| 05:10 PST |  Obscured Fog | -1°C / 30°F | -2°C / 28°F | 93% | 1030 mb (30.42 in) | Calm | - | 1/4SM |
| | KEUG 231310Z 00000KT 1/4SM R16R/1600V3000FT FZFG VV002 M01/M02 A3043 RMK AO2 |
| 04:54 PST |  Obscured Fog | -1°C / 30°F | -2°C / 28°F | 93% | 1030 mb (30.42 in) | Calm | - | 1/4SM |
| | KEUG 231254Z 00000KT 1/4SM R16R/1400V1600FT FZFG VV002 M01/M02 A3042 RMK AO2 SLP304 T10061022 |
| 04:47 PST |  Obscured Fog | -1°C / 30°F | -2°C / 28°F | 93% | 1030 mb (30.42 in) | W 6 kph (W 3.5 mph) | - | 1/4SM |
| | KEUG 231247Z 27003KT 1/4SM R16R/1400V1800FT FZFG VV002 M01/M02 A3042 RMK AO2 |
| 04:32 PST |  Obscured Fog | -1°C / 30°F | -3°C / 27°F | 86% | 1030 mb (30.42 in) | Calm | - | 1/2SM |
| | KEUG 231232Z 00000KT 1/2SM R16R/2000V2400FT FZFG VV002 M01/M03 A3041 RMK AO2 |
| 04:10 PST |  Obscured Fog | -2°C / 28°F | -3°C / 27°F | 93% | 1029 mb (30.39 in) | SSE 6 kph (SSE 3.5 mph) | - | 1/2SM |
| | KEUG 231210Z 20003KT 1/2SM R16R/1400V2000FT FZFG VV002 M02/M03 A3040 RMK AO2 |
| 03:54 PST |  Obscured Fog | -2°C / 28°F | -3°C / 27°F | 93% | 1030 mb (30.42 in) | Calm | - | 1/2SM |
| | KEUG 231154Z 00000KT 1/2SM R16R/2400V3500FT FZFG VV002 M02/M03 A3041 RMK AO2 SLP299 70002 T10171028 11006 21022 50004 |
| 02:56 PST |  Obscured Fog | -2°C / 28°F | -3°C / 27°F | 93% | 1030 mb (30.42 in) | Calm | - | 1/2SM |
| | KEUG 231056Z 00000KT 1/2SM R16R/4500V5500FT FZFG VV002 M02/M03 A3041 RMK AO2 VIS W 1 |
| 02:54 PST |  Obscured Fog | -2°C / 28°F | -3°C / 27°F | 93% | 1030 mb (30.42 in) | Calm | - | 1/4SM |
| | KEUG 231054Z 00000KT 1/4SM R16R/4000V5000FT FZFG VV001 M02/M03 A3042 RMK AO2 SLP302 T10171033 |
| 02:30 PST |  Obscured Fog | -2°C / 28°F | -3°C / 27°F | 93% | 1029 mb (30.39 in) | SE 6 kph (SE 3.5 mph) | - | 1/4SM |
| | KEUG 231030Z 14003KT 1/4SM R16R/1200V2400FT FZFG VV001 M02/M03 A3040 RMK AO2 |
| 02:17 PST |  Obscured Fog | -2°C / 28°F | -3°C / 27°F | 93% | 1029 mb (30.39 in) | Calm | - | 1/8SM |
| | KEUG 231017Z 00000KT 1/8SM R16R/1200V1600FT FZFG VV001 M02/M03 A3040 RMK AO2 |
| 01:54 PST |  Obscured Fog | -1°C / 30°F | -2°C / 28°F | 93% | 1030 mb (30.42 in) | Calm | - | 1/4SM |
| | KEUG 230954Z 00000KT 1/4SM R16R/1600V2000FT FZFG VV001 M01/M02 A3041 RMK AO2 SLP300 T10111022 |
| 00:54 PST |  Obscured Fog | -1°C / 30°F | -2°C / 28°F | 93% | 1029 mb (30.39 in) | SW 6 kph (SW 3.5 mph) | - | 1/4SM |
| | KEUG 230854Z 23003KT 1/4SM R16R/1600V1800FT FZFG VV001 M01/M02 A3039 RMK AO2 SLP295 T10111022 51015 |
| 00:44 PST |  Obscured Fog | -1°C / 30°F | -2°C / 28°F | 93% | 1029 mb (30.39 in) | SW 7 kph (SW 4.6 mph) | - | 1/4SM |
| | KEUG 230844Z 22004KT 1/4SM R16R/1600V2200FT FZFG VV001 M01/M02 A3039 RMK AO2 |
| 00:33 PST |  Obscured Fog And Mist | -1°C / 30°F | -2°C / 28°F | 93% | 1029 mb (30.39 in) | SW 9 kph (SW 5.8 mph) | - | 3/4SM |
| | KEUG 230833Z 21005KT 3/4SM R16R/2600VP6000FT BR VV002 M01/M02 A3039 RMK AO2 VIS 1/2V1 |
| 00:17 PST |  Mostly Cloudy Fog And Mist | -1°C / 30°F | -2°C / 28°F | 93% | 1029 mb (30.39 in) | S 7 kph (S 4.6 mph) | - | 2SM |
| | KEUG 230817Z 18004KT 2SM BR FEW001 BKN002 M01/M02 A3039 RMK AO2 VIS E 1 S 1/2 BR FEW001 |
| 00:03 PST |  Obscured Fog | -1°C / 30°F | -2°C / 28°F | 93% | 1029 mb (30.39 in) | SSE 7 kph (SSE 4.6 mph) | - | 1/2SM |
| | KEUG 230803Z 20004KT 1/2SM R16R/4500VP6000FT FZFG VV002 M01/M02 A3039 RMK AO2 VIS 1/8V1 |