| 08:56 PST |  Clear | -10°C / 14°F | -16°C / 3°F | 62% | 1006 mb (29.71 in) | NE 20 kph (NE 12.7 mph) | - | 10SM |
| | KWMC 061656Z AUTO 05011KT 10SM CLR M10/M16 A2972 RMK AO2 SLP108 T11001161 $ |
| 07:56 PST |  Clear | -13°C / 9°F | -18°C / 0°F | 66% | 1007 mb (29.74 in) | NE 17 kph (NE 10.4 mph) | - | 10SM |
| | KWMC 061556Z AUTO 05009KT 10SM CLR M13/M18 A2973 RMK AO2 SLP115 T11331178 $ |
| 06:56 PST |  Clear | -15°C / 5°F | -18°C / 0°F | 78% | 1007 mb (29.74 in) | NE 19 kph (NE 11.5 mph) | - | 10SM |
| | KWMC 061456Z AUTO 05010KT 10SM CLR M15/M18 A2973 RMK AO2 SLP115 T11501183 55018 $ |
| 05:56 PST |  Clear | -14°C / 7°F | -18°C / 0°F | 72% | 1006 mb (29.71 in) | NE 20 kph (NE 12.7 mph) | - | 10SM |
| | KWMC 061356Z AUTO 05011KT 10SM CLR M14/M18 A2972 RMK AO2 SLP110 T11391178 $ |
| 04:56 PST |  Clear | -14°C / 7°F | -18°C / 0°F | 72% | 1007 mb (29.74 in) | ENE 15 kph (ENE 9.2 mph) | - | 10SM |
| | KWMC 061256Z AUTO 07008KT 10SM CLR M14/M18 A2974 RMK AO2 SLP116 T11441183 $ |
| 03:56 PST |  Clear | -17°C / 1°F | -20°C / -4°F | 78% | 1009 mb (29.8 in) | Calm | - | 10SM |
| | KWMC 061156Z AUTO 00000KT 10SM CLR M17/M20 A2979 RMK AO2 SLP132 T11721200 11128 21183 58010 $ |
| 02:56 PST |  Clear | -15°C / 5°F | -19°C / -2°F | 72% | 1009 mb (29.8 in) | ENE 11 kph (ENE 6.9 mph) | - | 10SM |
| | KWMC 061056Z AUTO 06006KT 10SM CLR M15/M19 A2981 RMK AO2 SLP133 T11501189 $ |
| 01:56 PST |  Clear | -18°C / 0°F | -21°C / -6°F | 78% | 1009 mb (29.8 in) | S 9 kph (S 5.8 mph) | - | 10SM |
| | KWMC 060956Z AUTO 19005KT 10SM CLR M18/M21 A2981 RMK AO2 SLP141 T11781206 $ |
| 00:56 PST |  Clear | -17°C / 1°F | -20°C / -4°F | 78% | 1010 mb (29.83 in) | E 7 kph (E 4.6 mph) | - | 10SM |
| | KWMC 060856Z AUTO 09004KT 10SM CLR M17/M20 A2982 RMK AO2 SLP142 T11671200 58015 $ |