| 17:55 PST |  Clear | -4°C / 25°F | -9°C / 16°F | 69% | 1019 mb (30.09 in) | N 13 kph (N 8.1 mph) | - | 10SM |
| | KAAT 230155Z AUTO 01007KT 10SM CLR M04/M09 A3008 RMK AO2 PK WND 03049/0122 SLP217 T10441089 FZRANO TSNO |
| 16:55 PST |  Clear | -4°C / 25°F | -8°C / 18°F | 74% | 1018 mb (30.06 in) | N 9 kph (N 5.8 mph) | - | 10SM |
| | KAAT 230055Z AUTO 35005KT 10SM CLR M04/M08 A3005 RMK AO2 SLP207 T10391078 FZRANO TSNO |
| 15:55 PST |  Clear | -2°C / 28°F | -7°C / 19°F | 69% | 1016 mb (30 in) | N 9 kph (N 5.8 mph) | 0.00 mm (0.00 in) | 10SM |
| | KAAT 222355Z AUTO 36005KT 10SM CLR M02/M07 A3001 RMK AO2 SNB2258E14 SLP191 P0000 60002 T10221067 10000 21039 51020 FZRANO TSNO |
| 14:55 PST |  Mostly Cloudy | -2°C / 28°F | -7°C / 19°F | 69% | 1015 mb (29.97 in) | N 24 kph (N 15 mph) | 0.00 mm (0.00 in) | 9SM |
| | KAAT 222255Z AUTO 36013KT 9SM SCT018 BKN036 BKN042 M02/M07 A2998 RMK AO2 SNB2157E51 SLP177 P0000 T10171072 FZRANO TSNO |
| 14:47 PST |  Mostly Cloudy Light Snow | -2°C / 28°F | -6°C / 21°F | 74% | 1015 mb (29.97 in) | N 22 kph (N 13.8 mph) | 0.00 mm (0.00 in) | 2SM |
| | KAAT 222247Z AUTO 01012KT 2SM -SN SCT011 SCT020 BKN050 M02/M06 A2997 RMK AO2 SNB2157 P0000 FZRANO TSNO |
| 14:44 PST |  Mostly Cloudy Light Snow | -2°C / 28°F | -6°C / 21°F | 74% | 1015 mb (29.97 in) | N 11 kph (N 6.9 mph) | 0.00 mm (0.00 in) | 3/4SM |
| | KAAT 222244Z AUTO 36006G21KT 3/4SM -SN SCT013 SCT023 BKN048 M02/M06 A2997 RMK AO2 SNB2157 P0000 FZRANO TSNO |
| 14:36 PST |  Mostly Cloudy Light Snow | -2°C / 28°F | -6°C / 21°F | 74% | 1015 mb (29.97 in) | N 30 kph (N 18.4 mph) | 0.00 mm (0.00 in) | 1 3/4SM |
| | KAAT 222236Z AUTO 01016G21KT 1 3/4SM -SN FEW013 BKN018 BKN023 M02/M06 A2997 RMK AO2 SNB2157 P0000 FZRANO TSNO |
| 14:12 PST |  Overcast Light Snow | -2°C / 28°F | -6°C / 21°F | 74% | 1015 mb (29.97 in) | N 19 kph (N 11.5 mph) | 0.00 mm (0.00 in) | 5SM |
| | KAAT 222212Z AUTO 35010KT 5SM -SN SCT022 BKN037 OVC045 M02/M06 A2996 RMK AO2 SNB2157 P0000 FZRANO TSNO |
| 14:00 PST |  Mostly Cloudy Light Snow | -2°C / 28°F | -6°C / 21°F | 74% | 1014 mb (29.94 in) | N 30 kph (N 18.4 mph) | 0.00 mm (0.00 in) | 1 1/2SM |
| | KAAT 222200Z AUTO 01016G21KT 1 1/2SM -SN SCT015 BKN038 M02/M06 A2995 RMK AO2 SNB2157 P0000 FZRANO TSNO |
| 13:55 PST |  Mostly Cloudy | -2°C / 28°F | -6°C / 21°F | 74% | 1014 mb (29.94 in) | N 22 kph (N 13.8 mph) | 0.25 mm (0.01 in) | 10SM |
