GNFAC Avalanche Advisory for Sun Dec 20, 2015
Snowpack and Avalanche Discussion
Bridger Range Madison Rang Gallatin Range
Lionhead area near West Yellowstone Cooke City
15-16
GNFAC Avalanche Advisory for Sun Dec 20, 2015
Snowpack and Avalanche Discussion
This natural avalanche avalanche occurred in Argentina Bowl on Friday. It was likely triggered by a loose snow sluff or cornince fall. It appears to have a 3-4 foot crown which means it likely failded on facets near the ground. Photo. GNFAC
GNFAC Avalanche Forecast for Sat Dec 19, 2015
Snowpack and Avalanche Discussion
Bridger Range Madison Range Gallatin Range
Lionhead area nearWest Yellowstone Cooke City
GNFAC Avalanche Forecast for Fri Dec 18, 2015
Snowpack and Avalanche Discussion
Bridger Range Madison Range Gallatin Range
Lionhead area near West Yellowstone Cooke City
I triggered this avalanche from 75 feet away. Widespread collapsing and cracking were Red Flags that the slopes were ripe for human triggered avalanches. We descended the SE Ridge to avoid steep slopes and still managed to remotely trigger this small slide. Photo: GNFAC
As my partner and I toured up Mt. Ellis we had widespread collapsing and shooting cracks. We stayed off of steep slopes and triggered a small slide on our descent of the lower angles SE Ridge. Photo: GNFAC
Forecast link: GNFAC Avalanche Forecast for Fri Dec 18, 2015