Photos

Displaying page 4 of photos 61 - 80 of 115
Out of Advisory Area, 2019-11-10

On November 8th, skiers found weak facets and surface hoar had formed during prior cold and dry weather. Keep an eye out for these weak layers if they get buried. Photo: B. VandenBos

Out of Advisory Area, 2019-11-10

On November 8th, skiers found weak facets and surface hoar had formed during prior cold and dry weather. Keep an eye out for these weak layers if they get buried. Photo: B. VandenBos

, 2019-11-08

Snowmobile Field Session at the ASMSU Introduction to Avalanches Class. Photo: GNFAC

Southern Madison, 2019-11-07

Skiers in the Taylor Fork observed faceting, or weakening of the snow, at the base snowpack in the Taylor Fork. Photo: B. VandenBos

Southern Madison, 2019-11-07

Wind scoured down to the melt-freeze crust in the Taylor Fork. Photo: B. VandenBos

Southern Madison, 2019-11-07

Wind was working hard, digging down to, picking up, and transporting dirt in the Taylor Fork. Photo: B. VandenBos

Bridger Range, 2019-11-06

Wet loose avalanches at Bridger Bowl (observed on 11/5).

Photo: G. Antonioli

Link to Avalanche Details
Bridger Range, 2019-11-06

Wet loose avalanches at Bridger Bowl (observed on 11/5).

Photo: G. Antonioli

Link to Avalanche Details
Bridger Range, 2019-11-05

My partner and I skinned up the Middle Fork of Brackett to Ross Peak hoping to ski a few different things up there. Again, pulled the plug due to stability concerns. The snowpack was significantly thinner and weaker than what I've seen up at Bridger and older snow was moderately faceted. Encountered a few thin, natural hard slab avalanches, failing on top of a facet/ melt-layer. Photo: B. VandenBos

Northern Madison, 2019-11-05

In the upper basin and dropping into the South Fork of Spanish Creek. Cold temps had done a great job rearranging the snowpack for the worse, older snow was moderately faceted, lots of sub-angular to angular grains to be found. On upper elevation shaded slopes, where more snow from earlier in the year was preserved, the snow near the ground has been metamorphosed to depth hoar, with cupped, striated grains >5mm. Photo: B. VandenBos

Northern Gallatin, 2019-11-04

Cornices are growing larger with abundant early season snowfall. Stay far back from the edge of ridgelines and avoid slopes directly below cornices. Photo: G. Antonioli

Northern Gallatin, 2019-11-04

On Sunday (11/3) skiers noted recent avalanche activity in the basin between Divide and the Maid on an east-southeast aspect. Appears to have slid on 11/2. Photo: G. Antonioli

Link to Avalanche Details
Northern Madison, 2019-11-03

On 11/2, skiers found fresh drifts that easily cracked, and avalanched on steeper slopes. Photo: T. Chingas

Link to Avalanche Details
Northern Madison, 2019-11-03

NE aspect 10,000'. Triggered while skiing through a choke point. This one was thin but ran down slope quite a ways because the terrain was steeper. Photo: T. Chingas

Link to Avalanche Details
Northern Madison, 2019-11-03

E aspect, 9,100'. Triggered from a stomping a small cornice, which landed on a steep slope below and popped a small wind slab. Photo: T. Chingas

Link to Avalanche Details
Northern Madison, 2019-11-03

From obs. email:

Easy shovel sheer result (middle facet layer)
Ct 11 (middle facet layer)
Ect 13 with propagation (middle facet layer)
295 degrees northwest facing
8,600 feet
70cm snow depth

Photo: E. Howard

Northern Gallatin, 2019-11-02

A skier reported on 11/1, "Activity I observed was restricted to the new snow. A fair bit of loose snow....  Skiers on the E bowl of Blackmore triggered some D1 dry sluffage, running on a crust beneath the new snow." Photo: B. VandenBos

Link to Avalanche Details
Northern Gallatin, 2019-11-02

A skier reported on 11/1, "Activity I observed was restricted to the new snow. A fair bit of loose snow....  Skiers on the E bowl of Blackmore triggered some D1 dry sluffage, running on a crust beneath the new snow." Photo: B. VandenBos

Link to Avalanche Details
Northern Gallatin, 2019-11-02

A skier reported on 11/1, "I watched a small (D1) wind slab build and fail as the wind picked up near the Blackmore/Elephant saddle (happened just before 2pm). Slab couldn't have been much thicker than 15cm, broke 30-40m wide. These slabs were building rapidly,..." Photo: B. VandenBos

Link to Avalanche Details
Bridger Range, 2019-10-31

Avalanche crown north of Bridger Bowl from avalanches that ran on or before 10/30. Photo: G. Antonioli

Link to Avalanche Details