16-17
GNFAC Avalanche Advisory for Mon Jan 2, 2017
Snowpack and Avalanche Discussion
Bridger Range Madison Range Gallatin Range Cooke City
Lionhead area near West Yellowstone
Forecast link: GNFAC Avalanche Forecast for Wed Jan 4, 2017
GNFAC Avalanche Advisory for Sun Jan 1, 2017
Snowpack and Avalanche Discussion
Bridger Range Madison Range Gallatin Range Cooke City
Lionhead area near West Yellowstone
GNFAC Avalanche Advisory for Sat Dec 31, 2016
Snowpack and Avalanche Discussion
Madison Range Southern Gallatin Range
Lionhead area near West Yellowstone Cooke City
Upper elevation, north facing slopes around Cooke City have a snowpack that's 5-6 feet deep. As the snowpack gets deeper, it will becomes more difficult to impact weak layers near the ground. However, if a slide is triggered on facets near the ground, it will carry a lot of volume and likely be large and destructive. Photo GNFAC
Wind loaded slopes releasing naturally were observed in Yellowstone Park near Cooke City. Photo B. Fredlund
GNFAC Avalanche Advisory for Fri Dec 30, 2016
Snowpack and Avalanche Discussion
Madison Range Southern Gallatin Range
Lionhead area near West Yellowstone Cooke City
GNFAC Avalanche Advisory for Fri Dec 30, 2016
Snowpack and Avalanche Discussion
Madison Range Southern Gallatin Range
Lionhead area near West Yellowstone Cooke City