| | KAAT 222155Z AUTO 01012KT 10SM FEW021 BKN038 M02/M06 A2994 RMK AO2 SNB16E45 SLP165 P0001 T10171061 FZRANO TSNO |
| 13:45 PST |  Mostly Cloudy | -3°C / 27°F | -6°C / 21°F | 80% | 1014 mb (29.94 in) | N 17 kph (N 10.4 mph) | 0.25 mm (0.01 in) | 7SM |
| | KAAT 222145Z AUTO 01009KT 7SM SCT011 SCT035 BKN042 M03/M06 A2993 RMK AO2 SNB16E45 P0001 FZRANO TSNO |
| 13:38 PST |  Mostly Cloudy Light Snow | -3°C / 27°F | -5°C / 23°F | 86% | 1014 mb (29.94 in) | N 20 kph (N 12.7 mph) | 0.25 mm (0.01 in) | 3SM |
| | KAAT 222138Z AUTO 36011KT 3SM -SN BR BKN015 BKN042 M03/M05 A2993 RMK AO2 SNB16 P0001 FZRANO TSNO |
| 13:32 PST |  Overcast Light Snow | -3°C / 27°F | -5°C / 23°F | 86% | 1014 mb (29.94 in) | N 17 kph (N 10.4 mph) | 0.25 mm (0.01 in) | 1 1/4SM |
| | KAAT 222132Z AUTO 36009KT 1 1/4SM -SN BR BKN015 BKN023 OVC044 M03/M05 A2993 RMK AO2 SNB16 P0001 FZRANO TSNO |
| 13:29 PST |  Overcast Light Snow | -3°C / 27°F | -5°C / 23°F | 86% | 1014 mb (29.94 in) | N 17 kph (N 10.4 mph) | 0.25 mm (0.01 in) | 3/4SM |
| | KAAT 222129Z AUTO 36009KT 3/4SM -SN BR BKN013 BKN035 OVC044 M03/M05 A2993 RMK AO2 SNB16 P0001 FZRANO TSNO |
| 13:18 PST |  Mostly Cloudy Light Snow | -2°C / 28°F | -4°C / 25°F | 86% | 1014 mb (29.94 in) | N 28 kph (N 17.3 mph) | 0.00 mm (0.00 in) | 3/4SM |
| | KAAT 222118Z AUTO 01015G25KT 3/4SM -SN FEW015 BKN023 BKN031 M02/M04 A2993 RMK AO2 SNB16 P0000 FZRANO TSNO |
| 12:55 PST |  Clear | -1°C / 30°F | -6°C / 21°F | 69% | 1013 mb (29.91 in) | NW 28 kph (NW 17.3 mph) | 0.00 mm (0.00 in) | 10SM |
| | KAAT 222055Z AUTO 32015KT 10SM CLR M01/M06 A2991 RMK AO2 SNB1956E10 SLP151 P0000 60001 T10061061 58002 FZRANO TSNO |
| 12:07 PST |  Overcast Light Snow | -2°C / 28°F | -6°C / 21°F | 74% | 1013 mb (29.91 in) | NW 20 kph (NW 12.7 mph) | 0.00 mm (0.00 in) | 9SM |
| | KAAT 222007Z AUTO 31011KT 9SM -SN SCT025 BKN032 OVC042 M02/M06 A2991 RMK AO2 SNB1956 P0000 FZRANO TSNO |
| 11:55 PST |  Overcast | -2°C / 28°F | -5°C / 23°F | 80% | 1013 mb (29.91 in) | NW 17 kph (NW 10.4 mph) | 0.00 mm (0.00 in) | 10SM |
| | KAAT 221955Z AUTO 31009KT 10SM FEW019 BKN028 OVC041 M02/M05 A2991 RMK AO2 SNE43 SLP152 P0000 T10171050 FZRANO TSNO |
| 10:55 PST |  Overcast Light Snow | -3°C / 27°F | -4°C / 25°F | 93% | 1013 mb (29.91 in) | SSW 15 kph (SSW 9.2 mph) | 0.25 mm (0.01 in) | 7SM |
| | KAAT 221855Z AUTO 26008KT 7SM -SN FEW009 BKN022 OVC031 M03/M04 A2991 RMK AO2 SLP151 P0001 T10281044 FZRANO TSNO |
