Photos

Displaying page 8 of photos 141 - 160 of 222
Cooke City, 2018-12-15

This wind slab failed as a snowbiker rode by on the road immediately below the road cut. While this slope was not particularly dangerous, these isolated wind slabs can pose a serious threat in the wrong terrain. Photo: C. Matthees

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Cooke City, 2018-12-15

This wind slab failed as a snowbiker rode by on the road immediately below the road cut. While this slope was not particularly dangerous, this is a good indicator of heavier loading on larger slopes up high. Photo: C. Matthees

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Bridger Range, 2018-12-14

A skier north of Bridger Bowl triggered this small wind slab near the ridge. This is a good reminder that isolated instabilities still exist on wind loaded slopes. Photo: J. Zimmer 

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Southern Gallatin, 2018-12-14

A skier on Ramshorn Peak in the southern Gallatin Range got shooting cracks and observed a recent avalanche in wind loaded terrain. This is a good reminder that isolated instabilities still exist on wind loaded slopes. Photo: C. Kussmaul  

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Northern Gallatin, 2018-12-12

Skiers in Hyalite observed several wind slabs release in addition to this slab collapsing under the weight of a skier. Photo: G. Antonioli

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Lionhead Range, 2018-12-11

The Lionhead area near West Yellowstone has the shallowest and weakest snowpack in our forecast region. The bottom half of the pack consists of weak, sugary facets. This well developed weak layer produced unstable results in stability tests on any slope that had wind drifted snow. With more snow and wind in the forecast, this area will experience increasingly unstable conditions. Photo GNFAC  

Northern Gallatin, 2018-12-11

This avalanche originated from the ridgetop and ran down the east face of Mt Blackmore. Winds were loading slopes quickly. This avalanche occurred in the morning right after we arrived in the bowl. Photo: G. Antonioli

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Northern Gallatin, 2018-12-11

This avalanche released while we were skinning up the ridge. New snow and strong winds created instability under the cornice. Photo: G. Antonioli

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Northern Gallatin, 2018-12-10

Climbers in Hyalite triggered a small wind slab while hiking. From the email: "No consequences his time, but it is a great reminder of how quickly conditions can change when you're hiking. In the wrong terrain, a slide like this could be really bad." Well said. Photo: P. Dobson

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Northern Gallatin, 2018-12-10

Isolated wind slabs in Hyalite cracking under the weight of a skier. Photo: V. Ortiz

Northern Gallatin, 2018-12-10

Photo: @msubackcountryclub

Cooke City, 2018-12-09

We found 4' of stable snow on the slopes underneath Wolverine (NE facing, 8500').  Photo: GNFAC

Cooke City, 2018-12-09

This loose snow avalanche originated in the summit rocks and entrained the few inches of new snow. Photo: GNFAC

Cooke City, 2018-12-09

This small wind slab on the NE facing slopes of Scotch Bonnet likely released a week ago after the strong winds blew. Photo: GNFAC

Southern Gallatin, 2018-12-08

Surface hoar crystals growing on top of a thin, faceted snowpack in the Southern Gallatins. Photo: B. VandenBos

Bridger Range, 2018-12-08

A skier in the Northern Bridgers found variable conditions on Saturday, with wind scouring above treeline, isolated wind slabs below treeline, and widespread faceting with the recent cold and dry weather. "Skiing was highly variable, ranging from all loose facets to breakable wind slab overlying facets to hard slab/sastrugi." Photo: G. Antonioli

Northern Gallatin, 2018-12-08

Photo: S. Hennessey

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Cooke City, 2018-12-07

A skier outside of Cooke City observed this natural avalanche on a north facing slope up Sheep Creek. The slide appears to be the result of heavy wind loading. Photo:B. Fredlund 

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Southern Madison, 2018-12-05

This small wind slab was triggered by skiers descending from Imp Peak in the southern Madison Range. Although small, this slide is bull's eye information that larger slides are possible on wind loaded slopes. Photo: S. Knowles 

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Northern Gallatin, 2018-12-04

Wind loads were easy to trigger. This one was triggered on purpose up Maid of the Mist in Hyalite. Photo: A. Peterson

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