| 09:55 PST |  Overcast | -4°C / 25°F | -6°C / 21°F | 86% | 1016 mb (30 in) | NE 17 kph (NE 10.4 mph) | - | 4SM |
| | KCOE 151755Z AUTO 05009KT 4SM OVC007 M04/M06 A2999 RMK AO1 11040 21070 52020 |
| 09:35 PST |  Overcast | -5°C / 23°F | -6°C / 21°F | 93% | 1015 mb (29.97 in) | NE 17 kph (NE 10.4 mph) | - | 2 1/2SM |
| | KCOE 151735Z AUTO 05009KT 2 1/2SM OVC007 M05/M06 A2998 RMK AO1 |
| 09:15 PST |  Overcast | -5°C / 23°F | -6°C / 21°F | 93% | 1015 mb (29.97 in) | NE 20 kph (NE 12.7 mph) | - | 2 1/2SM |
| | KCOE 151715Z AUTO 05011KT 2 1/2SM OVC007 M05/M06 A2997 RMK AO1 |
| 08:55 PST |  Overcast | -6°C / 21°F | -7°C / 19°F | 93% | 1015 mb (29.97 in) | NE 20 kph (NE 12.7 mph) | - | 2 1/2SM |
| | KCOE 151655Z AUTO 04011KT 2 1/2SM OVC007 M06/M07 A2997 RMK AO1 |
| 08:35 PST |  Overcast | -6°C / 21°F | -7°C / 19°F | 93% | 1015 mb (29.97 in) | NE 19 kph (NE 11.5 mph) | - | 2 1/2SM |
| | KCOE 151635Z AUTO 04010KT 2 1/2SM OVC009 M06/M07 A2996 RMK AO1 |
| 08:15 PST |  Overcast | -6°C / 21°F | -8°C / 18°F | 86% | 1015 mb (29.97 in) | NE 19 kph (NE 11.5 mph) | - | 2SM |
| | KCOE 151615Z 05010KT 2SM OVC009 M06/M08 A2996 RMK AO1 |
| 07:55 PST |  Overcast | -6°C / 21°F | -8°C / 18°F | 86% | 1014 mb (29.94 in) | NE 17 kph (NE 10.4 mph) | - | 1 1/2SM |
| | KCOE 151555Z 05009KT 1 1/2SM OVC011 M06/M08 A2995 RMK AO1 |
| 07:35 PST |  Overcast | -6°C / 21°F | -8°C / 18°F | 86% | 1014 mb (29.94 in) | NE 19 kph (NE 11.5 mph) | - | 1 3/4SM |
| | KCOE 151535Z 04010KT 1 3/4SM OVC009 M06/M08 A2994 RMK AO1 |
| 07:15 PST |  Overcast | -6°C / 21°F | -8°C / 18°F | 86% | 1014 mb (29.94 in) | NE 22 kph (NE 13.8 mph) | - | 4SM |
| | KCOE 151515Z 04012KT 4SM OVC009 M06/M08 A2994 RMK AO1 |
| 06:55 PST |  Overcast | -6°C / 21°F | -8°C / 18°F | 86% | 1014 mb (29.94 in) | NE 19 kph (NE 11.5 mph) | - | 5SM |
| | KCOE 151455Z 04010KT 5SM OVC009 M06/M08 A2993 RMK AO1 54000 |
| 06:35 PST |  Overcast | -6°C / 21°F | -8°C / 18°F | 86% | 1014 mb (29.94 in) | NE 20 kph (NE 12.7 mph) | - | 5SM |
| | KCOE 151435Z 05011KT 5SM SCT009 BKN018 OVC031 M06/M08 A2993 RMK AO1 |
| 06:15 PST |  Overcast | -6°C / 21°F | -8°C / 18°F | 86% | 1014 mb (29.94 in) | ENE 17 kph (ENE 10.4 mph) | - | 5SM |
| | KCOE 151415Z 06009KT 5SM FEW018 OVC033 M06/M08 A2993 RMK AO1 |
| 05:55 PST |  Overcast | -7°C / 19°F | -8°C / 18°F | 93% | 1013 mb (29.91 in) | ENE 17 kph (ENE 10.4 mph) | - | 5SM |
| | KCOE 151355Z 06009KT 5SM OVC033 M07/M08 A2992 RMK AO1 |
| 05:35 PST |  Overcast | -6°C / 21°F | -8°C / 18°F | 86% | 1013 mb (29.91 in) | ENE 17 kph (ENE 10.4 mph) | - | 4SM |
| | KCOE 151335Z 06009KT 4SM OVC033 M06/M08 A2992 RMK AO1 |
| 05:15 PST |  Overcast | -6°C / 21°F | -8°C / 18°F | 86% | 1014 mb (29.94 in) | NE 19 kph (NE 11.5 mph) | - | 2 1/2SM |
| | KCOE 151315Z 04010KT 2 1/2SM BKN018 BKN028 OVC033 M06/M08 A2993 RMK AO1 |
