| 14:53 EST |  Overcast Light Snow | -2°C / 28°F | -6°C / 21°F | 74% | 1018 mb (30.06 in) | SW 15 kph (SW 9.2 mph) | 0.00 mm (0.00 in) | 6SM |
| | KGRR 041953Z 22008KT 6SM -SN FEW012 BKN030 OVC046 M02/M06 A3006 RMK AO2 SNE02B23 SLP190 P0000 T10221061 |
| 14:49 EST |  Overcast Light Snow | -2°C / 28°F | -6°C / 21°F | 74% | 1018 mb (30.06 in) | SW 17 kph (SW 10.4 mph) | 0.00 mm (0.00 in) | 5SM |
| | KGRR 041949Z 22009KT 5SM -SN FEW012 BKN030 OVC048 M02/M06 A3006 RMK AO2 SNE02B23 P0000 |
| 14:32 EST |  Overcast Light Snow | -2°C / 28°F | -6°C / 21°F | 74% | 1018 mb (30.06 in) | SW 20 kph (SW 12.7 mph) | 0.00 mm (0.00 in) | 1 1/2SM |
| | KGRR 041932Z 22011KT 1 1/2SM -SN FEW012 BKN029 OVC046 M02/M06 A3006 RMK AO2 SNE02B23 P0000 |
| 13:53 EST |  Overcast Light Snow | -2°C / 28°F | -7°C / 19°F | 69% | 1018 mb (30.06 in) | SSW 20 kph (SSW 12.7 mph) | 0.00 mm (0.00 in) | 8SM |
| | KGRR 041853Z 25011KT 8SM -SN OVC041 M02/M07 A3006 RMK AO2 SNB50 SLP191 P0000 T10171072 |
| 12:53 EST |  Mostly Cloudy | -1°C / 30°F | -8°C / 18°F | 59% | 1018 mb (30.06 in) | SSW 30 kph (SSW 18.4 mph) | - | 10SM |
| | KGRR 041753Z 24016KT 10SM SCT033 BKN049 M01/M08 A3006 RMK AO2 SLP188 4/006 60011 T10111078 11006 21033 50001 |
| 11:53 EST |  Mostly Cloudy | -1°C / 30°F | -5°C / 23°F | 75% | 1018 mb (30.06 in) | SSW 13 kph (SSW 8.1 mph) | 0.25 mm (0.01 in) | 10SM |
| | KGRR 041653Z 24007KT 10SM FEW014 BKN036 M01/M05 A3006 RMK AO2 SNB02E36 SLP189 P0001 T10111050 |
| 11:39 EST |  Overcast | -2°C / 28°F | -5°C / 23°F | 80% | 1018 mb (30.06 in) | SSW 19 kph (SSW 11.5 mph) | 0.25 mm (0.01 in) | 9SM |
| | KGRR 041639Z 24010KT 9SM FEW008 SCT016 OVC036 M02/M05 A3006 RMK AO2 SNB02E36 CIG 029 RWY 8R P0001 |
| 11:30 EST |  Overcast Light Snow | -2°C / 28°F | -4°C / 25°F | 86% | 1018 mb (30.06 in) | SSW 17 kph (SSW 10.4 mph) | 0.25 mm (0.01 in) | 5SM |
| | KGRR 041630Z 25009KT 5SM -SN FEW008 BKN014 OVC050 M02/M04 A3007 RMK AO2 SNB02 P0001 |
| 11:23 EST |  Overcast Light Snow | -2°C / 28°F | -4°C / 25°F | 86% | 1018 mb (30.06 in) | SSW 19 kph (SSW 11.5 mph) | 0.25 mm (0.01 in) | 3/4SM |
| | KGRR 041623Z 26010KT 3/4SM -SN BR BKN008 OVC019 M02/M04 A3006 RMK AO2 SNB02 P0001 |
