| 16:55 EST |  Overcast | -4°C / 25°F | -9°C / 16°F | 69% | 1021 mb (30.15 in) | SSW 17 kph (SSW 10.4 mph) | - | 10SM |
| | KIRS 042155Z AUTO 25009KT 10SM OVC027 M04/M09 A3015 RMK AO2 |
| 16:35 EST |  Overcast | -4°C / 25°F | -9°C / 16°F | 69% | 1021 mb (30.15 in) | SSW 20 kph (SSW 12.7 mph) | - | 10SM |
| | KIRS 042135Z AUTO 24011KT 10SM OVC027 M04/M09 A3015 RMK AO2 |
| 16:15 EST |  Overcast | -4°C / 25°F | -9°C / 16°F | 69% | 1021 mb (30.15 in) | SW 22 kph (SW 13.8 mph) | - | 10SM |
| | KIRS 042115Z AUTO 22012G16KT 10SM OVC027 M04/M09 A3014 RMK AO2 |
| 15:55 EST |  Mostly Cloudy | -4°C / 25°F | -9°C / 16°F | 69% | 1021 mb (30.15 in) | SSW 17 kph (SSW 10.4 mph) | - | 10SM |
| | KIRS 042055Z AUTO 25009KT 10SM BKN027 M04/M09 A3014 RMK AO2 |
| 15:35 EST |  Mostly Cloudy | -4°C / 25°F | -9°C / 16°F | 69% | 1020 mb (30.12 in) | SSW 20 kph (SSW 12.7 mph) | - | 10SM |
| | KIRS 042035Z AUTO 26011KT 10SM BKN027 M04/M09 A3013 RMK AO2 |
| 15:15 EST |  Overcast | -3°C / 27°F | -8°C / 18°F | 69% | 1020 mb (30.12 in) | SSW 22 kph (SSW 13.8 mph) | - | 10SM |
| | KIRS 042015Z AUTO 24012KT 10SM OVC027 M03/M08 A3012 RMK AO2 |
| 14:55 EST |  Mostly Cloudy | -3°C / 27°F | -8°C / 18°F | 69% | 1020 mb (30.12 in) | SSW 22 kph (SSW 13.8 mph) | - | 10SM |
| | KIRS 041955Z AUTO 24012G16KT 10SM BKN027 M03/M08 A3012 RMK AO2 |
| 14:35 EST |  Mostly Cloudy | -3°C / 27°F | -8°C / 18°F | 69% | 1020 mb (30.12 in) | SW 20 kph (SW 12.7 mph) | - | 10SM |
| | KIRS 041935Z AUTO 23011KT 10SM BKN029 M03/M08 A3011 RMK AO2 |
| 14:15 EST |  Mostly Cloudy | -3°C / 27°F | -8°C / 18°F | 69% | 1020 mb (30.12 in) | SSW 22 kph (SSW 13.8 mph) | - | 10SM |
| | KIRS 041915Z AUTO 24012KT 10SM BKN027 M03/M08 A3011 RMK AO2 |
| 13:55 EST |  Mostly Cloudy | -2°C / 28°F | -7°C / 19°F | 69% | 1020 mb (30.12 in) | SSW 19 kph (SSW 11.5 mph) | - | 10SM |
| | KIRS 041855Z AUTO 24010KT 10SM BKN027 M02/M07 A3011 RMK AO2 |
| 13:35 EST |  Mostly Cloudy | -2°C / 28°F | -7°C / 19°F | 69% | 1020 mb (30.12 in) | SW 26 kph (SW 16.1 mph) | - | 10SM |
| | KIRS 041835Z AUTO 22014G20KT 10SM BKN027 M02/M07 A3011 RMK AO2 |
| 13:15 EST |  Partly Cloudy | -2°C / 28°F | -7°C / 19°F | 69% | 1020 mb (30.12 in) | SSW 24 kph (SSW 15 mph) | - | 10SM |
| | KIRS 041815Z AUTO 24013G17KT 10SM SCT025 M02/M07 A3011 RMK AO2 |
