
| 02:20 PST |  Overcast Light Snow | -5°C / 23°F | -7°C / 19°F | 86% | 1014 mb (29.94 in) | NNW 20 kph (NNW 12.7 mph) | 0.00 mm (0.00 in) | 2SM |
| | KEPH 151020Z AUTO 33011KT 2SM -SN BR SCT017 OVC035 M05/M07 A2993 RMK AO2 P0000 |
| 02:00 PST |  Overcast Light Snow | -6°C / 21°F | -8°C / 18°F | 86% | 1014 mb (29.94 in) | NNW 24 kph (NNW 15 mph) | 0.00 mm (0.00 in) | 2 1/2SM |
| | KEPH 151000Z AUTO 33013KT 2 1/2SM -SN BR BKN027 OVC037 M06/M08 A2993 RMK AO2 P0000 |
| 01:53 PST |  Overcast Light Snow | -6°C / 21°F | -8°C / 18°F | 86% | 1013 mb (29.91 in) | NNW 22 kph (NNW 13.8 mph) | 0.00 mm (0.00 in) | 3SM |
| | KEPH 150953Z AUTO 33012KT 3SM -SN BR BKN023 OVC037 M06/M08 A2992 RMK AO2 SLP149 P0000 T10561078 |
| 01:44 PST |  Overcast Light Snow | -6°C / 21°F | -7°C / 19°F | 93% | 1013 mb (29.91 in) | NNW 22 kph (NNW 13.8 mph) | 0.00 mm (0.00 in) | 3SM |
| | KEPH 150944Z AUTO 33012KT 3SM -SN BR OVC021 M06/M07 A2992 RMK AO2 P0000 |
| 01:39 PST |  Overcast Light Snow | -6°C / 21°F | -7°C / 19°F | 93% | 1014 mb (29.94 in) | NW 22 kph (NW 13.8 mph) | 0.00 mm (0.00 in) | 1 1/2SM |
| | KEPH 150939Z AUTO 32012KT 1 1/2SM -SN BR BKN016 OVC037 M06/M07 A2993 RMK AO2 P0000 |
| 00:53 PST |  Obscured Light Snow | -6°C / 21°F | -7°C / 19°F | 93% | 1014 mb (29.94 in) | NNW 26 kph (NNW 16.1 mph) | 0.25 mm (0.01 in) | 1SM |
| | KEPH 150853Z AUTO 33014KT 1SM -SN BR VV007 M06/M07 A2993 RMK AO2 SLP153 P0001 60004 T10561072 58024 |
| 00:40 PST |  Obscured Light Snow | -6°C / 21°F | -7°C / 19°F | 93% | 1014 mb (29.94 in) | NNW 20 kph (NNW 12.7 mph) | 0.25 mm (0.01 in) | 3/4SM |
| | KEPH 150840Z AUTO 33011KT 3/4SM -SN BR VV006 M06/M07 A2993 RMK AO2 P0001 |