Photos

Displaying page 3 of photos 41 - 60 of 220
Northern Madison, 2021-01-10

1/9/2021. Photo: R. Guenther

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Centennial Range, 2021-01-10

From obs: "Rain crust is still very present in the snowpack. Two natural slab avalanches on north aspect of Reas Peak, one from recent storm and one from previous storm. Photo is from a snowmobile triggered avalanche from 1/9/21, you can see the party and one of the members riding the adjacent slope." Photo: C. Hericks

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Cooke City, 2021-01-10

From email:"We suspect this happened fresh today (1/9/21), we  wonder if those animal tracks coming in from the left triggered it. North facing, 2 ft crown, (I’d guess), about 9k feet, facing Goose Creek. So our friends (while ski cutting) triggered a  very similar slide on this same aspect/elevation mid afternoon today, about 1/4 mile farther west along this ridge, looked to be same depth." Photo: S. Strenge

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Cooke City, 2021-01-10

Photo: B. Fredlund

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Cooke City, 2021-01-09

A clear morning on 1/9/21 provided good opportunity for a photo of the avalanche triggered by a group of skiers on 1/8/21. Photo: B. Fredlund

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Cooke City, 2021-01-09

The slide ran 700 feet vertical and 200 feet wide over a rock band and through trees. Photo: GNFAC

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Cooke City, 2021-01-09

The debris field was estimated to be 4-500 feet wide and up to 6 feet deep. Photo: GNFAC

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Cooke City, 2021-01-09

The bed surface was a uniform 37 degree steepness. Photo: GNFAC

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Cooke City, 2021-01-09

The crown was 1.5-2' deep and broke on a layer of faceted crystals. Photo: GNFAC

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Northern Gallatin, 2021-01-09

Skiers triggered this avalanche on Flanders Mountain on 1/9/21. It was triggered out of the photo to the right on a seperate slope around the corner. It propagated over 1000' wide, and looks to be 6' deep at deepest. Photo: A. Blackmer

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Northern Gallatin, 2021-01-09

Skiers triggered this avalanche on Flanders Mountain on 1/9/21. It propagated around the corner over 1000' wide into an adjacent path.

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Northern Gallatin, 2021-01-09
Northern Gallatin, 2021-01-09

From obs: "We dug a pit and found a really weak snowpack! Regardless of the poor stability result, we proceeded to ski an East facing bowl south of Flanders Mountain knowing that the slope angle was low and only flirted with 30 degrees in some parts of the bowl.... My partner skied first, he skied practically all the way back to the skin track when the slope failed and the entire bowl released. He was pretty well out of the way of danger by the time the bowl began to move. From our perspective, the trigger happened at the bottom of the slope. The bowl was not the only slope that slid, the avalanche propagated around the ridge and released a slide on the more south-easterly facing aspect just south of the bowl. We tail-tucked and went home glad no one was caught or hurt."

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Northern Gallatin, 2021-01-09

From obs: "I went up Blackmore [1/9/21]... A pit on a south aspect at 9400’ had 100 cm, and failed at ECTP22 on large, loose facets underlying a crust about 50 cm down. A pit on a north aspect at 9400’ had 105 cm and failed at ECTP20 on the same layer, although the crust was close to nonexistent on this aspect. The snowpack overall was weaker and less consolidated here. A pit on an east aspect at 9400’ had 135 cm, and failed at ECTP25 on the same layer as the other two. I experienced a couple collapses while in shallower, treed areas on north and south aspects today. I did not observe any recent natural activity, but do not trust the snow very much."

Cooke City, 2021-01-09

From observation (1/8/21): "Skier triggered slide from someone outside our group lower in Silver Creek 9350’ S facing 18-24” deep 60-70’ wide. Ran 500’ skier was able to regain skis and off slab 100’ below initiation."

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Cooke City, 2021-01-09

Natural avalanche NW of Cooke City on an E, SE aspect around 9,700'.

Photo: B. Fredlund

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Northern Madison, 2021-01-08

We saw these slides on Jan 8 2021, and they look to be one or two days old and broke naturally after recent new snow. Photo: GNFAC

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Northern Madison, 2021-01-08

We saw these natural avalanches on January 8, 2021, they are likely a couple days old. Photo: GNFAC

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Northern Madison, 2021-01-08

We saw this avalanche in the third Yellow Mule on Buck Ridge on Jan 8 2021. It likely broke a couple days prior. Photo: GNFAC

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Northern Madison, 2021-01-08

On 1/8/21 we saw this large snowmobile triggered avalanches that occurred on January 7, 2021. It broke on weak, sugary snow below hard wind drifted snow and recent new snow. Photo: GNFAC

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