14-15
GNFAC Avalanche Forecast for Wed Dec 31, 2014
Snowpack and Avalanche Discussion
Bridger Range Gallatin Range Madison Range
Lionhead area near West Yellowstone Cooke City
GNFAC Avalanche Advisory for Tue Dec 30, 2014
Snowpack and Avalanche Discussion
Bridger Range Gallatin Range Madison Range
Lionhead area near West Yellowstone Cooke City
Near Silver Gate winds loaded higher elevation slopes which naturally avalanched. Skiers noted 4 or 5 fresh slab avalanches within the last 48 hrs on east though south, through westerly aspects. All about a 1 foot deep. The photo shows two of the crowns. Photo: B. Fredlund
GNFAC Avalanche Advisory for Mon Dec 29, 2014
Snowpack and Avalanche Discussion
Bridger Range
The Bridger Cloud was in full effect yesterday, depositing nearly a foot of snow in a twelve hour period. This brought the two day storm total to nearly two feet totaling 1.1" of SWE (snow water equivalent). Fortunately, this low density, cold smoke powder did not add a ton of weight/stress to the snowpack.
Forecast link: GNFAC Avalanche Advisory for Tue Dec 30, 2014
A stripe of surface hoar is clearly seen in the pit wall. It is buried 50 cm deep and is showing signs of instability in our Extended Column Tests (ECTP 12, 14 and 15). Photo: A. Fauver