Alertes en vigueurMammoth, WY

What: Heavy snow possible. Total snow accumulations between 12 and 18 inches possible with locally up to 24 inches in the western slopes of the Tetons. In northern Yellowstone Park, 6 to 10 inches of snow is possible. Winds could gust as high as 40 mph.
Where: Teton and Gros Ventre Mountains and Yellowstone National Park.
When: From this evening through Friday afternoon.
Impacts: Travel could be very difficult, including over Teton and Togwotee Passes.

Monitor the latest forecasts for updates on this situation.