| 11:12 EST |  Mostly Cloudy Snow | -2°C / 28°F | -4°C / 25°F | 86% | 1018 mb (30.06 in) | SW 22 kph (SW 13.8 mph) | 0.00 mm (0.00 in) | 1/2SM |
| | KGRR 041612Z 22012G16KT 1/2SM SN FZFG SCT006 BKN012 BKN019 M02/M04 A3007 RMK AO2 SNB02 CIG 007 RWY 8R P0000 |
| 11:04 EST |  Overcast Light Snow | -2°C / 28°F | -4°C / 25°F | 86% | 1018 mb (30.06 in) | SW 13 kph (SW 8.1 mph) | 0.00 mm (0.00 in) | 1 1/2SM |
| | KGRR 041604Z 21007KT 1 1/2SM -SN FEW012 BKN019 OVC045 M02/M04 A3007 RMK AO2 SNB02 P0000 |
| 10:53 EST |  Mostly Cloudy | -2°C / 28°F | -5°C / 23°F | 80% | 1018 mb (30.06 in) | SSE 15 kph (SSE 9.2 mph) | 0.00 mm (0.00 in) | 8SM |
| | KGRR 041553Z 20008KT 8SM FEW015 BKN045 M02/M05 A3007 RMK AO2 SNE05 SLP192 P0000 T10221050 |
| 09:59 EST |  Partly Cloudy Light Snow | -3°C / 27°F | -4°C / 25°F | 93% | 1018 mb (30.06 in) | SSE 13 kph (SSE 8.1 mph) | 0.00 mm (0.00 in) | 4SM |
| | KGRR 041459Z 20007KT 4SM -SN BR FEW007 SCT014 SCT060 M03/M04 A3006 RMK AO2 VIS NE-SE 1 1/2 P0000 |
| 09:53 EST |  Overcast Light Snow | -3°C / 27°F | -4°C / 25°F | 93% | 1018 mb (30.06 in) | SW 13 kph (SW 8.1 mph) | 0.76 mm (0.03 in) | 3/4SM |
| | KGRR 041453Z 21007KT 3/4SM -SN BR FEW007 BKN017 OVC047 M03/M04 A3005 RMK AO2 SLP187 P0003 60010 T10281044 53017 |
| 09:43 EST |  Obscured Light Snow | -3°C / 27°F | -4°C / 25°F | 93% | 1018 mb (30.06 in) | SW 17 kph (SW 10.4 mph) | 0.76 mm (0.03 in) | 3/4SM |
| | KGRR 041443Z 22009KT 3/4SM -SN BR VV005 M03/M04 A3005 RMK AO2 P0003 |
| 09:23 EST |  Overcast Light Snow | -3°C / 27°F | -4°C / 25°F | 93% | 1018 mb (30.06 in) | SSW 13 kph (SSW 8.1 mph) | 0.25 mm (0.01 in) | 1 1/2SM |
| | KGRR 041423Z 24007KT 1 1/2SM -SN BR BKN004 BKN013 OVC018 M03/M04 A3005 RMK AO2 VIS 1/2V2 1/2 P0001 |
| 09:12 EST |  Overcast Light Snow | -2°C / 28°F | -4°C / 25°F | 86% | 1017 mb (30.03 in) | SSE 11 kph (SSE 6.9 mph) | 0.25 mm (0.01 in) | 1 1/2SM |
| | KGRR 041412Z 20006KT 1 1/2SM -SN BR FEW002 SCT009 OVC018 M02/M04 A3004 RMK AO2 VIS 1/2V2 1/2 P0001 |
| 08:53 EST |  Overcast Light Snow | -2°C / 28°F | -4°C / 25°F | 86% | 1017 mb (30.03 in) | SW 7 kph (SW 4.6 mph) | 1.02 mm (0.04 in) | 1 1/2SM |
| | KGRR 041353Z 23004KT 1 1/2SM -SN BR BKN005 OVC026 M02/M04 A3003 RMK AO2 SLP180 VIS 1/2V2 1/2 P0004 T10221044 |
