| 09:16 CST |  Obscured Light Snow | -4°C / 25°F | -5°C / 23°F | 93% | 995 mb (29.38 in) | N 35 kph (N 21.9 mph) | 0.00 mm (0.00 in) | 1/2SM |
| | KATY 251516Z AUTO 01019KT 1/2SM -SN FZFG VV009 M04/M05 A2939 RMK AO2 P0000 |
| 08:53 CST |  Obscured Light Snow | -4°C / 25°F | -6°C / 21°F | 86% | 996 mb (29.41 in) | N 37 kph (N 23 mph) | 0.00 mm (0.00 in) | 3/4SM |
| | KATY 251453Z AUTO 01020KT 3/4SM -SN BR VV011 M04/M06 A2940 RMK AO2 PK WND 01026/1453 SLP987 P0000 60001 T10441056 56016 |
| 08:23 CST |  Obscured Snow | -4°C / 25°F | -6°C / 21°F | 86% | 996 mb (29.41 in) | N 33 kph (N 20.7 mph) | 0.00 mm (0.00 in) | 1/2SM |
| | KATY 251423Z AUTO 01018KT 1/2SM SN FZFG VV010 M04/M06 A2941 RMK AO2 P0000 |
| 07:53 CST |  Overcast Light Snow | -5°C / 23°F | -6°C / 21°F | 93% | 996 mb (29.41 in) | N 37 kph (N 23 mph) | 0.00 mm (0.00 in) | 1SM |
| | KATY 251353Z AUTO 36020KT 1SM -SN BR BKN010 OVC016 M05/M06 A2942 RMK AO2 SLP994 P0000 T10501061 |
| 07:45 CST |  Overcast Light Snow | -5°C / 23°F | -6°C / 21°F | 93% | 997 mb (29.44 in) | N 33 kph (N 20.7 mph) | 0.00 mm (0.00 in) | 1SM |
| | KATY 251345Z AUTO 36018G22KT 1SM -SN BR SCT010 OVC018 M05/M06 A2943 RMK AO2 P0000 |
| 07:37 CST |  Overcast Light Snow | -6°C / 21°F | -7°C / 19°F | 93% | 997 mb (29.44 in) | N 26 kph (N 16.1 mph) | 0.00 mm (0.00 in) | 3/4SM |
| | KATY 251337Z AUTO 35014KT 3/4SM -SN BR FEW008 OVC016 M06/M07 A2944 RMK AO2 P0000 |
| 07:24 CST |  Overcast Light Snow | -7°C / 19°F | -8°C / 18°F | 93% | 997 mb (29.44 in) | NNW 24 kph (NNW 15 mph) | 0.00 mm (0.00 in) | 3/4SM |
| | KATY 251324Z AUTO 34013KT 3/4SM -SN BR FEW008 BKN014 OVC020 M07/M08 A2944 RMK AO2 P0000 |
| 07:22 CST |  Overcast Light Snow | -7°C / 19°F | -8°C / 18°F | 93% | 997 mb (29.44 in) | NNW 24 kph (NNW 15 mph) | 0.00 mm (0.00 in) | 1SM |
| | KATY 251322Z AUTO 34013KT 1SM -SN BR FEW008 BKN014 OVC019 M07/M08 A2945 RMK AO2 P0000 |
| 07:09 CST |  Overcast Light Snow | -7°C / 19°F | -8°C / 18°F | 93% | 997 mb (29.44 in) | N 28 kph (N 17.3 mph) | 0.00 mm (0.00 in) | 1SM |
| | KATY 251309Z AUTO 35015KT 1SM -SN BR BKN014 OVC021 M07/M08 A2945 RMK AO2 P0000 |
| 06:53 CST |  Overcast Light Snow | -8°C / 18°F | -9°C / 16°F | 93% | 997 mb (29.44 in) | N 26 kph (N 16.1 mph) | 0.25 mm (0.01 in) | 1SM |
| | KATY 251253Z AUTO 35014KT 1SM -SN BR SCT009 OVC019 M08/M09 A2945 RMK AO2 SLP006 P0001 T10831094 |
| 06:51 CST |  Overcast Light Snow | -8°C / 18°F | -9°C / 16°F | 93% | 997 mb (29.44 in) | NNW 28 kph (NNW 17.3 mph) | 0.25 mm (0.01 in) | 1SM |
