Photos
Bridger Range, 2022-12-19 From Obs: "Natural wind slab, likely triggered by cornice fall in the last day or two, on a NE aspect at 8500’. Propagated ~150’ wide and ran probably 300’. Slab thickness seemed to be 18-24” at the thickest. No sign of stepping down deeper into facets in the snowpack, although adjacent to this slide there was evidence of an older slide (previous to recent storm cycle) that failed deeper in the snowpack." Photo: C. von Avis Link to Avalanche Details |
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Northern Gallatin, 2022-12-18 From 12/17: "We observed numerous recent wind slabs that released naturally in the past 24 hours on NE and E aspects with some crowns starting to get covered up throughout the day. Judging from afar, I would estimate these crowns to be 6 inches to 1.5 feet deep." Photo: Tommy S. Link to Avalanche Details |
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Northern Madison, 2022-12-18 Obs 12/17: "Saturday afternoon on the way back into town snow was moving in the Spanish peaks. Nice light" |
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, 2022-12-18 From obs: 12/16: "I thought this would be interesting to share but while driving around Gallatin gateway today I noticed multiple small wind pockets that released in steep draws in the gateway foothills area." Photo: M. Gaffney |
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Bridger Range, 2022-12-17 Skier triggered avalanche on Saddle Peak. 12/16/22. From obs: "I would estimate 2-4’ deep, 150’ wide. ... It ran full length into the bottom of Argentina bowl and south gut with a massive powder cloud. " |
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Northern Madison, 2022-12-14 |
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Cooke City, 2022-12-12 On Dec 9, 2022 we triggered this avalanche while riding across the lower angle slope below. It broke 3-6+' deep and 300' wide. One rider was caught and carried, and luckily nobody was injured. Photo from 12/10: GNFAC Link to Avalanche Details |
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Cooke City, 2022-12-12 On Dec 9, 2022 we triggered this avalanche while riding across the lower angle slope below. It broke 3-6+' deep and 300' wide. One rider was caught and carried, and luckily nobody was injured. Photo from 12/10: GNFAC Link to Avalanche Details |
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Cooke City, 2022-12-11 On Dec 9, 2022 around 1:30pm we triggered this avalanche while riding across the lower angle slope below. It broke 3-6+' deep and 300' wide. One rider was caught and carried, and luckily nobody was injured. Photo from 12/10: GNFAC Link to Avalanche Details |
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Northern Gallatin, 2022-12-11 "Large slough or slide in Hyalite today. Taken from Lick Creek. Looks like either land of the lost or avalanche gulch" - J. Johnson |
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Bridger Range, 2022-12-10 Went on a tour today with some buddies with hopes of skiing the great one. Once up in the sac bowl, we opted to back away given the wind was howling. We skied the white worm, and saw numerous cracks shooting across the slope. I opted to ski a short and sweet N facing couloir which started out pretty firm into avalanche bowl. About halfway down, I had a wind slab release after one soft turn with the deepest portion of the slide being one foot. I was not carried as I immediately cut out of the fall line, the slide rolled for about 200 vert. My friends opted to ski the direct headwall exit and had numerous small wind slabs pull out. Some areas were stripped to rock of snow. Photo: T.S. Link to Avalanche Details |
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Bridger Range, 2022-12-10 Went on a tour today with some buddies with hopes of skiing the great one. Once up in the sac bowl, we opted to back away given the wind was howling. We skied the white worm, and saw numerous cracks shooting across the slope. I opted to ski a short and sweet N facing couloir which started out pretty firm into avalanche bowl. About halfway down, I had a wind slab release after one soft turn with the deepest portion of the slide being one foot. I was not carried as I immediately cut out of the fall line, the slide rolled for about 200 vert. My friends opted to ski the direct headwall exit and had numerous small wind slabs pull out. Some areas were stripped to rock of snow. Link to Avalanche Details |
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Northern Gallatin, 2022-12-10 Small slide from the cliff bands at about 9500’, on a NE facing slope on Blackmore - looked like it broke pretty shallow sometime after the snow yesterday. Photo: S.K. Link to Avalanche Details |
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Northern Madison, 2022-12-10 Cornice dropped in Slats and propagated slab at a weak layer of facets around 70cm height from ground. Dug a snow pit of 140cm and got etc results on the same layer ECTP26 stubborn but holds a large consequence. Photo: Z. Bailey Link to Avalanche Details |
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Northern Madison, 2022-12-10 Cornice dropped in Slats and propagated slab at a weak layer of facets around 70cm height from ground. Dug a snow pit of 140cm and got etc results on the same layer ECTP26 stubborn but holds a large consequence. Photo: Z. Bailey Link to Avalanche Details |
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Cooke City, 2022-12-09 On Dec 9, 2022 around 1:30pm we triggered this avalanche while riding across the lower angle slope below. It broke 3-6+' deep and 300' wide. One rider was caught and carried, and luckily nobody was injured. Photo: GNFAC Link to Avalanche Details |
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Cooke City, 2022-12-09 On Dec 9, 2022 around 1:30pm we triggered this avalanche while riding across the lower angle slope below. It broke 3-6+' deep and 300' wide. One rider was caught and carried, and luckily nobody was injured. Photo: GNFAC Link to Avalanche Details |
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Cooke City, 2022-12-09 On Dec 9, 2022 around 1:30pm we triggered this avalanche while riding across the lower angle slope below. It broke 3-6+' deep and 300' wide. One rider was caught and carried, and luckily nobody was injured. Photo: GNFAC Link to Avalanche Details |
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Cooke City, 2022-12-09 On Dec 9, 2022 around 1:30pm we triggered this avalanche while riding across the lower angle slope below. It broke 3-6+' deep and 300' wide. One rider was caught and carried, and luckily nobody was injured. Photo: GNFAC Link to Avalanche Details |
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Northern Gallatin, 2022-12-09 I dug a pit above Silken Falls in the gulley. I found a weak layer of facets breaking about 10" under a wind slab (ECTP15). We did not get any cracking, but the terrain is very serious and even a small slide could be deadly. We did not feel comfortable center punching up the gully. Given how much traffic the gullies are getting, I do not think it is widespread, but it's out there and could avalanche. Wind and snow this weekend may make this layer more unstable, so it's important to be careful crossing exposed terrain. Either rope up or tun around if it is suspect.
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