Eric Knoff investigates an avalanche in Lionhead on a wind-loaded slope that was likely triggered when the tree behind him fell from the epic winds. The avalanche was small (1.5' deep, 75' wide, 100' vertical) and failed on a layer of facets on top of an ice crust. Photo: GNFAC
16-17
Emily Stifler-Wolfe works a double burial problem at the Beacon Park in Bozeman (Beal Park). Her daughter cheers her on!
GNFAC Avalanche Forecast for Tue Feb 21, 2017
Snowpack and Avalanche Discussion
Southern Madison Range Southern Gallatin Range Cooke City Lionhead area near West Yellowstone
A moist southwest flow has hammered the southern mountains. In the last 24 hours 1.3” of snow water equivalent (SWE) fell near West Yellowstone, Cooke City and Carrot Basin.
This large avalanche, near the parking lot of Pilot Creek, released over the weekend. This slope also avalanched during the Avalanche Warning about 9 days ago. These slides buried the bottom 40 feet of an ice climb. The parking area is located in Wyoming to the east of Cooke City. Photo: A. Mulkey
Forecast link: GNFAC Avalanche Forecast for Tue Feb 21, 2017
Skiers found a weak layer on an ice crust about a foot under the surface at Bacon Rind on Saturday. This is not a widespread issue, but it worth looking for since an ice crust would be easy to feel with a simple poke of a ski pole or swipe of your hand. Photo: H. Morrical
Forecast link: GNFAC Avalanche Forecast for Tue Feb 21, 2017
GNFAC Avalanche Advisory for Mon Feb 20, 2017
Snowpack and Avalanche Discussion
Southern Madison Range Southern Gallatin Range
Lionhead area near West Yellowstone
GNFAC Avalanche Advisory for Sun Feb 19, 2017
Snowpack and Avalanche Discussion
Southern Madison Range Southern Gallatin Range
Lionhead area near West Yellowstone
GNFAC Avalanche Forecast for Sat Feb 18, 2017
Snowpack and Avalanche Discussion
Madison Range Southern Gallatin Range Lionhead area near West Yellowstone Cooke City
A good freeze overnight will keep the snowpack locked up today on mid to low elevation slopes. This will eliminate the wet snow avalanche hazard. In upper elevation terrain, the snowpack still has lingering instabilities. In the mountains near Big Sky and West Yellowstone, a thin layer of facets buried 1.5-2’ deep still exists.