| | KATY 251251Z AUTO 34015KT 1SM -SN BR SCT009 OVC019 M08/M09 A2945 RMK AO2 P0001 |
| 06:44 CST |  Overcast Light Snow | -8°C / 18°F | -9°C / 16°F | 93% | 997 mb (29.44 in) | N 30 kph (N 18.4 mph) | 0.25 mm (0.01 in) | 1SM |
| | KATY 251244Z AUTO 35016KT 1SM -SN BR BKN009 OVC019 M08/M09 A2945 RMK AO2 P0001 |
| 06:30 CST |  Overcast Light Snow | -9°C / 16°F | -10°C / 14°F | 93% | 998 mb (29.47 in) | NNW 32 kph (NNW 19.6 mph) | 0.25 mm (0.01 in) | 3/4SM |
| | KATY 251230Z AUTO 34017G25KT 3/4SM -SN BR BKN009 OVC021 M09/M10 A2946 RMK AO2 P0001 |
| 05:53 CST |  Obscured Light Snow | -10°C / 14°F | -11°C / 12°F | 92% | 998 mb (29.47 in) | NNW 30 kph (NNW 18.4 mph) | 0.00 mm (0.00 in) | 1SM |
| | KATY 251153Z AUTO 34016KT 1SM -SN BR VV009 M10/M11 A2947 RMK AO2 SLP016 P0000 60003 70005 T11001111 11100 21150 56049 TSNO |
| 05:09 CST |  Obscured Light Snow | -11°C / 12°F | -12°C / 10°F | 92% | 999 mb (29.5 in) | NNW 30 kph (NNW 18.4 mph) | 0.00 mm (0.00 in) | 3/4SM |
| | KATY 251109Z AUTO 34016KT 3/4SM -SN BR VV009 M11/M12 A2951 RMK AO2 P0000 |
| 04:53 CST |  Obscured Light Snow | -11°C / 12°F | -13°C / 9°F | 85% | 1000 mb (29.53 in) | NNW 30 kph (NNW 18.4 mph) | 0.25 mm (0.01 in) | 1SM |
| | KATY 251053Z AUTO 34016KT 1SM -SN BR VV011 M11/M13 A2952 RMK AO2 SLP033 P0001 T11111128 |
| 04:13 CST |  Obscured Light Snow | -12°C / 10°F | -14°C / 7°F | 85% | 1001 mb (29.56 in) | NNW 28 kph (NNW 17.3 mph) | 0.00 mm (0.00 in) | 1SM |
| | KATY 251013Z AUTO 34015KT 1SM -SN BR VV011 M12/M14 A2955 RMK AO2 P0000 |
| 04:06 CST |  Obscured Light Snow | -12°C / 10°F | -14°C / 7°F | 85% | 1001 mb (29.56 in) | NNW 28 kph (NNW 17.3 mph) | 0.00 mm (0.00 in) | 3/4SM |
| | KATY 251006Z AUTO 34015KT 3/4SM -SN BR VV010 M12/M14 A2956 RMK AO2 P0000 |
| 03:53 CST |  Obscured Light Snow | -13°C / 9°F | -14°C / 7°F | 92% | 1001 mb (29.56 in) | NNW 30 kph (NNW 18.4 mph) | 0.25 mm (0.01 in) | 3/4SM |
| | KATY 250953Z AUTO 34016KT 3/4SM -SN BR VV009 M13/M14 A2957 RMK AO2 PRESFR SLP051 P0001 T11281144 |
| 03:48 CST |  Obscured Light Snow | -13°C / 9°F | -14°C / 7°F | 92% | 1002 mb (29.59 in) | NNW 28 kph (NNW 17.3 mph) | 0.25 mm (0.01 in) | 3/4SM |
| | KATY 250948Z AUTO 34015KT 3/4SM -SN BR VV009 M13/M14 A2958 RMK AO2 P0001 |
| 03:37 CST |  Obscured Light Snow | -13°C / 9°F | -15°C / 5°F | 85% | 1002 mb (29.59 in) | NNW 30 kph (NNW 18.4 mph) | 0.25 mm (0.01 in) | 1SM |