| 12:55 EST |  Mostly Cloudy | -2°C / 28°F | -7°C / 19°F | 69% | 1020 mb (30.12 in) | SSW 24 kph (SSW 15 mph) | - | 10SM |
| | KIRS 041755Z AUTO 25013G16KT 10SM BKN023 M02/M07 A3011 RMK AO2 |
| 12:35 EST |  Partly Cloudy | -3°C / 27°F | -7°C / 19°F | 74% | 1020 mb (30.12 in) | SSW 22 kph (SSW 13.8 mph) | - | 10SM |
| | KIRS 041735Z AUTO 25012KT 10SM SCT023 M03/M07 A3012 RMK AO2 |
| 12:15 EST |  Partly Cloudy | -3°C / 27°F | -7°C / 19°F | 74% | 1020 mb (30.12 in) | SSW 24 kph (SSW 15 mph) | - | 10SM |
| | KIRS 041715Z AUTO 24013G17KT 10SM SCT021 M03/M07 A3012 RMK AO2 |
| 11:55 EST |  Mostly Cloudy | -2°C / 28°F | -7°C / 19°F | 69% | 1020 mb (30.12 in) | SW 26 kph (SW 16.1 mph) | - | 10SM |
| | KIRS 041655Z AUTO 23014KT 10SM BKN021 M02/M07 A3011 RMK AO2 |
| 11:35 EST |  Overcast | -2°C / 28°F | -6°C / 21°F | 74% | 1020 mb (30.12 in) | SW 24 kph (SW 15 mph) | - | 10SM |
| | KIRS 041635Z AUTO 22013G20KT 10SM OVC021 M02/M06 A3012 RMK AO2 |
| 11:15 EST |  Mostly Cloudy | -3°C / 27°F | -7°C / 19°F | 74% | 1020 mb (30.12 in) | SW 26 kph (SW 16.1 mph) | - | 10SM |
| | KIRS 041615Z AUTO 23014G19KT 10SM SCT021 BKN032 M03/M07 A3012 RMK AO2 |
| 10:55 EST |  Partly Cloudy | -3°C / 27°F | -7°C / 19°F | 74% | 1020 mb (30.12 in) | SSW 24 kph (SSW 15 mph) | - | 10SM |
| | KIRS 041555Z AUTO 24013G19KT 10SM SCT021 SCT028 SCT042 M03/M07 A3012 RMK AO2 |
| 10:35 EST |  Partly Cloudy | -3°C / 27°F | -7°C / 19°F | 74% | 1020 mb (30.12 in) | SSW 26 kph (SSW 16.1 mph) | - | 10SM |
| | KIRS 041535Z AUTO 25014KT 10SM SCT019 M03/M07 A3012 RMK AO2 |
| 10:15 EST |  Partly Cloudy | -4°C / 25°F | -7°C / 19°F | 80% | 1020 mb (30.12 in) | SSW 30 kph (SSW 18.4 mph) | - | 10SM |
| | KIRS 041515Z AUTO 24016G20KT 10SM SCT050 M04/M07 A3012 RMK AO2 |
| 09:55 EST |  Partly Cloudy | -4°C / 25°F | -7°C / 19°F | 80% | 1020 mb (30.12 in) | SW 22 kph (SW 13.8 mph) | - | 10SM |
| | KIRS 041455Z AUTO 22012KT 10SM SCT018 M04/M07 A3011 RMK AO2 |
| 09:35 EST |  Partly Cloudy | -4°C / 25°F | -7°C / 19°F | 80% | 1020 mb (30.12 in) | SW 22 kph (SW 13.8 mph) | - | 10SM |
| | KIRS 041435Z AUTO 23012G17KT 10SM SCT016 M04/M07 A3011 RMK AO2 |
| 09:15 EST |  Mostly Cloudy | -5°C / 23°F | -7°C / 19°F | 86% | 1019 mb (30.09 in) | SW 20 kph (SW 12.7 mph) | - | 10SM |
| | KIRS 041415Z AUTO 23011KT 10SM SCT016 BKN050 M05/M07 A3010 RMK AO2 |
| 08:55 EST |  Mostly Cloudy | -5°C / 23°F | -7°C / 19°F | 86% | 1019 mb (30.09 in) | SW 22 kph (SW 13.8 mph) | - | 10SM |