| 10:50 PST |  Overcast Light Snow | -3°C / 27°F | -4°C / 25°F | 93% | 1013 mb (29.91 in) | SSW 13 kph (SSW 8.1 mph) | 0.25 mm (0.01 in) | 3SM |
| | KAAT 221850Z AUTO 26007KT 3SM -SN BR FEW009 SCT012 OVC022 M03/M04 A2991 RMK AO2 P0001 FZRANO TSNO |
| 10:41 PST |  Overcast Light Snow | -3°C / 27°F | -4°C / 25°F | 93% | 1013 mb (29.91 in) | SSW 11 kph (SSW 6.9 mph) | 0.25 mm (0.01 in) | 1 1/2SM |
| | KAAT 221841Z AUTO 25006KT 1 1/2SM -SN BR SCT009 OVC022 M03/M04 A2992 RMK AO2 P0001 FZRANO TSNO |
| 09:55 PST |  Overcast Light Snow | -4°C / 25°F | -5°C / 23°F | 93% | 1013 mb (29.91 in) | SSE 7 kph (SSE 4.6 mph) | 0.25 mm (0.01 in) | 1 3/4SM |
| | KAAT 221755Z AUTO 16004KT 1 3/4SM -SN BR BKN009 OVC017 M04/M05 A2991 RMK AO2 SNE03B38 CIG 007V013 SLP151 P0001 60001 T10391050 11033 21056 53007 FZRANO TSNO |
| 09:51 PST |  Overcast Light Snow | -4°C / 25°F | -5°C / 23°F | 93% | 1013 mb (29.91 in) | S 7 kph (S 4.6 mph) | 0.00 mm (0.00 in) | 2 1/2SM |
| | KAAT 221751Z AUTO 18004KT 2 1/2SM -SN BR BKN009 OVC017 M04/M05 A2992 RMK AO2 SNE03B38 CIG 007V013 P0000 FZRANO TSNO |
| 09:37 PST |  Overcast | -4°C / 25°F | -5°C / 23°F | 93% | 1013 mb (29.91 in) | S 6 kph (S 3.5 mph) | 0.00 mm (0.00 in) | 10SM |
| | KAAT 221737Z AUTO 17003KT 10SM FEW009 OVC017 M04/M05 A2991 RMK AO2 SNE03 P0000 FZRANO TSNO |
| 09:02 PST |  Overcast Light Snow | -4°C / 25°F | -6°C / 21°F | 86% | 1013 mb (29.91 in) | SSW 9 kph (SSW 5.8 mph) | 0.00 mm (0.00 in) | 7SM |
| | KAAT 221702Z AUTO 24005KT 7SM -SN BKN022 BKN027 OVC041 M04/M06 A2990 RMK AO2 P0000 FZRANO TSNO |
| 08:55 PST |  Overcast Light Snow | -4°C / 25°F | -6°C / 21°F | 86% | 1013 mb (29.91 in) | SSW 9 kph (SSW 5.8 mph) | 0.00 mm (0.00 in) | 2 1/2SM |
| | KAAT 221655Z AUTO 24005KT 2 1/2SM -SN BR BKN026 OVC040 M04/M06 A2990 RMK AO2 SLP145 P0000 T10391056 FZRANO TSNO |
| 08:34 PST |  Overcast Light Snow | -4°C / 25°F | -6°C / 21°F | 86% | 1013 mb (29.91 in) | Calm | 0.00 mm (0.00 in) | 2 1/2SM |
| | KAAT 221634Z AUTO 00000KT 2 1/2SM -SN BR FEW020 BKN038 OVC046 M04/M06 A2990 RMK AO2 P0000 FZRANO TSNO |
| 08:30 PST |  Overcast Light Snow | -4°C / 25°F | -6°C / 21°F | 86% | 1013 mb (29.91 in) | ESE 6 kph (ESE 3.5 mph) | 0.00 mm (0.00 in) | 3SM |
| | KAAT 221630Z AUTO 11003KT 3SM -SN BR FEW020 BKN028 OVC046 M04/M06 A2990 RMK AO2 P0000 FZRANO TSNO |
| 07:55 PST |  Overcast Light Snow | -4°C / 25°F | -7°C / 19°F | 80% | 1013 mb (29.91 in) | Calm | 0.00 mm (0.00 in) | 5SM |
