Photos

From obs "Widespread cracking and collapsing were observed both north and south of Cooke City. We stepped off the skin track and remotely triggered a small slope above the creek below. Took a closer look and it failed on surface hoar/facets 35 cm down. " Photo: BPG

Avalanches on Crown Butte that broke overnight 1/17 or early morning 1/18. Photo: B. Fredlund

Avalanche crown on Miller Ridge that broke overnight 1/17 or early morning 1/18. Photo: B. Fredlund

Avalanche crown on Miller Ridge that broke overnight 1/17 or early morning 1/18. Photo: B. Fredlund

Avalanche crown on Miller Ridge that broke overnight 1/17 or early morning 1/18. Photo: B. Fredlund

Widespread cracking on Henderson Mountain. Photo: GNFAC

This avalanche happened at the same time as a remotely triggered avalanche on the other side of the gully. Photo: GNFAC

From obs: "On the west side of Henderson Moutain, we transitioned to skis and began ascending a low-angle slope toward a known avalanche path. Along the way, we experienced several collapses. Halfway up the slope, Ian noted snowballs rolling down the hill and around the corner, we could see the debris that had come from the steep terrain above. We had a clear view of this slope near the snowmobiles and it had not avalanched when we began ascending. At some point from several hundred feet away, we remotely triggered the slope. The avalanche was ~150' wide, 2' deep and ran almost to the road." Photo:GNFAC

From obs: "On the west side of Henderson Moutain, we transitioned to skis and began ascending a low-angle slope toward a known avalanche path. Along the way, we experienced several collapses. Halfway up the slope, Ian noted snowballs rolling down the hill and around the corner, we could see the debris that had come from the steep terrain above. We had a clear view of this slope near the snowmobiles and it had not avalanched when we began ascending. At some point from several hundred feet away, we remotely triggered the slope. The avalanche was ~150' wide, 2' deep and ran almost to the road." Photo:GNFAC

A natural avalanche happened on the south side of Crown Butte that happened near the end of yesterday's storm. Another crown can be seen above this near the summit. Photo: GNFAC

Several natural avalanches in the Miller Creek drainage. More small avalanches could be seen out of frame further up the gully. Photo: GNFAC

A small natural avalanche just off the Lulu Pass Road in Cooke City. This likely happened early in the morning or last night as snowfall stopped. Photo: GNFAC

A very small avalanche that was triggered from 100' away while getting a snowmobile unstuck in the flats. Photo: GNFAC

A skier south of Cooke City triggered a collapse in relatively wind sheltered terrain that shot out about 100', and then circled back in a big loop! He described a, "A 3 second symphony of movement in the snow." Photo: B. Fredlund

Natural avalanches were seen south of Cooke City, and many of the crowns have been filled in by recent wind. These likely happened last week during or near the end of the storm on 01/10. Photo: B. Fredlund

Natural avalanches were seen south of Cooke City, and many of the crowns have been filled in by recent wind. These likely happened last week during or near the end of the storm on 01/10. Photo: B. Fredlund

Natural avalanches were seen south of Cooke City, and many of the crowns have been filled in by recent wind. These likely happened last week during or near the end of the storm on 01/10. Photo: B. Fredlund

Natural avalanches were seen south of Cooke City, and many of the crowns have been filled in by recent wind. These likely happened last week during or near the end of the storm on 01/10. Photo: B. Fredlund

From email 1/14: "A potential crown was observed from a distance across republic creek on the south side of the drainage." Photo: A. Kautzer

From obs: "Saw this avalanche today on the North end of Sheep from the Round Lake warming hut. Natural or possible snowmobile trigger" Reported yesterday, 01/12, likely a natural avalanche that happened near 01/10. Photo; J. Mundt