Photos

Displaying page 1 of photos 1 - 20 of 24
Northern Gallatin, 2021-11-28

Skiers in Hyalite Canyon observed a small wind slab avalanche just below the ridgeline in Divide Cirque (below cornice on the peak in the center of the photo). Photo: T. Saulnier

Bridger Range, 2021-11-28

Skiers near Bridger Bowl reported a thin snowpack with "a distinct crust at around 21 cm with a loose, semi-sugary layer of snow just above it from 21-27cm above the ground." Photo: H. Darby

Northern Madison, 2021-11-28

Skiers in Beehive Basin observed pin wheels on a south-facing slope that are consistent with this weekend's warm temperatures. Unusual for late November in Montana! Photo: Dorje

Northern Madison, 2021-11-28

Skiers in Beehive Basin observed a small slab avalanche and pin wheels on a south-facing slope. Photo: Dorje 

Northern Gallatin, 2021-11-27

Skiers on Mount Blackmore observed cracking within the freshly wind-loaded snow on a southeast-facing slope just below the ridge (11/24/21). Photo: J Schack

Link to Avalanche Details
Out of Advisory Area, 2021-11-22

This powder cloud from a large avalanche was seen on Black Mountain, up Pine Creek outside Livingston. Located outside our advisory area it is a sign of unstable snow, likely from wind-loading, that can be found throughout southwest Montana. Photo: Anon

Link to Avalanche Details
Bridger Range, 2021-11-21

Skiers found a shallow snowpack and very windy conditions today. Snow was moving and loading slopes. Photo: H. Darby

Bridger Range, 2021-11-21

From an obsevation: Skied up towards Arrowhead Bowl from Fairy Lake road. Snowpack is still very thin in the trees as you ascend towards the ridge. Strong westerly winds and exposed rocks deterred us from skiing the bowl itself. Down low we found variable conditions ranging from a few cm of graupel to a few cm of windboard and ice in places. We dug a pit at 8140 feet, 143º SE. The snowpack is 55 cm deep with a very distinct knife hard crust layer from 0-20cm above the ground, we were thinking that could be due to a rain on snow event that fell on top of the October snow. There is also a distinct knife crust 40 cm above the ground with new snow/wind blown snow on top of that. Weather today was mostly clear with a few scattered clouds and consistent winds, with very strong gusts from the west. Photo: H. Darby

Centennial Range, 2021-11-17

The snow was breaking 1 foot off the ground in the layer at the blue crystal card. Weak, sugary snow broke and propagated in the extended column test with 18 and 21 taps. We anticipate this weakness to get worse in the coming weeks. Photo: GNFAC

Centennial Range, 2021-11-17

There was almost 2 feet of snow (60 cm) at 8800' on NE aspect of Sawtelle Peak. Weak snow (facets) is forming a foot off the ground and were breaking consistently in stability tests. Photo: GNFAC

Lionhead Range, 2021-11-17

Snowcover on Lionhead ridge begins at about 7,000' in elevation on 11/16. Snowmobiling or skiing from Targhee Pass looks very thin and patchy. Photo: GNFAC

Centennial Range, 2021-11-17

Taken on 11/16, consistent snow on all aspects begins around 7,000 feet. 1.5-2 feet of snow is found above 8.500'. Photo: GNFAC

Cooke City, 2021-11-16

From e-mail 11/15/21: "east Henderson had a fresh slab avalanche- on a NE aspect around 10,000'.  It appeared to have failed on a weak layer near the ground, and I'd guess it was about 2-3' deep and 300'+ wide." Photo: B. Fredlund

Link to Avalanche Details
Bridger Range, 2021-11-12

From obs 11/11/21: "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 CT 12 on the first slab and CT 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." Photo: J. Krause

Bridger Range, 2021-11-12

Snow cover on the southern end of the Bridger Range on 11/11/21. Photo: T. Tumolo

Cooke City, 2021-11-11

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

 

Cooke City, 2021-11-11

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

Bridger Range, 2021-11-11

A natural avalanche on Saddle Peak on 11/10/21. Strong winds drifted recent snow into thick slabs near the ridge. This slide was probably one of those wind slabs breaking and/or being triggered by a cornice fall. Photo: P. Hinz

Link to Avalanche Details
Bridger Range, 2021-11-07

From e-mail 11/7/21: "...Once in airplane bowl we saw multiple large slides that ran last night, syn-storm. Most of which came down from the East face of Sac. A few 200-300’ wide and running the length of the bowl.,,, attached is a grainy cell phone pic of the slides in Airplane Bowl." -Anonymous.

Link to Avalanche Details
Bridger Range, 2021-11-06

From email 11/4/21: "...noticed two small wet loose avalanches in the east facing bowl between Pomp and Hardscrabble Peaks." Photo: H. Darby