| 08:29 EST |  Overcast Light Snow | -2°C / 28°F | -4°C / 25°F | 86% | 1017 mb (30.03 in) | SW 15 kph (SW 9.2 mph) | 0.25 mm (0.01 in) | 1 1/2SM |
| | KGRR 041329Z 23008KT 1 1/2SM -SN BR BKN007 OVC026 M02/M04 A3002 RMK AO2 VIS 1/2V2 1/2 P0001 |
| 08:12 EST |  Overcast Light Snow | -3°C / 27°F | -4°C / 25°F | 93% | 1017 mb (30.03 in) | SW 11 kph (SW 6.9 mph) | 0.25 mm (0.01 in) | 2SM |
| | KGRR 041312Z 21006KT 2SM -SN BR BKN007 OVC026 M03/M04 A3002 RMK AO2 P0001 |
| 07:53 EST |  Overcast Light Snow | -3°C / 27°F | -4°C / 25°F | 93% | 1016 mb (30 in) | SSW 13 kph (SSW 8.1 mph) | 0.76 mm (0.03 in) | 3/4SM |
| | KGRR 041253Z 24007KT 3/4SM -SN BR BKN005 OVC014 M03/M04 A3001 RMK AO2 SLP174 P0003 T10281044 |
| 07:42 EST |  Overcast Light Snow | -3°C / 27°F | -5°C / 23°F | 86% | 1016 mb (30 in) | SSW 15 kph (SSW 9.2 mph) | 0.51 mm (0.02 in) | 1 3/4SM |
| | KGRR 041242Z 25008KT 1 3/4SM -SN BR BKN005 OVC020 M03/M05 A3001 RMK AO2 P0002 |
| 07:12 EST |  Overcast Snow | -2°C / 28°F | -5°C / 23°F | 80% | 1016 mb (30 in) | SW 30 kph (SW 18.4 mph) | 0.25 mm (0.01 in) | 3/4SM |
| | KGRR 041212Z 23016G21KT 3/4SM SN BKN005 BKN010 OVC018 M02/M05 A3001 RMK AO2 P0001 |
| 06:53 EST |  Overcast Light Snow | -2°C / 28°F | -5°C / 23°F | 80% | 1016 mb (30 in) | SW 19 kph (SW 11.5 mph) | 0.25 mm (0.01 in) | 2 1/2SM |
| | KGRR 041153Z 22010KT 2 1/2SM -SN BKN015 BKN030 OVC075 M02/M05 A3000 RMK AO2 SLP169 4//// P0001 60008 70018 T10221050 11011 21028 53003 |
| 06:34 EST |  Overcast Light Snow | -3°C / 27°F | -4°C / 25°F | 93% | 1016 mb (30 in) | SW 13 kph (SW 8.1 mph) | 0.25 mm (0.01 in) | 2 1/2SM |
| | KGRR 041134Z 23007KT 2 1/2SM -SN BR SCT006 BKN020 OVC050 M03/M04 A3000 RMK AO2 CIG 015 RWY 8R P0001 |
| 06:25 EST |  Overcast Light Snow | -2°C / 28°F | -4°C / 25°F | 86% | 1016 mb (30 in) | SW 13 kph (SW 8.1 mph) | 0.25 mm (0.01 in) | 3/4SM |
| | KGRR 041125Z 22007KT 3/4SM -SN BR SCT003 BKN014 OVC021 M02/M04 A2999 RMK AO2 P0001 |
| 06:17 EST |  Overcast Light Snow | -2°C / 28°F | -4°C / 25°F | 86% | 1016 mb (30 in) | SW 15 kph (SW 9.2 mph) | 0.25 mm (0.01 in) | 1SM |
| | KGRR 041117Z 22008KT 1SM -SN BR FEW005 SCT014 OVC021 M02/M04 A2999 RMK AO2 P0001 |
