21-22
Fairy Lake in the Sacajawea bowl
Dug a snow pit at 8,280ft adjacent to a chute. It was NW aspect. We found a ~35cm 1 finger windslab sitting on top of a ~25cm knife hard slab. We got ICT 12 on the first slab and ICT 15 on the deeper slab. On the ECT, we got a slight fracture at 15 taps and a full fracture at 17 (ECTP+2). This layer seemed to be on all aspects we looked at above tree line on NW faces. Bellow treeline, the snowpack was shallower and seem to lack these slabs.
Forecast link: GNFAC Avalanche Forecast for Mon Nov 15, 2021
Natural wind slabs on Scotch Bonnet
Natural on Saddle Peak
From obs. 11/10: "Fitness skinning around Bridger Bowl yesterday and noticed a fairly large, new avalanche on the east face of the North peak of Saddle. Maybe 100 feet below the ridge, about 100 wide at the crown, ran thru the rock bands but not over the cliff. Was taken back by the clean propagation." -Albert
From e-mail 11/10/21: "an east aspect around 9900'. HS 63cms. ECTV on facets at 19cms." In this snowpit the slab collapsed above the weak layer when the observer isolated the column to perform an extended column test (ECT), hence the score ECTV (ECT-very easily collapsed and propagated). Photo: B. Fredlund
Forecast link: GNFAC Avalanche Forecast for Fri Nov 12, 2021
From email 11/10: "Wind effect: significant in most upper elevation exposed locations. Westerly winds were moving a lot of snow off the high peaks all day today." Photo: B. Fredlund
Saddle Peak, Bridger Range
Fitness skinning around Bridger Bowl yesterday and noticed a fairly large, new avalanche on the east face of the North peak of Saddle. Maybe 100 feet below the ridge, about 100 wide at the crown, ran thru the rock bands but not over the cliff. Was taken back by the clean propagation.