| 06:56 PST |  Clear | -12°C / 10°F | -27°C / -17°F | 28% | 1024 mb (30.24 in) | N 11 kph (N 6.9 mph) | - | 10SM |
| | KTPH 041456Z AUTO 01006KT 10SM CLR M12/M27 A3024 RMK AO2 SLP271 T11171267 53001 FZRANO |
| 05:56 PST |  Clear | -11°C / 12°F | -26°C / -15°F | 28% | 1024 mb (30.24 in) | NE 7 kph (NE 4.6 mph) | - | 10SM |
| | KTPH 041356Z AUTO 03004KT 10SM CLR M11/M26 A3023 RMK AO2 SLP271 T11061261 FZRANO |
| 04:56 PST |  Clear | -10°C / 14°F | -26°C / -15°F | 26% | 1024 mb (30.24 in) | NE 15 kph (NE 9.2 mph) | - | 10SM |
| | KTPH 041256Z AUTO 03008KT 10SM CLR M10/M26 A3023 RMK AO2 SLP265 T11001256 FZRANO |
| 03:56 PST |  Clear | -10°C / 14°F | -25°C / -13°F | 28% | 1024 mb (30.24 in) | N 7 kph (N 4.6 mph) | - | 10SM |
| | KTPH 041156Z AUTO 36004KT 10SM CLR M10/M25 A3024 RMK AO2 SLP261 T11001250 11033 21100 50000 FZRANO |
| 02:56 PST |  Clear | -8°C / 18°F | -24°C / -11°F | 27% | 1024 mb (30.24 in) | N 13 kph (N 8.1 mph) | - | 10SM |
| | KTPH 041056Z AUTO 01007KT 10SM CLR M08/M24 A3025 RMK AO2 SLP261 T10831244 FZRANO |
| 01:56 PST |  Clear | -6°C / 21°F | -24°C / -11°F | 23% | 1024 mb (30.24 in) | N 11 kph (N 6.9 mph) | - | 10SM |
| | KTPH 040956Z AUTO 35006KT 10SM CLR M06/M24 A3024 RMK AO2 SLP253 T10611239 FZRANO |
| 00:56 PST |  Clear | -7°C / 19°F | -23°C / -9°F | 27% | 1024 mb (30.24 in) | Variable 9 kph (Variable 5.8 mph) | - | 10SM |
| | KTPH 040856Z AUTO VRB05KT 10SM CLR M07/M23 A3023 RMK AO2 SLP254 T10721233 58001 FZRANO |