Photos

Displaying page 7 of photos 121 - 140 of 629
, 2020-03-25

This is a photo of a small roof avalanche near Island Park. Warming temperatures cause water to percolate through the snow which lubricates the sliding surface. Roof avalanches have injured and killed people in the past, just one more thing to worry about. Photo: M.E. 

Bridger Range, 2020-03-24

Dave Zinn digs a hand pit along the ridge to assess how the new snow is sticking to the ice crust. Photo: GNFAC

Northern Madison, 2020-03-23

"Was out today and found buried surface hoar 10-15 cms down. Some previous natural activity on this layer on steeper north aspects with very shallow soft slabs, but mostly dry loose at this point. Not much slab formation since the last ppt event. This could be a problem when more snow and wind in the next few days." Photo: T. Woodward

Link to Avalanche Details
Lionhead Range, 2020-03-23

Obs: "School bus size cornices over Easterly portions of Lionhead Ridge. It is hard to tell from the photo, but the largest cornices were about 20-25' tall. We dug a few pits on East Facing slopes between 9,000-9,500 ft with the worst result being an ECTN-21 however these Cornices are primed and ready to fall with the abundant sunshine and warming weather." Photo: JR

Northern Madison, 2020-03-23

From e-mail: "Natural wet slides... caused us to back off our plan of heading that way and ski a north, shady aspect instead. On a southern aspect. 9000ft. 1:30pm. We dug a hasty pit and observed a weak layer about 1m down. The facets were beginning to round." Photo: K. Master

Link to Avalanche Details
Northern Madison, 2020-03-21

From IG post with #gnfacobs: "I triggered a small windslab, mid slope on the north face of Wilson. It was a a pretty stubborn slab that broke above me. Cross loaded from lookers right. 6-8” deep." Photo: B Gill

Link to Avalanche Details
Northern Madison, 2020-03-21

From IG post with #gnfacobs: "I triggered a small windslab, mid slope on the north face of Wilson. It was a a pretty stubborn slab that broke above me. Cross loaded from lookers right. 6-8” deep." Photo: B Gill

Link to Avalanche Details
Out of Advisory Area, 2020-03-21

A look at the footstep that triggered a large cornice on Emigrant Peak (outside of advisory area). The cornice fall triggered a large avalanche. 3/20/2020.

Photo: Z. Miller

Link to Avalanche Details
Out of Advisory Area, 2020-03-21

Large piece of cornice in the debris of a cornice triggered avalanche on Emigrant Peak (outside of advisory area). Cornice was triggered by a skier on 3/20/2020.

Photo: Z. Miller

Link to Avalanche Details
Out of Advisory Area, 2020-03-21

Looking up the debris towards the crown of a cornice triggered avalanche on Emigrant Peak (outside of advisory area). Cornice was triggered by a skier on 3/20/2020.

Photo: G. Antonioli

Link to Avalanche Details
Out of Advisory Area, 2020-03-21

Skier triggered avalanche on Knowles Peak in the Absaroka Range (outside of advisory area). Avalanche was triggered by 3rd skier on 3/20/2020.

Photo: H. Williams

Link to Avalanche Details
Out of Advisory Area, 2020-03-21

Skier triggered avalanche on Knowles Peak in the Absaroka Range (outside of advisory area). Avalanche was triggered by 3rd skier on 3/20/2020.

Photo: L. Watson

Link to Avalanche Details
Northern Madison, 2020-03-21

Natural avalanche north of Beehive peak, next to North Twin behind the Fourth of July couloir. Looks to have broken on weak layers near the ground. May have been concern triggered. Observed 3/19/2020. Exact timing of release is unknown. Estimated 3/16/2020.

Photo: G. Dittmar

Link to Avalanche Details
Northern Madison, 2020-03-21

Natural avalanche north of Beehive peak, next to North Twin behind the Fourth of July couloir. Looks to have broken on weak layers near the ground. May have been concern triggered. Observed 3/19/2020. Exact timing of release is unknown. Estimated 3/16/2020.

Photo: G. Dittmar

Link to Avalanche Details
Northern Madison, 2020-03-18

From south of Big Sky yesterday 3/17 about 9:00, just north of Buck Ridge at 8500'. Large surface hoar on northerly aspects. Photo: Spence

Southern Madison, 2020-03-18

We dug near the top of Bacon Rind and found 155cm of snow. Our primary concern is with the upper snowpack. As it warms and wets we can expect an increase of avalanche activity on the ice crusts. Facets are still dry and soft at the bottom of the pack and I got this layer to break with an ECTP29. Photo: GNFAC

Northern Madison, 2020-03-17

Skier triggered wet, loose avalanche in Dudley Creek (R1/D1). Photo: Anonymous

Link to Avalanche Details
Northern Madison, 2020-03-17

Natural wet snow avalanche in Dudley Creek. Likely occurred on Monday, March 16th. Reported as a size R3/D3. Photo: Anonymous

Link to Avalanche Details
Northern Madison, 2020-03-17

Natural wet snow avalanche in Dudley Creek. Likely occurred on Monday March 16th. Reported as a size R3/D3. Photo: Anonymous

Link to Avalanche Details
Bridger Range, 2020-03-17

We observed 7 wet, loose snow avalanches today in the Northern Bridger Range. All avalanches were in the R1, D1-1.5 size range. They would be consequential in the steep, technical terrain where they occurred. Photo: GNFAC

Link to Avalanche Details