| | KIRS 041355Z AUTO 23012G18KT 10SM SCT014 BKN050 M05/M07 A3010 RMK AO2 |
| 08:35 EST |  Overcast | -5°C / 23°F | -8°C / 18°F | 80% | 1019 mb (30.09 in) | SSW 22 kph (SSW 13.8 mph) | - | 10SM |
| | KIRS 041335Z AUTO 24012G19KT 10SM OVC014 M05/M08 A3009 RMK AO2 |
| 08:15 EST |  Partly Cloudy | -6°C / 21°F | -7°C / 19°F | 93% | 1019 mb (30.09 in) | SSW 22 kph (SSW 13.8 mph) | - | 10SM |
| | KIRS 041315Z AUTO 24012KT 10SM SCT016 M06/M07 A3008 RMK AO2 |
| 07:55 EST |  Clear | -6°C / 21°F | -7°C / 19°F | 93% | 1018 mb (30.06 in) | SW 22 kph (SW 13.8 mph) | - | 10SM |
| | KIRS 041255Z AUTO 23012G19KT 10SM CLR M06/M07 A3007 RMK AO2 |
| 07:35 EST |  Clear | -6°C / 21°F | -7°C / 19°F | 93% | 1018 mb (30.06 in) | SW 26 kph (SW 16.1 mph) | - | 10SM |
| | KIRS 041235Z AUTO 22014KT 10SM CLR M06/M07 A3007 RMK AO2 |
| 07:15 EST |  Partly Cloudy | -6°C / 21°F | -7°C / 19°F | 93% | 1018 mb (30.06 in) | SW 22 kph (SW 13.8 mph) | - | 10SM |
| | KIRS 041215Z AUTO 22012KT 10SM SCT044 M06/M07 A3006 RMK AO2 |
| 06:55 EST |  Partly Cloudy | -6°C / 21°F | -7°C / 19°F | 93% | 1018 mb (30.06 in) | SW 15 kph (SW 9.2 mph) | - | 10SM |
| | KIRS 041155Z AUTO 22008KT 10SM SCT045 M06/M07 A3006 RMK AO2 |
| 06:35 EST |  Clear | -6°C / 21°F | -7°C / 19°F | 93% | 1018 mb (30.06 in) | SW 20 kph (SW 12.7 mph) | - | 10SM |
| | KIRS 041135Z AUTO 22011KT 10SM CLR M06/M07 A3006 RMK AO2 |
| 06:15 EST |  Clear | -5°C / 23°F | -7°C / 19°F | 86% | 1018 mb (30.06 in) | SSW 17 kph (SSW 10.4 mph) | - | 10SM |
| | KIRS 041115Z AUTO 24009G17KT 10SM CLR M05/M07 A3006 RMK AO2 |
| 05:55 EST |  Clear | -5°C / 23°F | -7°C / 19°F | 86% | 1018 mb (30.06 in) | SW 19 kph (SW 11.5 mph) | - | 10SM |
| | KIRS 041055Z AUTO 23010KT 10SM CLR M05/M07 A3006 RMK AO2 |
| 05:35 EST |  Clear | -5°C / 23°F | -7°C / 19°F | 86% | 1018 mb (30.06 in) | SW 19 kph (SW 11.5 mph) | - | 10SM |
| | KIRS 041035Z AUTO 23010KT 10SM CLR M05/M07 A3005 RMK AO2 |
| 05:15 EST |  Clear | -5°C / 23°F | -7°C / 19°F | 86% | 1018 mb (30.06 in) | SW 20 kph (SW 12.7 mph) | - | 10SM |
| | KIRS 041015Z AUTO 23011KT 10SM CLR M05/M07 A3005 RMK AO2 |
| 04:55 EST |  Clear | -5°C / 23°F | -7°C / 19°F | 86% | 1018 mb (30.06 in) | SW 17 kph (SW 10.4 mph) | - | 10SM |
| | KIRS 040955Z AUTO 23009KT 10SM CLR M05/M07 A3005 RMK AO2 |
