| 14:53 PST |  Partly Cloudy Fog And Mist | 2°C / 36°F | 0°C / 32°F | 87% | 1022 mb (30.18 in) | Calm | - | 6SM |
| | KMFR 042253Z AUTO 00000KT 6SM BR FEW005 02/00 A3017 RMK AO2 SLP226 T00220000 TSNO |
| 14:24 PST |  Partly Cloudy Fog And Mist | 2°C / 36°F | 0°C / 32°F | 87% | 1022 mb (30.18 in) | Calm | - | 6SM |
| | KMFR 042224Z 00000KT 6SM BR FEW005 02/00 A3017 RMK AO2 |
| 13:58 PST |  Partly Cloudy Fog And Mist | 1°C / 34°F | -1°C / 30°F | 87% | 1022 mb (30.18 in) | Calm | - | 2SM |
| | KMFR 042158Z 00000KT 2SM BR SCT005 01/M01 A3018 RMK AO2 |
| 13:53 PST |  Mostly Cloudy Fog And Mist | 0°C / 32°F | -1°C / 30°F | 93% | 1022 mb (30.18 in) | Calm | - | 1 1/2SM |
| | KMFR 042153Z 00000KT 1 1/2SM BR BKN005 00/M01 A3019 RMK AO2 SLP234 T00001006 |
| 13:32 PST |  Mostly Cloudy Fog And Mist | 0°C / 32°F | -1°C / 30°F | 93% | 1023 mb (30.21 in) | NW 7 kph (NW 4.6 mph) | - | 1 1/2SM |
| | KMFR 042132Z 32004KT 1 1/2SM BR BKN005 00/M01 A3020 RMK AO2 |
| 12:53 PST |  Overcast Fog And Mist | 0°C / 32°F | -1°C / 30°F | 93% | 1023 mb (30.21 in) | NNW 6 kph (NNW 3.5 mph) | - | 1 1/2SM |
| | KMFR 042053Z 34003KT 1 1/2SM BR OVC003 00/M01 A3021 RMK AO2 SLP241 T00001006 58019 |
| 11:53 PST |  Overcast Fog And Mist | -1°C / 30°F | -1°C / 30°F | 100% | 1024 mb (30.24 in) | Calm | - | 1SM |
| | KMFR 041953Z 00000KT 1SM R14/P6000FT BR OVC003 M01/M01 A3023 RMK AO2 SLP249 T10061011 |
| 10:53 PST |  Overcast Fog And Mist | -1°C / 30°F | -2°C / 28°F | 93% | 1025 mb (30.27 in) | SSE 6 kph (SSE 3.5 mph) | - | 3/4SM |
| | KMFR 041853Z 16003KT 3/4SM R14/3500V6000FT BR OVC003 M01/M02 A3026 RMK AO2 SNE1754 SLP259 T10111022 |
| 09:53 PST |  Overcast Light Snow | -1°C / 30°F | -3°C / 27°F | 86% | 1025 mb (30.27 in) | Calm | 0.00 mm (0.00 in) | 3/4SM |
| | KMFR 041753Z 00000KT 3/4SM R14/4500VP6000FT -SN BR OVC005 M01/M03 A3027 RMK AO2 SNB1655 CIG 003V008 SLP262 P0000 60000 T10111028 11011 21022 53005 |
| 09:44 PST |  Overcast Light Snow | -1°C / 30°F | -3°C / 27°F | 86% | 1025 mb (30.27 in) | Calm | 0.00 mm (0.00 in) | 1/2SM |
| | KMFR 041744Z 00000KT 1/2SM R14/3500V6000FT -SN FZFG OVC005 M01/M03 A3026 RMK AO2 SNB1655 CIG 002V008 P0000 |
| 09:19 PST |  Overcast Light Snow | -1°C / 30°F | -3°C / 27°F | 86% | 1025 mb (30.27 in) | Calm | 0.00 mm (0.00 in) | 1/2SM |
| | KMFR 041719Z 00000KT 1/2SM R14/1600V2800FT -SN FZFG BKN002 OVC009 M01/M03 A3026 RMK AO2 SNB1655 P0000 |
| 09:03 PST |  Overcast Light Snow | -1°C / 30°F | -3°C / 27°F | 86% | 1025 mb (30.27 in) | Calm | 0.00 mm (0.00 in) | 1/4SM |
| | KMFR 041703Z 00000KT 1/4SM R14/1400V2600FT -SN FZFG OVC002 M01/M03 A3026 RMK AO2 SNB1655 P0000 |
| 08:53 PST |  Obscured Fog | -1°C / 30°F | -3°C / 27°F | 86% | 1024 mb (30.24 in) | Calm | - | 1/4SM |
