Photos

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Cooke City, 2022-12-04

Photo: GNFAC

Cooke City, 2022-12-04

Observed 12/3/22. Photo: Z. Peterson

Cooke City, 2022-12-04

From IG 12/3: "...Most notable was this massive slide on fox, looks to have broke 2-6’ deep and over 1000’ wide. Couldn’t quite see the toe from our tour but it looked to have run over 1000’ vertical. Never have seen one so large on Fox…" Photo: M. Cohen

Lionhead Range, 2022-12-04

From IG 12/3: It was natural. Happened last night or this morning. It hadn't slid when we left yesterday. We were first tracks in today, and there were no tracks above or below this slide. Crown at the peak was around 6'. Average 2-3' crown. 10' debris piles at least.

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Lionhead Range, 2022-12-04

From IG 12/3: It was natural. Happened last night or this morning. It hadn't slid when we left yesterday. We were first tracks in today, and there were no tracks above or below this slide. Crown at the peak was around 6'. Average 2-3' crown. 10' debris piles at least.

Link to Avalanche Details
Cooke City, 2022-12-03

Natural avalanche on Republic Mtn. 12/2/22 Photo: Z. Peterson

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Northern Gallatin, 2022-12-03

From obs on Mt Blackmore 12/2: " we were able to easily trigger shallow, short running windslabs by knocking down small cornices." Photo: C. Kussmaul

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Lionhead Range, 2022-12-03

Lots of avalanche activity. Lots of cracking and propagation from the skis. Photo: R. Malmstrom

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Lionhead Range, 2022-12-03

Lots of avalanche activity. Lots of cracking and propagation from the skis. Photo: R. Malmstrom

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Lionhead Range, 2022-12-03

Lots of avalanche activity. Lots of cracking and propagation from the skis. Photo: R. Malmstrom

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Lionhead Range, 2022-12-03

Lots of avalanche activity. Lots of cracking and propagation from the skis. Photo: R. Malmstrom

Link to Avalanche Details
Lionhead Range, 2022-12-03

Lots of avalanche activity. Lots of cracking and propagation from the skis. Photo: R. Malmstrom

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Cooke City, 2022-12-02

Near Cooke City (12/2/22) We saw multiple large natural avalanches that broke last night or early this morning. Photo: GNFAC

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Cooke City, 2022-12-02

Near Cooke City (12/2/22) We saw multiple large natural avalanches that broke last night or early this morning. Photo: GNFAC

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Cooke City, 2022-12-02

Near Cooke City (12/2/22) We saw multiple large natural avalanches that broke last night or early this morning. Photo: GNFAC

Link to Avalanche Details
Cooke City, 2022-12-01

On Dec 1, 2022 we found 21" new snow = 1.2"SWE that fell since the morning of 11/30. We had an ECT break and propagate 6-8" below the new snow on top of a crust that formed last week. With more snow on the way we might see avalanches break on this layer. Photo: GNFAC

Southern Madison, 2022-11-30

We just installed a new Beacon Checker at the Fir Ridge Trailhead which leads into Teepee Basin and Cabin Creek. Thanks Jim Norlander for installing it! Photo: J. Norlander

Northern Gallatin, 2022-11-28

Toured up to the NE shoulder on Mt. Blackmore yesterday. Winds were strong and variable, but mostly gusting from the S-SW. A lot of snow was moving around, skin tracks were filled in very quickly, and you could actively see small cornices starting to build on the lee side of the ridge. Photo: H. Darby

Northern Gallatin, 2022-11-28

On the descent, I intentionally triggered a small wind pocket in one of the chutes in the cliffs near the trail at 8700 ft. I included a video. It was D1 and about 5 inches deep at the crown. I think just a good reminder that even in the trees, the tops of those chutes get wind loaded and can definitely slide. Photo: H. Darby

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Northern Gallatin, 2022-11-28

Saw a group of skiers trigger a small wind slab avalanche on an eastern aspect at around 8,300' in the main fork of Hyalite in "Candy Land" just south of the climb Big League Chew at 2:00pm on Saturday (11/26). Crown looked to be around 2" to 1' and 90' wide. The slide ran maybe 100'. No skiers were caught. Photo: Anon

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