| 05:57 EST |  Overcast Light Snow | -2°C / 28°F | -4°C / 25°F | 86% | 1016 mb (30 in) | SW 13 kph (SW 8.1 mph) | 0.00 mm (0.00 in) | 2 1/2SM |
| | KGRR 041057Z 23007KT 2 1/2SM -SN BR BKN016 OVC039 M02/M04 A2999 RMK AO2 P0000 |
| 05:53 EST |  Overcast Light Snow | -2°C / 28°F | -4°C / 25°F | 86% | 1016 mb (30 in) | SSW 15 kph (SSW 9.2 mph) | 0.51 mm (0.02 in) | 3SM |
| | KGRR 041053Z 24008KT 3SM -SN BR BKN016 OVC039 M02/M04 A2999 RMK AO2 SLP165 P0002 T10221044 |
| 05:49 EST |  Overcast Light Snow | -2°C / 28°F | -4°C / 25°F | 86% | 1016 mb (30 in) | SW 15 kph (SW 9.2 mph) | 0.51 mm (0.02 in) | 4SM |
| | KGRR 041049Z 23008KT 4SM -SN BR BKN016 OVC039 M02/M04 A2999 RMK AO2 P0002 |
| 05:40 EST |  Overcast Light Snow | -2°C / 28°F | -4°C / 25°F | 86% | 1016 mb (30 in) | SW 13 kph (SW 8.1 mph) | 0.51 mm (0.02 in) | 1 1/4SM |
| | KGRR 041040Z 23007KT 1 1/4SM -SN BR BKN014 OVC060 M02/M04 A2999 RMK AO2 P0002 |
| 05:29 EST |  Overcast Snow | -2°C / 28°F | -4°C / 25°F | 86% | 1016 mb (30 in) | SSW 17 kph (SSW 10.4 mph) | 0.51 mm (0.02 in) | 1/2SM |
| | KGRR 041029Z AUTO 24009KT 1/2SM SN FZFG FEW003 BKN010 OVC023 M02/M04 A2999 RMK AO2 P0002 |
| 05:14 EST |  Overcast Light Snow | -2°C / 28°F | -4°C / 25°F | 86% | 1016 mb (30 in) | SSW 17 kph (SSW 10.4 mph) | 0.25 mm (0.01 in) | 1SM |
| | KGRR 041014Z AUTO 25009KT 1SM -SN BR BKN006 OVC014 M02/M04 A2999 RMK AO2 P0001 |
| 05:07 EST |  Overcast Light Snow | -2°C / 28°F | -5°C / 23°F | 80% | 1016 mb (30 in) | SSW 15 kph (SSW 9.2 mph) | 0.25 mm (0.01 in) | 3/4SM |
| | KGRR 041007Z AUTO 25008KT 3/4SM -SN BKN005 BKN011 OVC017 M02/M05 A2999 RMK AO2 P0001 |
| 04:57 EST |  Overcast Light Snow | -2°C / 28°F | -4°C / 25°F | 86% | 1016 mb (30 in) | SW 28 kph (SW 17.3 mph) | 0.00 mm (0.00 in) | 1 3/4SM |
| | KGRR 040957Z AUTO 23015G21KT 1 3/4SM -SN BKN007 BKN017 OVC029 M02/M04 A2999 RMK AO2 P0000 |
| 04:53 EST |  Overcast Light Snow | -2°C / 28°F | -4°C / 25°F | 86% | 1016 mb (30 in) | SSW 19 kph (SSW 11.5 mph) | 0.00 mm (0.00 in) | 5SM |
| | KGRR 040953Z AUTO 24010KT 5SM -SN BR BKN007 BKN017 OVC029 M02/M04 A2999 RMK AO2 SNE18B52 SLP165 P0000 T10171039 |
| 04:42 EST |  Overcast | -2°C / 28°F | -4°C / 25°F | 86% | 1016 mb (30 in) | SW 9 kph (SW 5.8 mph) | 0.00 mm (0.00 in) | 8SM |
