A winter weather advisory is in effect until 6 pm tonight for the western mountains of Wyoming. Snow will continue through the day today, although a bit lighter than it has been, and ending around sunset. Grand Targhee Resort could see up to 2-FEET before the end of the weekend.
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS EVENING... * WHAT...Snow. Total snow accumulations of 8 to 16 inches in the mountains and 2 to 5 inches in the Jackson Valley. Some drifting snow is likely in the open areas of the valley. * WHERE...Jackson Hole and Teton and Gros Ventre Mountains. * WHEN...Until 6 PM MST Thursday.
There should then be about an 18-hour window of more settled conditions as transitory ridging builds across the area. However, the break will be short-lived as the next trough moves in on its heels and brings the next round of snow for Saturday. Snow looks to break out late Friday night, more than likely after midnight. With this next system, the heaviest snow at this point looks to fall Saturday morning, with another shot of steadier snow for Saturday night.
Expect temperatures to gradually drop, and wind to gradually increase as the weekend progresses.
The best days for powder days will be Saturday and Sunday morning. Jackson Hole will also see up to 18″ fresh snow.