| 04:30 PST |  Overcast Snow | -10°C / 14°F | -11°C / 12°F | 92% | 999 mb (29.5 in) | N 15 kph (N 9.2 mph) | 0.51 mm (0.02 in) | 1/2SM |
| | KTRK 071230Z AUTO 01008KT 1/2SM SN OVC001 M10/M11 A2949 RMK AO2 P0002 |
| 04:10 PST |  Overcast Snow | -9°C / 16°F | -11°C / 12°F | 86% | 999 mb (29.5 in) | NNE 15 kph (NNE 9.2 mph) | 0.25 mm (0.01 in) | 1/2SM |
| | KTRK 071210Z AUTO 02008KT 1/2SM SN OVC001 M09/M11 A2949 RMK AO2 P0001 |
| 03:50 PST |  Overcast Snow | -9°C / 16°F | -10°C / 14°F | 93% | 999 mb (29.5 in) | N 13 kph (N 8.1 mph) | 1.52 mm (0.06 in) | 1/2SM |
| | KTRK 071150Z AUTO 01007KT 1/2SM SN OVC001 M09/M10 A2950 RMK AO2 P0006 |
| 03:30 PST |  Overcast Heavy Snow | -8°C / 18°F | -10°C / 14°F | 86% | 999 mb (29.5 in) | N 11 kph (N 6.9 mph) | 1.02 mm (0.04 in) | |
| | KTRK 071130Z AUTO 36006KT +SN OVC001 M08/M10 A2950 RMK AO2 P0004 |
| 03:10 PST |  Overcast Heavy Snow | -8°C / 18°F | -9°C / 16°F | 93% | 999 mb (29.5 in) | N 9 kph (N 5.8 mph) | 0.25 mm (0.01 in) | |
| | KTRK 071110Z AUTO 01005KT +SN OVC001 M08/M09 A2951 RMK AO2 P0001 |
| 02:50 PST |  Overcast Heavy Snow | -8°C / 18°F | -9°C / 16°F | 93% | 999 mb (29.5 in) | NNE 9 kph (NNE 5.8 mph) | 2.54 mm (0.10 in) | |
| | KTRK 071050Z AUTO 02005KT +SN OVC001 M08/M09 A2951 RMK AO2 P0010 |
| 02:30 PST |  Overcast Heavy Snow | -8°C / 18°F | -9°C / 16°F | 93% | 999 mb (29.5 in) | Calm | 1.02 mm (0.04 in) | |
| | KTRK 071030Z AUTO 00000KT +SN OVC001 M08/M09 A2951 RMK AO2 P0004 |
| 02:10 PST |  Overcast Light Snow | -8°C / 18°F | -9°C / 16°F | 93% | 999 mb (29.5 in) | Calm | 0.25 mm (0.01 in) | 3/4SM |
| | KTRK 071010Z AUTO 00000KT 3/4SM -SN OVC001 M08/M09 A2951 RMK AO2 P0001 |
| 01:50 PST |  Overcast Heavy Snow | -8°C / 18°F | -9°C / 16°F | 93% | 999 mb (29.5 in) | Calm | 0.76 mm (0.03 in) | |
| | KTRK 070950Z AUTO 00000KT +SN BKN001 BKN006 OVC010 M08/M09 A2951 RMK AO2 P0003 |
| 01:30 PST |  Overcast Snow | -7°C / 19°F | -9°C / 16°F | 86% | 1000 mb (29.53 in) | E 9 kph (E 5.8 mph) | 0.25 mm (0.01 in) | 1/2SM |
| | KTRK 070930Z AUTO 10005KT 1/2SM SN OVC001 M07/M09 A2952 RMK AO2 P0001 |
| 01:10 PST |  Overcast Light Snow | -7°C / 19°F | -9°C / 16°F | 86% | 1000 mb (29.53 in) | ESE 7 kph (ESE 4.6 mph) | - | 1SM |
| | KTRK 070910Z AUTO 11004KT 1SM -SN OVC001 M07/M09 A2952 RMK AO2 |
| 00:50 PST |  Overcast Light Snow | -7°C / 19°F | -9°C / 16°F | 86% | 1000 mb (29.53 in) | Calm | 0.51 mm (0.02 in) | 1 1/4SM |
| | KTRK 070850Z AUTO 00000KT 1 1/4SM -SN BKN001 OVC010 M07/M09 A2952 RMK AO2 P0002 |
| 00:30 PST |  Overcast Light Snow | -7°C / 19°F | -9°C / 16°F | 86% | 1000 mb (29.53 in) | SSW 7 kph (SSW 4.6 mph) | 0.25 mm (0.01 in) | 1 1/4SM |
| | KTRK 070830Z AUTO 25004KT 1 1/4SM -SN BKN001 OVC010 M07/M09 A2952 RMK AO2 P0001 |
| 00:10 PST |  Overcast Light Snow | -7°C / 19°F | -9°C / 16°F | 86% | 1000 mb (29.53 in) | W 9 kph (W 5.8 mph) | 0.25 mm (0.01 in) | 3/4SM |
| | KTRK 070810Z AUTO 27005KT 3/4SM -SN OVC001 M07/M09 A2952 RMK AO2 P0001 |