GNFAC Avalanche Advisory for Thu Jan 28, 2016
Bridger Range Madison Range Gallatin Range
Lionhead area near West Yellowstone Cooke City
GNFAC Avalanche Advisory for Wed Jan 27, 2016
Bridger Range Madison Range Gallatin Range
Lionhead area near West Yellowstone Cooke City
This natural avalanche was seen in the cirque above Maid of the Mist. New snow and wind created wind slabs which broke naturally in our northern ranges. Photo: GNFAC
This natural avalanche was seen yesterday (1/26) and likely occurred overnight with the wind-loading and new snow. Photo: C. Babineau-Z
Forecast link: GNFAC Avalanche Advisory for Wed Jan 27, 2016
This natural avalanche (upper right) was likely triggered by a cornice. New snow and wind created instability. Photo: C. Babineau-Z
Forecast link: GNFAC Avalanche Advisory for Wed Jan 27, 2016
GNFAC Avalanche Advisory for Tue Jan 26, 2016
Bridger Range Northern Madison Range Northern Gallatin Range
GNFAC Avalanche Advisory for Mon Jan 25, 2016
Bridger Range Northern Madison Range
Northern Gallatin Range
Cedar Basin Avalanche Fatality
On Tuesday, January 19th, two on-duty Yellowstone Club (YC) Ski Patrollers were helping two MSU (Montana State University) graduate students collect snow science research data. They were on private land within Yellowstone Club, in an uncontrolled backcountry setting when, skiing back in-bounds to the YC ski area, one of the patrollers triggered an avalanche by jumping off a cornice onto a steep (39-42°) wind-loaded slope which released on his second turn. The slide broke 2-4 feet deep, 300 feet wide and carried him through a terrain trap of thick trees.