| 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 |