Photos

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Southern Madison, 2022-12-04

From obs 12/3/22: "Looking east from the top of [Ernie Miller] ridge, we noted another crown on a west aspect that looked to be about 100' wide and deep." Photo: H. Darby

Southern Madison, 2022-12-04

From obs 12/3/22: "Looking toward Ernie Miller ridge, we noted an old crown in the main bowl just below the summit. It was on an E-NE aspect, 200 or more feet wide and looked to be filled in with new snow but was still visible." Photo: H.Darby

Southern Madison, 2022-12-04

From obs 12/3/22: "Toured up to Bacon Rind today and skied meadows off of the ridge. Dug a pit at 8700' on a W aspect. HS was 70cm. We got an ECTP12 45 cm up from the ground at the interface between wind packed snow and a layer of .5-1mm facets and mixed forms. That layer made up the bottom 45cm of the snowpack in that area. Dug another pit at 8800' on an E aspect. HS was 115cm. We got an ECTP 14 50cm up from the ground on that same interface as described above. The bottom 50cm of the snowpack looked to be facets and mixed forms. The upper 65cm in that area was a mixture of different layers of wind packed grains that ranged from F to 4F hardness." Photo: H. Darby

Southern Madison, 2022-12-04

From obs 12/3/22: "Toured up to Bacon Rind today and skied meadows off of the ridge. Dug a pit at 8700' on a W aspect. HS was 70cm. We got an ECTP12 45 cm up from the ground at the interface between wind packed snow and a layer of .5-1mm facets and mixed forms. That layer made up the bottom 45cm of the snowpack in that area. Dug another pit at 8800' on an E aspect. HS was 115cm. We got an ECTP 14 50cm up from the ground on that same interface as described above. The bottom 50cm of the snowpack looked to be facets and mixed forms. The upper 65cm in that area was a mixture of different layers of wind packed grains that ranged from F to 4F hardness." Photo: H. Darby

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.

Link to Avalanche Details
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

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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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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

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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