| | KGRR 040942Z AUTO 22005KT 8SM BKN007 BKN015 OVC070 M02/M04 A2999 RMK AO2 SNE18 P0000 |
| 04:34 EST |  Overcast | -2°C / 28°F | -4°C / 25°F | 86% | 1015 mb (29.97 in) | SW 9 kph (SW 5.8 mph) | 0.00 mm (0.00 in) | 9SM |
| | KGRR 040934Z AUTO 21005KT 9SM SCT009 BKN015 OVC070 M02/M04 A2998 RMK AO2 SNE18 P0000 |
| 04:22 EST |  Overcast | -2°C / 28°F | -4°C / 25°F | 86% | 1015 mb (29.97 in) | SSW 11 kph (SSW 6.9 mph) | 0.00 mm (0.00 in) | 8SM |
| | KGRR 040922Z AUTO 24006KT 8SM SCT016 OVC070 M02/M04 A2998 RMK AO2 SNE18 P0000 |
| 04:10 EST |  Overcast Light Snow | -2°C / 28°F | -4°C / 25°F | 86% | 1015 mb (29.97 in) | SSW 11 kph (SSW 6.9 mph) | 0.00 mm (0.00 in) | 3SM |
| | KGRR 040910Z AUTO 25006KT 3SM -SN BR FEW011 BKN021 OVC060 M02/M04 A2998 RMK AO2 P0000 |
| 04:03 EST |  Overcast Light Snow | -2°C / 28°F | -3°C / 27°F | 93% | 1015 mb (29.97 in) | SSW 13 kph (SSW 8.1 mph) | 0.00 mm (0.00 in) | 1 1/4SM |
| | KGRR 040903Z AUTO 26007KT 1 1/4SM -SN BR FEW011 BKN015 OVC029 M02/M03 A2998 RMK AO2 P0000 |
| 03:58 EST |  Overcast Light Snow | -2°C / 28°F | -3°C / 27°F | 93% | 1015 mb (29.97 in) | SSW 13 kph (SSW 8.1 mph) | 0.00 mm (0.00 in) | 1 1/4SM |
| | KGRR 040858Z AUTO 25007KT 1 1/4SM -SN BR BKN009 BKN017 OVC023 M02/M03 A2998 RMK AO2 P0000 |
| 03:53 EST |  Overcast Light Snow | -2°C / 28°F | -3°C / 27°F | 93% | 1016 mb (30 in) | SSW 17 kph (SSW 10.4 mph) | 0.25 mm (0.01 in) | 2 1/2SM |
| | KGRR 040853Z AUTO 25009KT 2 1/2SM -SN BR FEW005 BKN011 OVC023 M02/M03 A2999 RMK AO2 VIS 1 1/2 RWY 8R SLP162 P0001 60005 T10171033 53009 |
| 03:46 EST |  Overcast Light Snow | -2°C / 28°F | -3°C / 27°F | 93% | 1015 mb (29.97 in) | SSW 11 kph (SSW 6.9 mph) | 0.25 mm (0.01 in) | 1 1/2SM |
| | KGRR 040846Z AUTO 24006KT 1 1/2SM -SN BR BKN011 BKN017 OVC028 M02/M03 A2998 RMK AO2 P0001 |
| 03:39 EST |  Overcast Light Snow | -2°C / 28°F | -4°C / 25°F | 86% | 1015 mb (29.97 in) | SSW 11 kph (SSW 6.9 mph) | 0.25 mm (0.01 in) | 2SM |
| | KGRR 040839Z AUTO 26006KT 2SM -SN BR OVC011 M02/M04 A2998 RMK AO2 P0001 |
| 03:25 EST |  Overcast Light Snow | -2°C / 28°F | -4°C / 25°F | 86% | 1015 mb (29.97 in) | SSW 15 kph (SSW 9.2 mph) | 0.25 mm (0.01 in) | 4SM |
