| 15:10 PST |  Overcast | 0°C / 32°F | -1°C / 30°F | 93% | 1016 mb (30 in) | SW 9 kph (SW 5.8 mph) | - | 10SM |
| | KSZT 222310Z AUTO 21005KT 10SM OVC025 00/M01 A3000 RMK AO2 |
| 14:50 PST |  Overcast | 0°C / 32°F | -1°C / 30°F | 93% | 1016 mb (30 in) | SW 7 kph (SW 4.6 mph) | - | 10SM |
| | KSZT 222250Z AUTO 22004KT 10SM OVC025 00/M01 A2999 RMK AO2 |
| 14:30 PST |  Overcast | 0°C / 32°F | -1°C / 30°F | 93% | 1015 mb (29.97 in) | SW 9 kph (SW 5.8 mph) | - | 10SM |
| | KSZT 222230Z AUTO 21005KT 10SM OVC023 00/M01 A2998 RMK AO2 |
| 14:10 PST |  Overcast | 0°C / 32°F | -1°C / 30°F | 93% | 1015 mb (29.97 in) | SW 9 kph (SW 5.8 mph) | - | 10SM |
| | KSZT 222210Z AUTO 21005KT 10SM OVC023 00/M01 A2998 RMK AO2 |
| 13:50 PST |  Overcast | 0°C / 32°F | -1°C / 30°F | 93% | 1015 mb (29.97 in) | SW 7 kph (SW 4.6 mph) | - | 10SM |
| | KSZT 222150Z AUTO 21004KT 10SM OVC023 00/M01 A2998 RMK AO2 |
| 13:30 PST |  Overcast | 0°C / 32°F | -1°C / 30°F | 93% | 1015 mb (29.97 in) | SW 9 kph (SW 5.8 mph) | - | 10SM |
| | KSZT 222130Z AUTO 21005KT 10SM OVC023 00/M01 A2998 RMK AO2 |
| 13:10 PST |  Overcast | 0°C / 32°F | -1°C / 30°F | 93% | 1015 mb (29.97 in) | SW 11 kph (SW 6.9 mph) | - | 10SM |
| | KSZT 222110Z AUTO 21006KT 10SM OVC021 00/M01 A2997 RMK AO2 |
| 12:50 PST |  Overcast | 0°C / 32°F | -1°C / 30°F | 93% | 1015 mb (29.97 in) | SW 9 kph (SW 5.8 mph) | - | 10SM |
| | KSZT 222050Z AUTO 21005KT 10SM OVC023 00/M01 A2997 RMK AO2 |
| 12:30 PST |  Overcast | 0°C / 32°F | -1°C / 30°F | 93% | 1015 mb (29.97 in) | SW 7 kph (SW 4.6 mph) | - | 10SM |
| | KSZT 222030Z AUTO 21004KT 10SM OVC023 00/M01 A2997 RMK AO2 |
| 12:10 PST |  Overcast | 0°C / 32°F | 0°C / 32°F | 100% | 1015 mb (29.97 in) | SW 9 kph (SW 5.8 mph) | - | 10SM |
| | KSZT 222010Z AUTO 22005KT 10SM OVC023 00/00 A2996 RMK AO2 |
| 11:50 PST |  Overcast | 0°C / 32°F | -1°C / 30°F | 93% | 1015 mb (29.97 in) | SW 9 kph (SW 5.8 mph) | - | 10SM |
| | KSZT 221950Z AUTO 22005KT 10SM OVC021 00/M01 A2996 RMK AO2 |
| 11:30 PST |  Overcast | 1°C / 34°F | -1°C / 30°F | 87% | 1014 mb (29.94 in) | SW 9 kph (SW 5.8 mph) | - | 10SM |
| | KSZT 221930Z AUTO 21005KT 10SM OVC021 01/M01 A2995 RMK AO2 |
| 11:10 PST |  Mostly Cloudy | 1°C / 34°F | 0°C / 32°F | 93% | 1014 mb (29.94 in) | SSE 13 kph (SSE 8.1 mph) | - | 10SM |
| | KSZT 221910Z AUTO 20007KT 10SM BKN021 BKN027 01/00 A2995 RMK AO2 |
| 10:50 PST |  Partly Cloudy | 0°C / 32°F | -1°C / 30°F | 93% | 1014 mb (29.94 in) | SW 11 kph (SW 6.9 mph) | - | 10SM |
| | KSZT 221850Z AUTO 21006KT 10SM SCT025 00/M01 A2994 RMK AO2 |
| 10:30 PST |  Partly Cloudy | 1°C / 34°F | 0°C / 32°F | 93% | 1014 mb (29.94 in) | SW 13 kph (SW 8.1 mph) | - | 10SM |
| | KSZT 221830Z AUTO 21007KT 10SM SCT025 01/00 A2994 RMK AO2 |
| 10:10 PST |  Clear | 0°C / 32°F | 0°C / 32°F | 100% | 1013 mb (29.91 in) | SSE 15 kph (SSE 9.2 mph) | - | 10SM |