| | KMFR 041653Z 00000KT 1/4SM R14/1400V1800FT FZFG VV001 M01/M03 A3025 RMK AO2 SLP257 T10111028 |
| 07:53 PST |  Obscured Fog | -2°C / 28°F | -3°C / 27°F | 93% | 1024 mb (30.24 in) | NNE 7 kph (NNE 4.6 mph) | - | 1/4SM |
| | KMFR 041553Z 02004KT 1/4SM R14/1400V1800FT FZFG VV001 M02/M03 A3024 RMK AO2 SLP254 T10171033 |
| 07:19 PST |  Obscured Fog | -1°C / 30°F | -3°C / 27°F | 86% | 1024 mb (30.24 in) | Calm | - | 1/4SM |
| | KMFR 041519Z 00000KT 1/4SM R14/1600V2200FT FZFG VV001 M01/M03 A3025 RMK AO2 |
| 07:09 PST |  Obscured Fog | -1°C / 30°F | -3°C / 27°F | 86% | 1024 mb (30.24 in) | Calm | - | 1/4SM |
| | KMFR 041509Z 00000KT 1/4SM R14/2000V2400FT FZFG VV001 M01/M03 A3025 RMK AO2 |
| 06:53 PST |  Obscured Fog | -2°C / 28°F | -3°C / 27°F | 93% | 1024 mb (30.24 in) | Calm | - | 1/4SM |
| | KMFR 041453Z 00000KT 1/4SM R14/1800V2000FT FZFG VV001 M02/M03 A3025 RMK AO2 SLP257 T10171028 51003 |
| 06:27 PST |  Obscured Fog | -1°C / 30°F | -3°C / 27°F | 86% | 1025 mb (30.27 in) | NNW 6 kph (NNW 3.5 mph) | - | 1/4SM |
| | KMFR 041427Z 34003KT 1/4SM R14/2000V2200FT FZFG VV001 M01/M03 A3026 RMK AO2 |
| 05:53 PST |  Obscured Fog | -2°C / 28°F | -2°C / 28°F | 100% | 1024 mb (30.24 in) | Calm | - | 1/4SM |
| | KMFR 041353Z 00000KT 1/4SM R14/1800V3500FT FZFG VV001 M02/M02 A3025 RMK AO2 SLP257 T10171022 |
| 05:39 PST |  Obscured Fog | -2°C / 28°F | -3°C / 27°F | 93% | 1024 mb (30.24 in) | SSE 6 kph (SSE 3.5 mph) | - | 1/2SM |
| | KMFR 041339Z AUTO 20003KT 1/2SM R14/1800V2400FT FZFG VV001 M02/M03 A3025 RMK AO2 |
| 04:53 PST |  Obscured Fog | -2°C / 28°F | -2°C / 28°F | 100% | 1024 mb (30.24 in) | Calm | - | 1/4SM |
| | KMFR 041253Z AUTO 00000KT 1/4SM R14/1400V1600FT FZFG VV001 M02/M02 A3025 RMK AO2 SLP256 T10171022 |
| 03:53 PST |  Obscured Fog | -2°C / 28°F | -3°C / 27°F | 93% | 1024 mb (30.24 in) | Calm | - | 1/4SM |
| | KMFR 041153Z AUTO 00000KT 1/4SM R14/1800FT FZFG VV001 M02/M03 A3024 RMK AO2 SLP252 T10221028 11011 21022 53004 |
| 02:53 PST |  Obscured Fog | -2°C / 28°F | -2°C / 28°F | 100% | 1024 mb (30.24 in) | Calm | - | 1/4SM |
| | KMFR 041053Z AUTO 00000KT 1/4SM R14/1600FT FZFG VV001 M02/M02 A3024 RMK AO2 SLP249 T10171022 |
| 01:53 PST |  Obscured Fog | -2°C / 28°F | -2°C / 28°F | 100% | 1024 mb (30.24 in) | Calm | - | 1/4SM |
| | KMFR 040953Z AUTO 00000KT 1/4SM R14/1400V1600FT FZFG VV001 M02/M02 A3023 RMK AO2 SLP249 T10171022 |
| 00:53 PST |  Obscured Fog | -1°C / 30°F | -2°C / 28°F | 93% | 1024 mb (30.24 in) | Calm | - | 1/4SM |
| | KMFR 040853Z AUTO 00000KT 1/4SM R14/1400V1600FT FZFG VV001 M01/M02 A3023 RMK AO2 SLP248 T10111017 53007 |
| 00:02 PST |  Obscured Fog | -2°C / 28°F | -2°C / 28°F | 100% | 1023 mb (30.21 in) | Calm | - | 1/4SM |
| | KMFR 040802Z AUTO 00000KT 1/4SM R14/1600V1800FT FZFG VV001 M02/M02 A3022 RMK AO2 |