| | KAAT 221555Z AUTO 00000KT 5SM -SN BR SCT026 BKN034 OVC042 M04/M07 A2990 RMK AO2 SNB30 SLP145 P0000 T10441067 FZRANO TSNO |
| 06:55 PST |  Overcast | -4°C / 25°F | -6°C / 21°F | 86% | 1012 mb (29.88 in) | SW 6 kph (SW 3.5 mph) | - | 10SM |
| | KAAT 221455Z AUTO 23003KT 10SM SCT021 SCT028 OVC036 M04/M06 A2989 RMK AO2 SLP142 T10441061 53002 FZRANO TSNO $ |
| 05:55 PST |  Overcast | -5°C / 23°F | -7°C / 19°F | 86% | 1012 mb (29.88 in) | Calm | - | 10SM |
| | KAAT 221355Z AUTO 00000KT 10SM BKN049 OVC060 M05/M07 A2988 RMK AO2 SLP138 T10501067 FZRANO TSNO |
| 04:55 PST |  Overcast | -6°C / 21°F | -7°C / 19°F | 93% | 1012 mb (29.88 in) | Calm | - | 10SM |
| | KAAT 221255Z AUTO 00000KT 10SM OVC060 M06/M07 A2987 RMK AO2 SLP137 T10561072 FZRANO TSNO |
| 04:06 PST |  Overcast | -6°C / 21°F | -7°C / 19°F | 93% | 1012 mb (29.88 in) | Calm | - | 10SM |
| | KAAT 221206Z AUTO 00000KT 10SM SCT019 OVC048 M06/M07 A2988 RMK AO2 FZRANO TSNO |
| 03:55 PST |  Overcast | -6°C / 21°F | -7°C / 19°F | 93% | 1012 mb (29.88 in) | Calm | - | 10SM |
| | KAAT 221155Z AUTO 00000KT 10SM BKN019 OVC048 M06/M07 A2988 RMK AO2 SLP136 70011 T10561072 11017 21067 50004 FZRANO TSNO |
| 03:47 PST |  Overcast | -6°C / 21°F | -7°C / 19°F | 93% | 1012 mb (29.88 in) | Calm | - | 10SM |
| | KAAT 221147Z AUTO 00000KT 10SM BKN019 OVC050 M06/M07 A2989 RMK AO2 FZRANO TSNO |
| 02:55 PST |  Mostly Cloudy | -6°C / 21°F | -8°C / 18°F | 86% | 1012 mb (29.88 in) | Calm | - | 10SM |
| | KAAT 221055Z AUTO 00000KT 10SM FEW017 BKN050 M06/M08 A2989 RMK AO2 SLP134 T10561078 FZRANO TSNO |
| 02:41 PST |  Overcast | -6°C / 21°F | -7°C / 19°F | 93% | 1012 mb (29.88 in) | Calm | - | 10SM |
| | KAAT 221041Z AUTO 00000KT 10SM SCT015 OVC050 M06/M07 A2988 RMK AO2 FZRANO TSNO |
| 02:29 PST |  Mostly Cloudy | -6°C / 21°F | -8°C / 18°F | 86% | 1012 mb (29.88 in) | NW 6 kph (NW 3.5 mph) | - | 10SM |
| | KAAT 221029Z AUTO 31003KT 10SM BKN015 BKN050 M06/M08 A2989 RMK AO2 FZRANO TSNO |
| 01:55 PST |  Partly Cloudy | -6°C / 21°F | -8°C / 18°F | 86% | 1012 mb (29.88 in) | NW 6 kph (NW 3.5 mph) | - | 10SM |
| | KAAT 220955Z AUTO 30003KT 10SM FEW017 M06/M08 A2988 RMK AO2 SLP128 T10561078 FZRANO TSNO |
| 00:55 PST |  Clear | -5°C / 23°F | -7°C / 19°F | 86% | 1012 mb (29.88 in) | NW 6 kph (NW 3.5 mph) | - | 10SM |
| | KAAT 220855Z AUTO 30003KT 10SM CLR M05/M07 A2987 RMK AO2 SLP121 T10501072 51004 FZRANO TSNO |