| | KATY 250937Z AUTO 34016KT 1SM -SN BR VV011 M13/M15 A2959 RMK AO2 P0001 |
| 03:25 CST |  Obscured Light Snow | -13°C / 9°F | -15°C / 5°F | 85% | 1002 mb (29.59 in) | NNW 30 kph (NNW 18.4 mph) | 0.00 mm (0.00 in) | 3/4SM |
| | KATY 250925Z AUTO 34016KT 3/4SM -SN BR VV012 M13/M15 A2960 RMK AO2 P0000 |
| 02:53 CST |  Obscured Light Snow | -14°C / 7°F | -16°C / 3°F | 85% | 1003 mb (29.62 in) | NNW 28 kph (NNW 17.3 mph) | 0.00 mm (0.00 in) | 1SM |
| | KATY 250853Z AUTO 34015KT 1SM -SN BR VV013 M14/M16 A2962 RMK AO2 SLP070 P0000 60001 T11391156 56041 |
| 02:15 CST |  Overcast Light Snow | -14°C / 7°F | -16°C / 3°F | 85% | 1003 mb (29.62 in) | NNW 24 kph (NNW 15 mph) | 0.00 mm (0.00 in) | 1 1/4SM |
| | KATY 250815Z AUTO 34013KT 1 1/4SM -SN BR OVC015 M14/M16 A2963 RMK AO2 P0000 |
| 01:53 CST |  Obscured Light Snow | -14°C / 7°F | -16°C / 3°F | 85% | 1004 mb (29.65 in) | NNW 30 kph (NNW 18.4 mph) | 0.25 mm (0.01 in) | 1SM |
| | KATY 250753Z AUTO 34016G23KT 1SM -SN BR VV013 M14/M16 A2964 RMK AO2 SLP074 P0001 T11441161 |
| 01:41 CST |  Obscured Light Snow | -14°C / 7°F | -16°C / 3°F | 85% | 1004 mb (29.65 in) | NNW 28 kph (NNW 17.3 mph) | 0.25 mm (0.01 in) | 1SM |
| | KATY 250741Z AUTO 34015KT 1SM -SN BR VV010 M14/M16 A2964 RMK AO2 PRESFR P0001 |
| 01:18 CST |  Obscured Light Snow | -14°C / 7°F | -16°C / 3°F | 85% | 1005 mb (29.68 in) | NNW 33 kph (NNW 20.7 mph) | 0.00 mm (0.00 in) | 3/4SM |
| | KATY 250718Z AUTO 34018KT 3/4SM -SN BR VV009 M14/M16 A2968 RMK AO2 P0000 |
| 01:03 CST |  Obscured Light Snow | -14°C / 7°F | -17°C / 1°F | 78% | 1005 mb (29.68 in) | NNW 32 kph (NNW 19.6 mph) | 0.00 mm (0.00 in) | 1SM |
| | KATY 250703Z AUTO 34017KT 1SM -SN BR VV012 M14/M17 A2969 RMK AO2 P0000 |
| 00:53 CST |  Overcast Light Snow | -14°C / 7°F | -17°C / 1°F | 78% | 1006 mb (29.71 in) | NNW 30 kph (NNW 18.4 mph) | 0.00 mm (0.00 in) | 1 1/2SM |
| | KATY 250653Z AUTO 34016G23KT 1 1/2SM -SN BR OVC014 M14/M17 A2970 RMK AO2 SLP095 P0000 T11441167 |
| 00:08 CST |  Obscured Light Snow | -15°C / 5°F | -17°C / 1°F | 85% | 1007 mb (29.74 in) | NNW 32 kph (NNW 19.6 mph) | 0.00 mm (0.00 in) | 1SM |
| | KATY 250608Z AUTO 33017KT 1SM -SN BR VV012 M15/M17 A2974 RMK AO2 P0000 |
| 00:00 CST |  Obscured Light Snow | -15°C / 5°F | -17°C / 1°F | 85% | 1007 mb (29.74 in) | NNW 30 kph (NNW 18.4 mph) | 0.00 mm (0.00 in) | 1SM |
| | KATY 250600Z AUTO 33016KT 1SM -SN BR VV009 M15/M17 A2975 RMK AO2 P0000 |