Photos

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, 2018-05-15

Wet slab avalanche in the Centennial range. Multiple days without freezing created widespread wet slides last week (5/6-5/11). Photo: @waxeman

, 2018-05-15

Wet slab avalanche in the Centennial range. Multiple days without freezing created widespread wet slides last week (5/6-5/11). Photo: @waxeman

, 2018-05-15

Wet slab avalanche in the Centennial range. Multiple days without freezing created widespread wet slides last week (5/6-5/11). Photo: @waxeman

, 2018-05-15

Wet slab avalanche in the Centennial range. Multiple days without freezing created widespread wet slides last week (5/6-5/11). Photo: @waxeman

Southern Madison, 2018-05-14

Wet slide carnage observed off of Skyline Ridge near Cabin Creek May 11/12. Many days of above freezing temperatures created widespread wet slide activity over the previous week. Photo: B. Lukens

Southern Madison, 2018-05-14

Wet slide carnage observed off of Skyline Ridge near Cabin Creek May 11/12. Many days of above freezing temperatures created widespread wet slide activity over the previous week. Photo: B. Lukens

Cooke City, 2018-05-14

Massive cornices create a few hazards as they warm and weaken under the spring heat. They become easier to trigger, can break naturally, and form dangerous, deep cracks along ridgelines. From e-mail: "The crack was up to 30' deep, and had pulled large pieces of vegetation from the ridgeline it used to be attached to." Photo: S. Reinsel

Cooke City, 2018-05-14

Massive cornices create a few hazards as they warm and weaken under the spring heat. They become easier to trigger, can break naturally, and form dangerous, deep cracks along ridgelines. From e-mail: "The crack was up to 30' deep, and had pulled large pieces of vegetation from the ridgeline it used to be attached to." Photo: S. Reinsel

Southern Madison, 2018-05-14

Many days with above freezing temperatures created widespread wet slide activity in southwest Montana the week of May 7-11. Photo: B. VandenBos

Southern Madison, 2018-05-14

Extended above freezing temperatures created widespread wet slide activity in southwest Montana the week of May 7-11. Photo: B. VandenBos

Southern Madison, 2018-05-14

Extended above freezing temperatures created widespread wet slide activity in southwest Montana the week of May 7-11. Photo: B. VandenBos

Southern Madison, 2018-05-14

Extended above freezing temperatures created widespread wet slide activity in southwest Montana the week of May 7-11. Photo: B. VandenBos

Southern Madison, 2018-05-14

Extended above freezing temperatures created widespread wet slide activity in southwest Montana the week of May 7-11. Photo: B. VandenBos

, 2018-05-14

Wet slab avalanche observed near Emigrant Peak the week of May 7-11. Photo: B. VandenBos

Northern Madison, 2018-05-14

Wet slab in the Second Yellowmule on Buck Ridge. Observed May 10. Photo: M. Christensen

Northern Madison, 2018-05-14

This wet slide was observed the weekend of May 5/6 near Summit Lake. Photo: J. Die

Cooke City, 2018-05-09

Wet slab south of Silver Gate on May 7. Photo: B. Fredlund

Cooke City, 2018-05-01

From e-mail: "Photo of a couple of recent wet slab avalanches, just north of Silver Gate (on Mineral Mtn.). On a south aspect, around 9100'. The one on looker's left ran on April 23rd I think, and the one on looker's right April 27 or 28th. That's all the slab avalanches I've observed with these warm temps. Not a ton of wet loose activity to be seen either. Snowpack is holding in there!" Photo: B. Fredlund

Bridger Range, 2018-04-29

Natural wet loose avalanches that slid during multiple days of well above freezing temperatures. Wet loose slides like this can run long distances and carry a lot of force. Multiple days with high temperatures of 50-60 F and overnight lows in the mid-30s to 40 F created a wet snowpack and wet slab and wet loose avalanches slid naturally. Photo: GNFAC

Bridger Range, 2018-04-29

This small wet slab avalanches slid during multiple days of well above freezing temperatures. Though small, it is large enough to bury a person and would carry a lot of force. Multiple days with high temperatures of 50-60 F and overnight lows in the mid-30s to 40 F created a wet snowpack, and wet slab and wet loose avalanches slid naturally. Photo: GNFAC