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Winter Storm in Teton & Gros Ventre Mountains, Wyoming
Winter Storm December 18, 2025 – December 20, 2025 · Teton & Gros Ventre Mountains, Wyoming
What the National Weather Service wrote
Heavy snow fell in portions of the Tetons. The highest amount reported was 21 inches at the Phillips Bench SNOTEL site were 21 inches fell.
The wider storm
A moist Pacific trough moved into western Wyoming and brought heavy snow to the western mountains. The heaviest snow fell in Yellowstone Park where the Two Oceans Plateau SNOTEL site reported 28 inches of new snow. The Absarokas, Tetons, Wind River, Salt River, and Wyoming Ranges all reported new snow totals of over 20 inches. The heavy snow resulted in difficult travel conditions and road closures. In areas east of the Continental Divide, high wind was the main hazard. The most widespread high wind occurred in Natrona County where there were widespread wind gusts over 70 mph, with a maximum wind gust of 88 mph along Hat Six Road to the east of Casper. The Johnson County airport had a wind gust of 81 mph.
Source: NOAA Storm Events Database, event 1309300. Narratives are written by the National Weather Service forecast office that issued the report.
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