| 06:54 PST |  Clear | 2°C / 36°F | -2°C / 28°F | 75% | 1017 mb (30.03 in) | NNE 6 kph (NNE 3.5 mph) | - | 10SM |
| | KRBL 221454Z AUTO 02003KT 10SM CLR 02/M02 A3003 RMK AO2 SLP170 T00171022 53015 FZRANO |
| 05:54 PST |  Clear | 4°C / 39°F | -3°C / 27°F | 61% | 1016 mb (30 in) | NW 9 kph (NW 5.8 mph) | - | 10SM |
| | KRBL 221354Z AUTO 32005KT 10SM CLR 04/M03 A3001 RMK AO2 SLP162 T00441033 |
| 04:54 PST |  Clear | 4°C / 39°F | -2°C / 28°F | 65% | 1016 mb (30 in) | NW 13 kph (NW 8.1 mph) | - | 10SM |
| | KRBL 221254Z AUTO 32007KT 10SM CLR 04/M02 A2999 RMK AO2 SLP154 T00391022 |
| 03:54 PST |  Clear | 4°C / 39°F | -2°C / 28°F | 65% | 1016 mb (30 in) | NW 15 kph (NW 9.2 mph) | - | 10SM |
| | KRBL 221154Z AUTO 31008KT 10SM CLR 04/M02 A2999 RMK AO2 SLP155 70016 T00441022 10078 20044 50016 |
| 02:54 PST |  Clear | 6°C / 43°F | -2°C / 28°F | 57% | 1016 mb (30 in) | NNW 24 kph (NNW 15 mph) | - | 10SM |
| | KRBL 221054Z AUTO 33013KT 10SM CLR 06/M02 A2999 RMK AO2 SLP156 T00611022 |
| 01:54 PST |  Clear | 6°C / 43°F | -3°C / 27°F | 53% | 1015 mb (29.97 in) | NNW 22 kph (NNW 13.8 mph) | - | 10SM |
| | KRBL 220954Z AUTO 33012KT 10SM CLR 06/M03 A2997 RMK AO2 SLP149 T00611028 |
| 00:54 PST |  Clear | 7°C / 45°F | -2°C / 28°F | 53% | 1014 mb (29.94 in) | NNW 24 kph (NNW 15 mph) | - | 10SM |
| | KRBL 220854Z AUTO 33013G20KT 10SM CLR 07/M02 A2994 RMK AO2 SLP140 T00671022 51016 |