| 04:55 PST |  Overcast | -6°C / 21°F | -8°C / 18°F | 86% | 1014 mb (29.94 in) | NE 24 kph (NE 15 mph) | - | 2SM |
| | KCOE 151255Z 04013KT 2SM SCT010 OVC018 M06/M08 A2993 RMK AO1 |
| 04:35 PST |  Overcast | -7°C / 19°F | -8°C / 18°F | 93% | 1013 mb (29.91 in) | NE 24 kph (NE 15 mph) | - | 2SM |
| | KCOE 151235Z AUTO 04013KT 2SM OVC014 M07/M08 A2992 RMK AO1 |
| 04:15 PST |  Overcast | -6°C / 21°F | -8°C / 18°F | 86% | 1013 mb (29.91 in) | NE 24 kph (NE 15 mph) | - | 1 1/2SM |
| | KCOE 151215Z AUTO 04013KT 1 1/2SM OVC012 M06/M08 A2992 RMK AO1 |
| 03:55 PST |  Overcast | -7°C / 19°F | -8°C / 18°F | 93% | 1014 mb (29.94 in) | NE 24 kph (NE 15 mph) | - | 1 1/2SM |
| | KCOE 151155Z AUTO 04013KT 1 1/2SM OVC012 M07/M08 A2993 RMK AO1 11060 21070 57007 |
| 03:35 PST |  Overcast | -6°C / 21°F | -8°C / 18°F | 86% | 1014 mb (29.94 in) | NE 26 kph (NE 16.1 mph) | - | 1 3/4SM |
| | KCOE 151135Z AUTO 03014KT 1 3/4SM OVC014 M06/M08 A2993 RMK AO1 |
| 03:15 PST |  Overcast | -6°C / 21°F | -8°C / 18°F | 86% | 1014 mb (29.94 in) | NE 28 kph (NE 17.3 mph) | - | 1 3/4SM |
| | KCOE 151115Z AUTO 03015KT 1 3/4SM OVC014 M06/M08 A2993 RMK AO1 |
| 02:55 PST |  Overcast | -6°C / 21°F | -8°C / 18°F | 86% | 1014 mb (29.94 in) | NE 28 kph (NE 17.3 mph) | - | 1 3/4SM |
| | KCOE 151055Z AUTO 04015KT 1 3/4SM OVC014 M06/M08 A2994 RMK AO1 |
| 02:35 PST |  Overcast | -6°C / 21°F | -8°C / 18°F | 86% | 1014 mb (29.94 in) | NE 22 kph (NE 13.8 mph) | - | 1 3/4SM |
| | KCOE 151035Z AUTO 04012KT 1 3/4SM OVC014 M06/M08 A2994 RMK AO1 |
| 02:15 PST |  Overcast | -6°C / 21°F | -8°C / 18°F | 86% | 1014 mb (29.94 in) | NE 26 kph (NE 16.1 mph) | - | 2SM |
| | KCOE 151015Z AUTO 04014KT 2SM OVC014 M06/M08 A2995 RMK AO1 |
| 01:55 PST |  Overcast | -6°C / 21°F | -8°C / 18°F | 86% | 1014 mb (29.94 in) | NE 22 kph (NE 13.8 mph) | - | 2 1/2SM |
| | KCOE 150955Z AUTO 04012KT 2 1/2SM BKN013 OVC020 M06/M08 A2995 RMK AO1 |
| 01:35 PST |  Overcast | -6°C / 21°F | -8°C / 18°F | 86% | 1014 mb (29.94 in) | NE 24 kph (NE 15 mph) | - | 3SM |
| | KCOE 150935Z AUTO 04013KT 3SM OVC015 M06/M08 A2995 RMK AO1 |
| 01:15 PST |  Overcast | -7°C / 19°F | -9°C / 16°F | 86% | 1014 mb (29.94 in) | NE 22 kph (NE 13.8 mph) | - | 3SM |
| | KCOE 150915Z AUTO 03012G17KT 3SM BKN015 OVC022 M07/M09 A2995 RMK AO1 |
| 00:55 PST |  Overcast | -7°C / 19°F | -8°C / 18°F | 93% | 1014 mb (29.94 in) | NE 28 kph (NE 17.3 mph) | - | 3SM |
| | KCOE 150855Z AUTO 03015KT 3SM SCT017 OVC024 M07/M08 A2995 RMK AO1 57027 |
| 00:35 PST |  Overcast | -6°C / 21°F | -8°C / 18°F | 86% | 1015 mb (29.97 in) | NE 28 kph (NE 17.3 mph) | - | 2 1/2SM |
| | KCOE 150835Z AUTO 04015KT 2 1/2SM OVC017 M06/M08 A2997 RMK AO1 |
| 00:15 PST |  Overcast | -7°C / 19°F | -8°C / 18°F | 93% | 1015 mb (29.97 in) | NE 24 kph (NE 15 mph) | - | 4SM |
| | KCOE 150815Z AUTO 04013KT 4SM BKN017 OVC026 M07/M08 A2997 RMK AO1 |