| 11:45 PST |  Overcast | 3°C / 37°F | -1°C / 30°F | 75% | 1014 mb (29.94 in) | SW 19 kph (SW 11.5 mph) | - | 10SM |
| | KTRK 271945Z 22010G17KT 10SM BKN050 OVC100 03/M01 A2995 RMK NOSPECI |
| 10:45 PST |  Mostly Cloudy | 6°C / 43°F | -7°C / 19°F | 39% | 1014 mb (29.94 in) | SSW 17 kph (SSW 10.4 mph) | - | 10SM |
| | KTRK 271845Z 24009G20KT 10SM SCT050 BKN100 06/M07 A2993 RMK NO SPECI |
| 09:45 PST |  Mostly Cloudy | 7°C / 45°F | -7°C / 19°F | 37% | 1014 mb (29.94 in) | SSE 41 kph (SSE 25.3 mph) | - | 10SM |
| | KTRK 271745Z 20022G31KT 10SM SCT050 BKN100 07/M07 A2994 RMK NO SPECI |
| 08:45 PST |  Mostly Cloudy | 5°C / 41°F | -8°C / 18°F | 39% | 1015 mb (29.97 in) | SW 17 kph (SW 10.4 mph) | - | 10SM |
| | KTRK 271645Z 21009G18KT 10SM SCT050 BKN100 05/M08 A2996 RMK NOSPECI |
| 07:55 PST |  Mostly Cloudy | 5°C / 41°F | -8°C / 18°F | 39% | 1015 mb (29.97 in) | SSE 9 kph (SSE 5.8 mph) | - | 10SM |
| | KTRK 271555Z 16005KT 10SM BKN050 BKN100 05/M08 A2997 RMK NO SPECI |
| 06:45 PST |  Mostly Cloudy | 5°C / 41°F | -9°C / 16°F | 36% | 1015 mb (29.97 in) | SSE 32 kph (SSE 19.6 mph) | - | 10SM |
| | KTRK 271445Z 15017KT 10SM BKN050 BKN100 05/M09 A2996 RMK NO SPECI FIRST 24 HOUR MAX 0139 MIN 0039 |
| 05:30 PST |  Clear | 5°C / 41°F | -8°C / 18°F | 39% | 1015 mb (29.97 in) | S 19 kph (S 11.5 mph) | - | 10SM |
| | KTRK 271330Z AUTO 17010G15KT 130V200 10SM CLR 05/M08 A2997 RMK AO2 |
| 05:10 PST |  Clear | 5°C / 41°F | -8°C / 18°F | 39% | 1015 mb (29.97 in) | S 26 kph (S 16.1 mph) | - | 10SM |
| | KTRK 271310Z AUTO 18014G21KT 10SM CLR 05/M08 A2998 RMK AO2 |
| 04:50 PST |  Clear | 6°C / 43°F | -9°C / 16°F | 34% | 1015 mb (29.97 in) | SSE 17 kph (SSE 10.4 mph) | - | 10SM |
| | KTRK 271250Z AUTO 16009G17KT 10SM CLR 06/M09 A2998 RMK AO2 |
| 04:30 PST |  Clear | 7°C / 45°F | -9°C / 16°F | 31% | 1015 mb (29.97 in) | S 28 kph (S 17.3 mph) | - | 10SM |
| | KTRK 271230Z AUTO 17015G23KT 140V210 10SM CLR 07/M09 A2998 RMK AO2 |
| 04:10 PST |  Clear | 7°C / 45°F | -9°C / 16°F | 31% | 1015 mb (29.97 in) | S 28 kph (S 17.3 mph) | - | 10SM |
| | KTRK 271210Z AUTO 17015G23KT 10SM CLR 07/M09 A2998 RMK AO2 |
| 03:50 PST |  Clear | 7°C / 45°F | -9°C / 16°F | 31% | 1016 mb (30 in) | S 22 kph (S 13.8 mph) | - | 10SM |
| | KTRK 271150Z AUTO 19012G21KT 10SM CLR 07/M09 A2999 RMK AO2 |
| 03:30 PST |  Clear | 6°C / 43°F | -9°C / 16°F | 34% | 1016 mb (30 in) | S 26 kph (S 16.1 mph) | - | 10SM |
| | KTRK 271130Z AUTO 19014G17KT 10SM CLR 06/M09 A3000 RMK AO2 |
| 03:10 PST |  Clear | 7°C / 45°F | -10°C / 14°F | 29% | 1017 mb (30.03 in) | S 24 kph (S 15 mph) | - | 10SM |
| | KTRK 271110Z AUTO 19013G19KT 10SM CLR 07/M10 A3002 RMK AO2 |
| 02:50 PST |  Clear | 7°C / 45°F | -10°C / 14°F | 29% | 1017 mb (30.03 in) | S 20 kph (S 12.7 mph) | - | 10SM |
| | KTRK 271050Z AUTO 18011G17KT 10SM CLR 07/M10 A3002 RMK AO2 |
| 02:30 PST |  Clear | 6°C / 43°F | -10°C / 14°F | 31% | 1017 mb (30.03 in) | S 20 kph (S 12.7 mph) | - | 10SM |
| | KTRK 271030Z AUTO 19011G16KT 10SM CLR 06/M10 A3004 RMK AO2 |
| 02:10 PST |  Clear | 5°C / 41°F | -9°C / 16°F | 36% | 1017 mb (30.03 in) | S 19 kph (S 11.5 mph) | - | 10SM |
| | KTRK 271010Z AUTO 18010G17KT 10SM CLR 05/M09 A3004 RMK AO2 |
| 01:50 PST |  Fair | 6°C / 43°F | -9°C / 16°F | 34% | 1017 mb (30.03 in) | S 20 kph (S 12.7 mph) | - | 10SM |
| | KTRK 270950Z AUTO 17011G17KT 10SM 06/M09 A3004 RMK AO2 |
| 01:30 PST |  Clear | 6°C / 43°F | -10°C / 14°F | 31% | 1018 mb (30.06 in) | SSE 22 kph (SSE 13.8 mph) | - | 10SM |
| | KTRK 270930Z AUTO 20012G15KT 10SM CLR 06/M10 A3005 RMK AO2 |
| 01:10 PST |  Clear | 7°C / 45°F | -10°C / 14°F | 29% | 1018 mb (30.06 in) | SSE 20 kph (SSE 12.7 mph) | - | 10SM |
| | KTRK 270910Z AUTO 20011KT 170V230 10SM CLR 07/M10 A3006 RMK AO2 |
| 00:50 PST |  Clear | 7°C / 45°F | -10°C / 14°F | 29% | 1018 mb (30.06 in) | SSE 22 kph (SSE 13.8 mph) | - | 10SM |
| | KTRK 270850Z AUTO 20012G20KT 10SM CLR 07/M10 A3007 RMK AO2 |
| 00:30 PST |  Clear | 7°C / 45°F | -9°C / 16°F | 31% | 1019 mb (30.09 in) | SSE 24 kph (SSE 15 mph) | - | 10SM |
| | KTRK 270830Z AUTO 20013G19KT 10SM CLR 07/M09 A3008 RMK AO2 |
| 00:10 PST |  Clear | 7°C / 45°F | -9°C / 16°F | 31% | 1019 mb (30.09 in) | SSE 19 kph (SSE 11.5 mph) | - | 10SM |
| | KTRK 270810Z AUTO 20010G18KT 10SM CLR 07/M09 A3009 RMK AO2 |