| 08:03 EST |  Partly Cloudy Hazy | 12°C / 54°F | 9°C / 48°F | 82% | 1013 mb (29.91 in) | N 7 kph (N 4.6 mph) | - | 6SM |
| | KMRH 261303Z AUTO 36004KT 6SM HZ FEW007 12/09 A2990 RMK AO2 |
| 07:56 EST |  Clear Fog And Mist | 12°C / 54°F | 9°C / 48°F | 82% | 1013 mb (29.91 in) | N 7 kph (N 4.6 mph) | - | 6SM |
| | KMRH 261256Z AUTO 36004KT 6SM BR CLR 12/09 A2991 RMK AO2 SLP127 T01170094 |
| 06:56 EST |  Clear | 12°C / 54°F | 9°C / 48°F | 82% | 1013 mb (29.91 in) | N 11 kph (N 6.9 mph) | - | 7SM |
| | KMRH 261156Z AUTO 35006KT 7SM CLR 12/09 A2990 RMK AO2 SLP126 70019 T01170089 10128 20111 53001 |
| 05:56 EST |  Clear | 12°C / 54°F | 9°C / 48°F | 82% | 1012 mb (29.88 in) | N 9 kph (N 5.8 mph) | - | 7SM |
| | KMRH 261056Z AUTO 36005KT 7SM CLR 12/09 A2989 RMK AO2 SLP120 T01170094 |
| 04:56 EST |  Clear | 12°C / 54°F | 9°C / 48°F | 82% | 1012 mb (29.88 in) | N 13 kph (N 8.1 mph) | - | 8SM |
| | KMRH 260956Z AUTO 01007KT 8SM CLR 12/09 A2988 RMK AO2 SLP119 T01170094 |
| 03:56 EST |  Clear | 12°C / 54°F | 9°C / 48°F | 82% | 1013 mb (29.91 in) | NNW 11 kph (NNW 6.9 mph) | - | 9SM |
| | KMRH 260856Z AUTO 34006KT 9SM CLR 12/09 A2990 RMK AO2 SLP126 T01220094 58006 |
| 02:56 EST |  Partly Cloudy | 12°C / 54°F | 9°C / 48°F | 82% | 1013 mb (29.91 in) | N 13 kph (N 8.1 mph) | - | 10SM |
| | KMRH 260756Z AUTO 36007KT 10SM FEW120 12/09 A2991 RMK AO2 SLP130 T01220094 |
| 01:56 EST |  Mostly Cloudy | 12°C / 54°F | 9°C / 48°F | 82% | 1013 mb (29.91 in) | N 7 kph (N 4.6 mph) | - | 10SM |
| | KMRH 260656Z AUTO 36004KT 10SM BKN110 12/09 A2992 RMK AO2 SLP131 T01220094 |
| 00:56 EST |  Mostly Cloudy | 13°C / 55°F | 9°C / 48°F | 77% | 1013 mb (29.91 in) | NNW 15 kph (NNW 9.2 mph) | - | 10SM |
| | KMRH 260556Z AUTO 34008KT 10SM BKN120 13/09 A2992 RMK AO2 SLP132 60000 T01280094 10128 20122 58022 |