| | KSZT 221810Z AUTO 20008KT 10SM CLR 00/00 A2992 RMK AO2 |
| 09:50 PST |  Partly Cloudy | 0°C / 32°F | 0°C / 32°F | 100% | 1013 mb (29.91 in) | SW 7 kph (SW 4.6 mph) | - | 10SM |
| | KSZT 221750Z AUTO 22004KT 10SM SCT026 00/00 A2991 RMK AO2 |
| 09:30 PST |  Partly Cloudy | 0°C / 32°F | 0°C / 32°F | 100% | 1013 mb (29.91 in) | Calm | - | 10SM |
| | KSZT 221730Z AUTO 00000KT 10SM SCT014 SCT028 SCT032 00/00 A2991 RMK AO2 |
| 09:10 PST |  Mostly Cloudy | 0°C / 32°F | 0°C / 32°F | 100% | 1013 mb (29.91 in) | Calm | - | 10SM |
| | KSZT 221710Z AUTO 00000KT 10SM SCT014 BKN028 00/00 A2990 RMK AO2 |
| 08:50 PST |  Partly Cloudy | 0°C / 32°F | 0°C / 32°F | 100% | 1012 mb (29.88 in) | Calm | - | 10SM |
| | KSZT 221650Z AUTO 00000KT 10SM SCT026 00/00 A2989 RMK AO2 |
| 08:30 PST |  Partly Cloudy | 0°C / 32°F | 0°C / 32°F | 100% | 1012 mb (29.88 in) | SSW 6 kph (SSW 3.5 mph) | - | 10SM |
| | KSZT 221630Z AUTO 24003KT 10SM SCT008 SCT026 00/00 A2988 RMK AO2 |
| 08:10 PST |  Mostly Cloudy | 0°C / 32°F | 0°C / 32°F | 100% | 1012 mb (29.88 in) | Calm | - | 10SM |
| | KSZT 221610Z AUTO 00000KT 10SM BKN022 00/00 A2988 RMK AO2 |
| 07:50 PST |  Overcast | 0°C / 32°F | 0°C / 32°F | 100% | 1012 mb (29.88 in) | Calm | - | 10SM |
| | KSZT 221550Z AUTO 00000KT 10SM OVC024 00/00 A2987 RMK AO2 |
| 07:30 PST |  Overcast | 0°C / 32°F | 0°C / 32°F | 100% | 1011 mb (29.85 in) | SW 6 kph (SW 3.5 mph) | - | 10SM |
| | KSZT 221530Z AUTO 22003KT 10SM OVC024 00/00 A2986 RMK AO2 |
| 07:10 PST |  Overcast | 0°C / 32°F | 0°C / 32°F | 100% | 1011 mb (29.85 in) | Calm | - | 10SM |
| | KSZT 221510Z AUTO 00000KT 10SM BKN026 BKN050 OVC085 00/00 A2986 RMK AO2 |
| 06:50 PST |  Overcast | 1°C / 34°F | 0°C / 32°F | 93% | 1011 mb (29.85 in) | SSW 7 kph (SSW 4.6 mph) | - | 10SM |
| | KSZT 221450Z AUTO 24004KT 10SM SCT028 SCT055 OVC085 01/00 A2985 RMK AO2 |
| 06:30 PST |  Overcast | 1°C / 34°F | 0°C / 32°F | 93% | 1010 mb (29.83 in) | SSW 7 kph (SSW 4.6 mph) | - | 10SM |
| | KSZT 221430Z AUTO 24004KT 10SM SCT028 BKN041 OVC060 01/00 A2984 RMK AO2 |
| 06:10 PST |  Overcast | 1°C / 34°F | 0°C / 32°F | 93% | 1010 mb (29.83 in) | SSW 7 kph (SSW 4.6 mph) | - | 10SM |
| | KSZT 221410Z AUTO 24004KT 10SM OVC060 01/00 A2984 RMK AO2 |
| 05:52 PST |  Overcast | 1°C / 34°F | 0°C / 32°F | 93% | 1010 mb (29.83 in) | SSW 7 kph (SSW 4.6 mph) | - | 10SM |
| | KSZT 221352Z AUTO 24004KT 10SM SCT028 BKN060 OVC080 01/00 A2983 RMK AO2 |
| 05:30 PST |  Overcast | 1°C / 34°F | 0°C / 32°F | 93% | 1010 mb (29.83 in) | SW 7 kph (SW 4.6 mph) | - | 10SM |
| | KSZT 221330Z AUTO 23004KT 10SM OVC028 01/00 A2982 RMK AO2 |
| 05:11 PST |  Overcast | 1°C / 34°F | 0°C / 32°F | 93% | 1009 mb (29.8 in) | SW 9 kph (SW 5.8 mph) | - | 10SM |
| | KSZT 221311Z AUTO 23005KT 10SM OVC026 01/00 A2981 RMK AO2 |
| 04:50 PST |  Overcast | 1°C / 34°F | 1°C / 34°F | 100% | 1009 mb (29.8 in) | SW 6 kph (SW 3.5 mph) | - | 10SM |