| 04:35 EST |  Clear | -4°C / 25°F | -7°C / 19°F | 80% | 1018 mb (30.06 in) | SW 17 kph (SW 10.4 mph) | - | 10SM |
| | KIRS 040935Z AUTO 23009G14KT 10SM CLR M04/M07 A3005 RMK AO2 |
| 04:15 EST |  Clear | -5°C / 23°F | -8°C / 18°F | 80% | 1018 mb (30.06 in) | SSW 17 kph (SSW 10.4 mph) | - | 10SM |
| | KIRS 040915Z AUTO 24009KT 10SM CLR M05/M08 A3005 RMK AO2 |
| 03:55 EST |  Clear | -4°C / 25°F | -8°C / 18°F | 74% | 1018 mb (30.06 in) | SSW 17 kph (SSW 10.4 mph) | - | 10SM |
| | KIRS 040855Z AUTO 24009KT 10SM CLR M04/M08 A3005 RMK AO2 |
| 03:35 EST |  Clear | -4°C / 25°F | -8°C / 18°F | 74% | 1018 mb (30.06 in) | SSW 19 kph (SSW 11.5 mph) | - | 10SM |
| | KIRS 040835Z AUTO 24010KT 10SM CLR M04/M08 A3005 RMK AO2 |
| 03:15 EST |  Clear | -4°C / 25°F | -8°C / 18°F | 74% | 1017 mb (30.03 in) | SSW 15 kph (SSW 9.2 mph) | - | 10SM |
| | KIRS 040815Z AUTO 24008KT 10SM CLR M04/M08 A3004 RMK AO2 |
| 02:55 EST |  Clear | -4°C / 25°F | -8°C / 18°F | 74% | 1017 mb (30.03 in) | SSW 17 kph (SSW 10.4 mph) | - | 10SM |
| | KIRS 040755Z AUTO 24009G15KT 10SM CLR M04/M08 A3004 RMK AO2 |
| 02:35 EST |  Clear | -4°C / 25°F | -8°C / 18°F | 74% | 1017 mb (30.03 in) | SW 22 kph (SW 13.8 mph) | - | 10SM |
| | KIRS 040735Z AUTO 23012G15KT 10SM CLR M04/M08 A3004 RMK AO2 |
| 02:15 EST |  Clear | -3°C / 27°F | -7°C / 19°F | 74% | 1017 mb (30.03 in) | SSW 19 kph (SSW 11.5 mph) | - | 10SM |
| | KIRS 040715Z AUTO 24010KT 10SM CLR M03/M07 A3003 RMK AO2 |
| 01:35 EST |  Clear | -3°C / 27°F | -6°C / 21°F | 80% | 1017 mb (30.03 in) | SSW 22 kph (SSW 13.8 mph) | - | 10SM |
| | KIRS 040635Z AUTO 24012G15KT 10SM CLR M03/M06 A3002 RMK AO2 |
| 01:15 EST |  Clear | -3°C / 27°F | -6°C / 21°F | 80% | 1017 mb (30.03 in) | SW 15 kph (SW 9.2 mph) | - | 10SM |
| | KIRS 040615Z AUTO 23008KT 10SM CLR M03/M06 A3002 RMK AO2 |
| 00:55 EST |  Clear | -3°C / 27°F | -6°C / 21°F | 80% | 1017 mb (30.03 in) | SSW 17 kph (SSW 10.4 mph) | - | 10SM |
| | KIRS 040555Z AUTO 24009KT 10SM CLR M03/M06 A3002 RMK AO2 |
| 00:35 EST |  Clear | -3°C / 27°F | -6°C / 21°F | 80% | 1017 mb (30.03 in) | SSW 19 kph (SSW 11.5 mph) | - | 10SM |
| | KIRS 040535Z AUTO 24010KT 10SM CLR M03/M06 A3002 RMK AO2 |
| 00:15 EST |  Clear | -2°C / 28°F | -6°C / 21°F | 74% | 1016 mb (30 in) | SSW 19 kph (SSW 11.5 mph) | - | 10SM |
| | KIRS 040515Z AUTO 24010KT 10SM CLR M02/M06 A3001 RMK AO2 |