| | KGRR 040825Z AUTO 25008KT 4SM -SN BR OVC009 M02/M04 A2998 RMK AO2 CIG 006V012 P0001 |
| 03:09 EST |  Overcast Light Snow | -2°C / 28°F | -3°C / 27°F | 93% | 1015 mb (29.97 in) | SW 15 kph (SW 9.2 mph) | 0.00 mm (0.00 in) | 2SM |
| | KGRR 040809Z AUTO 23008KT 2SM -SN BR BKN007 OVC014 M02/M03 A2998 RMK AO2 P0000 |
| 03:01 EST |  Overcast Light Snow | -2°C / 28°F | -3°C / 27°F | 93% | 1015 mb (29.97 in) | SSW 15 kph (SSW 9.2 mph) | 0.00 mm (0.00 in) | 3SM |
| | KGRR 040801Z AUTO 25008KT 3SM -SN BR BKN007 BKN015 OVC022 M02/M03 A2998 RMK AO2 P0000 |
| 02:53 EST |  Overcast Light Snow | -2°C / 28°F | -3°C / 27°F | 93% | 1015 mb (29.97 in) | SSW 15 kph (SSW 9.2 mph) | 0.76 mm (0.03 in) | 1SM |
| | KGRR 040753Z AUTO 26008KT 1SM -SN BR SCT004 BKN009 OVC025 M02/M03 A2998 RMK AO2 SLP161 P0003 T10171033 |
| 02:36 EST |  Obscured Light Snow | -2°C / 28°F | -3°C / 27°F | 93% | 1015 mb (29.97 in) | W 20 kph (W 12.7 mph) | 0.51 mm (0.02 in) | 3/4SM |
| | KGRR 040736Z AUTO 27011KT 3/4SM -SN BR VV004 M02/M03 A2997 RMK AO2 P0002 |
| 02:28 EST |  Overcast Heavy Snow | -2°C / 28°F | -3°C / 27°F | 93% | 1015 mb (29.97 in) | W 22 kph (W 13.8 mph) | 0.51 mm (0.02 in) | 1/4SM |
| | KGRR 040728Z AUTO 28012G19KT 1/4SM +SN FZFG BKN002 OVC008 M02/M03 A2997 RMK AO2 P0002 |
| 01:53 EST |  Overcast Snow | -1°C / 30°F | -3°C / 27°F | 86% | 1015 mb (29.97 in) | SSW 20 kph (SSW 12.7 mph) | 0.25 mm (0.01 in) | 1/2SM |
| | KGRR 040653Z AUTO 26011KT 1/2SM SN FZFG BKN003 OVC010 M01/M03 A2996 RMK AO2 SLP154 P0001 T10111033 |
| 01:37 EST |  Overcast Snow | -2°C / 28°F | -3°C / 27°F | 93% | 1015 mb (29.97 in) | SSW 19 kph (SSW 11.5 mph) | 0.25 mm (0.01 in) | 1/2SM |
| | KGRR 040637Z AUTO 25010KT 1/2SM SN FZFG BKN005 BKN012 OVC040 M02/M03 A2996 RMK AO2 P0001 |
| 01:28 EST |  Overcast Light Snow | -1°C / 30°F | -4°C / 25°F | 80% | 1015 mb (29.97 in) | SSW 30 kph (SSW 18.4 mph) | 0.00 mm (0.00 in) | 3/4SM |
| | KGRR 040628Z AUTO 26016KT 3/4SM -SN BKN012 BKN040 OVC055 M01/M04 A2996 RMK AO2 P0000 |
| 01:21 EST |  Overcast Light Snow | -1°C / 30°F | -4°C / 25°F | 80% | 1015 mb (29.97 in) | SSW 22 kph (SSW 13.8 mph) | 0.00 mm (0.00 in) | 2SM |
| | KGRR 040621Z AUTO 25012KT 2SM -SN BKN014 BKN036 OVC055 M01/M04 A2996 RMK AO2 P0000 |
