JACKSON, Wyo. — The National Weather Service in Riverton has issued a Winter Weather Advisory for the Teton and Gros Ventre Mountains from 9 p.m. on Tuesday through 6 p.m. on Wednesday. This advisory does not include the Jackson Hole Valley, but the valley will see some decent accumulations during this upcoming event.
Clouds will gradually increase as the day progresses on Tuesday with highs reaching the low 30s in the valley. Snow will arrive around midnight on Tuesday night and continue throughout the day on Wednesday, before tapering off to lighter snow showers on Wednesday night.
The heaviest snowfall rates are expected late Tuesday night and throughout Wednesday morning, which will lead to a challenging commute over Teton Pass on Wednesday morning. Gusty west/southwest winds will result in areas of blowing snow throughout the day on Wednesday as well.
Total snow amounts from Tuesday night through Wednesday night will range from 8-16 inches in the Tetons and 3-7 inches in the Jackson Hole Valley. Wednesday is looking like a good powder day on the slopes.
Colder air will be arriving on Wednesday as well with high temperatures occurring early in the day (especially up high, but even in the valley as well) and gradually falling during the afternoon.
We’ll see a break in the action on Thursday with colder temperatures, then the next storm will arrive from the northwest on Thursday night and Friday with another round of heavy snow expected. Cold air will remain entrenched across the region during this event, so this snow will be very dry and fluffy.
Friday is looking like another deep powder day at the ski resorts, while Friday morning will also be a challenging commute over Teton Pass. Stay tuned to possible closures on the pass late this week due to avalanche control.
We’ll see a drying trend this weekend with lingering snow showers possible on Saturday morning, and perhaps a few snow showers Sunday afternoon/Sunday night as well, though confidence is low.
Alan Smith, Meteorologist
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