| | KSZT 221250Z AUTO 22003KT 10SM OVC026 01/01 A2981 RMK AO2 |
| 04:30 PST |  Overcast Light Snow | 1°C / 34°F | 1°C / 34°F | 100% | 1009 mb (29.8 in) | SSE 6 kph (SSE 3.5 mph) | - | 7SM |
| | KSZT 221230Z AUTO 20003KT 7SM -SN BKN026 OVC035 01/01 A2980 RMK AO2 |
| 04:10 PST |  Overcast Light Snow | 1°C / 34°F | 1°C / 34°F | 100% | 1009 mb (29.8 in) | S 6 kph (S 3.5 mph) | - | 10SM |
| | KSZT 221210Z AUTO 19003KT 10SM -SN SCT035 BKN075 OVC095 01/01 A2980 RMK AO2 |
| 03:50 PST |  Overcast Light Snow | 1°C / 34°F | 1°C / 34°F | 100% | 1009 mb (29.8 in) | SW 9 kph (SW 5.8 mph) | - | 7SM |
| | KSZT 221150Z AUTO 22005KT 7SM -SN SCT020 BKN025 OVC085 01/01 A2979 RMK AO2 |
| 03:30 PST |  Overcast Light Snow | 1°C / 34°F | 1°C / 34°F | 100% | 1009 mb (29.8 in) | SSE 6 kph (SSE 3.5 mph) | - | 5SM |
| | KSZT 221130Z AUTO 20003KT 5SM -SN SCT015 OVC022 01/01 A2979 RMK AO2 |
| 03:10 PST |  Overcast Light Snow | 1°C / 34°F | 1°C / 34°F | 100% | 1008 mb (29.77 in) | S 6 kph (S 3.5 mph) | - | 3SM |
| | KSZT 221110Z AUTO 19003KT 3SM -SN SCT004 BKN017 OVC022 01/01 A2978 RMK AO2 |
| 02:50 PST |  Overcast Light Snow | 1°C / 34°F | 1°C / 34°F | 100% | 1008 mb (29.77 in) | S 6 kph (S 3.5 mph) | - | 5SM |
| | KSZT 221050Z AUTO 19003KT 5SM -SN SCT010 BKN017 OVC022 01/01 A2978 RMK AO2 |
| 02:30 PST |  Overcast Light Snow | 1°C / 34°F | 1°C / 34°F | 100% | 1008 mb (29.77 in) | S 7 kph (S 4.6 mph) | - | 7SM |
| | KSZT 221030Z AUTO 18004KT 7SM -SN OVC010 01/01 A2977 RMK AO2 |
| 02:11 PST |  Overcast Unknown Precip | 1°C / 34°F | 1°C / 34°F | 100% | 1008 mb (29.77 in) | S 9 kph (S 5.8 mph) | - | 5SM |
| | KSZT 221011Z AUTO 19005KT 5SM UP OVC010 01/01 A2976 RMK AO2 |
| 01:50 PST |  Overcast Light Snow | 1°C / 34°F | 1°C / 34°F | 100% | 1007 mb (29.74 in) | S 7 kph (S 4.6 mph) | - | 10SM |
| | KSZT 220950Z AUTO 17004KT 10SM -SN OVC010 01/01 A2975 RMK AO2 |
| 01:30 PST |  Overcast Light Snow | 1°C / 34°F | 1°C / 34°F | 100% | 1007 mb (29.74 in) | S 6 kph (S 3.5 mph) | - | 5SM |
| | KSZT 220930Z AUTO 19003KT 5SM -SN OVC008 01/01 A2974 RMK AO2 |
| 01:11 PST |  Overcast Light Snow | 1°C / 34°F | 1°C / 34°F | 100% | 1007 mb (29.74 in) | S 7 kph (S 4.6 mph) | - | 1 3/4SM |
| | KSZT 220911Z AUTO 19004KT 1 3/4SM -SN OVC008 01/01 A2974 RMK AO2 |
| 00:50 PST |  Overcast Snow | 1°C / 34°F | 1°C / 34°F | 100% | 1007 mb (29.74 in) | S 7 kph (S 4.6 mph) | - | 1 1/4SM |
| | KSZT 220850Z AUTO 19004KT 1 1/4SM SN OVC008 01/01 A2973 RMK AO2 |
| 00:30 PST |  Overcast Light Snow | 1°C / 34°F | 1°C / 34°F | 100% | 1006 mb (29.71 in) | S 7 kph (S 4.6 mph) | - | 1 1/4SM |
| | KSZT 220830Z AUTO 19004KT 1 1/4SM -SN OVC006 01/01 A2972 RMK AO2 |
| 00:11 PST |  Overcast Light Snow | 1°C / 34°F | 1°C / 34°F | 100% | 1006 mb (29.71 in) | S 9 kph (S 5.8 mph) | - | 1 1/2SM |
| | KSZT 220811Z AUTO 19005KT 1 1/2SM -SN OVC006 01/01 A2971 RMK AO2 |