| 00:53 EST |  Overcast Light Snow | -1°C / 30°F | -4°C / 25°F | 80% | 1015 mb (29.97 in) | SW 28 kph (SW 17.3 mph) | 0.51 mm (0.02 in) | 6SM |
| | KGRR 040553Z AUTO 23015KT 6SM -SN FEW002 BKN033 OVC055 M01/M04 A2996 RMK AO2 UPB46E50SNB19E46B50 SLP153 P0002 60010 T10111039 10011 21011 53006 |
| 00:48 EST |  Overcast Unknown Precip | -1°C / 30°F | -4°C / 25°F | 80% | 1015 mb (29.97 in) | SW 26 kph (SW 16.1 mph) | 0.51 mm (0.02 in) | 7SM |
| | KGRR 040548Z AUTO 23014KT 7SM UP SCT002 BKN031 OVC055 M01/M04 A2996 RMK AO2 UPB46SNB19E46 P0002 |
| 00:41 EST |  Overcast Light Snow | -1°C / 30°F | -4°C / 25°F | 80% | 1015 mb (29.97 in) | SSW 30 kph (SSW 18.4 mph) | 0.51 mm (0.02 in) | 4SM |
| | KGRR 040541Z AUTO 24016KT 4SM -SN SCT002 BKN013 OVC045 M01/M04 A2996 RMK AO2 LTG DSNT W SNB19 P0002 |
| 00:38 EST |  Overcast Light Snow | -1°C / 30°F | -3°C / 27°F | 86% | 1015 mb (29.97 in) | SSW 28 kph (SSW 17.3 mph) | 0.51 mm (0.02 in) | 1 1/4SM |
| | KGRR 040538Z AUTO 24015KT 1 1/4SM -SN BR SCT002 BKN013 OVC045 M01/M03 A2996 RMK AO2 LTG DSNT W SNB19 P0002 |
| 00:34 EST |  Overcast Snow | -1°C / 30°F | -3°C / 27°F | 86% | 1015 mb (29.97 in) | SSW 24 kph (SSW 15 mph) | 0.51 mm (0.02 in) | 1/2SM |
| | KGRR 040534Z AUTO 25013G18KT 1/2SM SN FZFG BKN002 OVC013 M01/M03 A2996 RMK AO2 LTG DSNT W SNB19 P0002 |
| 00:26 EST |  Overcast Heavy Snow | -1°C / 30°F | -3°C / 27°F | 86% | 1015 mb (29.97 in) | SSW 19 kph (SSW 11.5 mph) | 0.25 mm (0.01 in) | 1/4SM |
| | KGRR 040526Z AUTO 26010KT 1/4SM +SN FZFG SCT002 BKN013 OVC018 M01/M03 A2996 RMK AO2 SNB19 P0001 |
| 00:20 EST |  Overcast Light Snow | -1°C / 30°F | -3°C / 27°F | 86% | 1015 mb (29.97 in) | W 19 kph (W 11.5 mph) | 0.00 mm (0.00 in) | 1SM |
| | KGRR 040520Z AUTO 28010KT 1SM -SN FEW002 BKN013 OVC028 M01/M03 A2996 RMK AO2 SNB19 P0000 |
| 00:18 EST |  Overcast Hazy | -1°C / 30°F | -3°C / 27°F | 86% | 1015 mb (29.97 in) | W 19 kph (W 11.5 mph) | - | 2 1/2SM |
| | KGRR 040518Z AUTO 27010KT 2 1/2SM HZ BKN013 BKN018 OVC065 M01/M03 A2996 RMK AO2 VIS 1 1/2 RWY 8R |
| 00:07 EST |  Overcast | -1°C / 30°F | -3°C / 27°F | 86% | 1014 mb (29.94 in) | SSW 15 kph (SSW 9.2 mph) | - | 10SM |
| | KGRR 040507Z AUTO 26008KT 10SM BKN017 BKN026 OVC065 M01/M03 A2995 RMK AO2 |