| 06:15 PST |  Overcast | N/A | N/A | N/A | 1031 mb (30.45 in) | Calm | - | 10SM |
| | KCVO 281415Z AUTO 00000KT 10SM OVC041 A3044 RMK AO1 |
| 05:55 PST |  Overcast | N/A | N/A | N/A | 1030 mb (30.42 in) | SE 6 kph (SE 3.5 mph) | - | 10SM |
| | KCVO 281355Z AUTO 13003KT 10SM OVC041 A3042 RMK AO1 |
| 05:35 PST |  Overcast | N/A | N/A | N/A | 1030 mb (30.42 in) | SSE 7 kph (SSE 4.6 mph) | - | 10SM |
| | KCVO 281335Z AUTO 16004KT 10SM OVC041 A3042 RMK AO1 |
| 05:15 PST |  Overcast | N/A | N/A | N/A | 1030 mb (30.42 in) | Calm | - | 10SM |
| | KCVO 281315Z AUTO 00000KT 10SM OVC041 A3042 RMK AO1 |
| 04:55 PST |  Overcast | N/A | N/A | N/A | 1030 mb (30.42 in) | S 6 kph (S 3.5 mph) | - | 10SM |
| | KCVO 281255Z AUTO 18003KT 10SM OVC041 A3042 RMK AO1 |
| 04:35 PST |  Overcast | N/A | N/A | N/A | 1030 mb (30.42 in) | Calm | - | 10SM |
| | KCVO 281235Z AUTO 00000KT 10SM OVC041 A3042 RMK AO1 |
| 04:15 PST |  Overcast | N/A | N/A | N/A | 1030 mb (30.42 in) | Calm | - | 10SM |
| | KCVO 281215Z AUTO 00000KT 10SM OVC041 A3042 RMK AO1 |
| 03:55 PST |  Overcast | N/A | N/A | N/A | 1030 mb (30.42 in) | Calm | - | 10SM |
| | KCVO 281155Z AUTO 00000KT 10SM OVC041 A3042 RMK AO1 70011 52003 |
| 03:35 PST |  Overcast | N/A | N/A | N/A | 1030 mb (30.42 in) | Calm | - | 10SM |
| | KCVO 281135Z AUTO 00000KT 10SM OVC041 A3042 RMK AO1 |
| 03:15 PST |  Overcast | N/A | N/A | N/A | 1030 mb (30.42 in) | Calm | - | 10SM |
| | KCVO 281115Z AUTO 00000KT 10SM OVC041 A3041 RMK AO1 |
| 02:55 PST |  Overcast | N/A | N/A | N/A | 1030 mb (30.42 in) | Calm | - | 10SM |
| | KCVO 281055Z AUTO 00000KT 10SM OVC041 A3041 RMK AO1 |
| 02:35 PST |  Overcast | N/A | N/A | N/A | 1030 mb (30.42 in) | Calm | - | 10SM |
| | KCVO 281035Z AUTO 00000KT 10SM OVC043 A3042 RMK AO1 |
| 02:15 PST |  Overcast | N/A | N/A | N/A | 1030 mb (30.42 in) | Calm | - | 10SM |
| | KCVO 281015Z AUTO 00000KT 10SM OVC043 A3042 RMK AO1 |
| 01:55 PST |  Overcast | N/A | N/A | N/A | 1030 mb (30.42 in) | NW 7 kph (NW 4.6 mph) | - | 10SM |
| | KCVO 280955Z AUTO 31004KT 10SM OVC043 A3042 RMK AO1 |
| 01:35 PST |  Overcast | N/A | N/A | N/A | 1030 mb (30.42 in) | Calm | - | 10SM |
| | KCVO 280935Z AUTO 00000KT 10SM OVC043 A3041 RMK AO1 |
| 01:15 PST |  Overcast | N/A | N/A | N/A | 1030 mb (30.42 in) | SSW 6 kph (SSW 3.5 mph) | - | 10SM |
| | KCVO 280915Z AUTO 24003KT 10SM OVC043 A3041 RMK AO1 |
| 00:55 PST |  Overcast | N/A | N/A | N/A | 1030 mb (30.42 in) | Calm | - | 10SM |
| | KCVO 280855Z AUTO 00000KT 10SM OVC045 A3041 RMK AO1 52003 |
| 00:35 PST |  Overcast | N/A | N/A | N/A | 1030 mb (30.42 in) | Calm | - | 10SM |
| | KCVO 280835Z AUTO 00000KT 10SM OVC043 A3041 RMK AO1 |
| 00:15 PST |  Overcast | N/A | N/A | N/A | 1030 mb (30.42 in) | Calm | - | 10SM |
| | KCVO 280815Z AUTO 00000KT 10SM OVC045 A3041 RMK AO1 |