Photos

Displaying page 5 of photos 81 - 100 of 220
Bridger Range, 2021-01-06

"I was skiing down the apron at Bridger and noticed this slide on Bradley's that appeared to be skier triggered." Photo: B. O'Donoghue

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Northern Madison, 2021-01-06
"...a small natural slide in the trees on a steep slope at 8,000 feet. The snow broke down to the sugary ground layer with the added weight of yesterday’s storm. 
 
The location is just under Buck Ridge, between Second Yellow Mule & Third Yellow Mule drainages." Photo B. Ciccotti
 
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Southern Gallatin, 2021-01-06

"...the snowpack was talkative today. Tons of energetic rolling collapses that shook snow out of the trees 50 feet away, and shot powder up around aspens in a Colorado-esque way. Shooting cracks on low-angle test slopes, and isolated small natural slides on steeper, W-facing terrain." Photo: D. Pogge

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Out of Advisory Area, 2021-01-05

In Lamar Valley:

Today in Chrystal Creek my group of 4 skiers triggered 3 cornices. 2 remotely triggered and one small one while skiing off of it. The slope below was not steep enough to slide far. ~75cm of snow where we dug our pit on a North slope at 26 degrees. One slab ~23cm off the ground didn’t cause any real problems. Another hard slab ~35cm-42cm sitting on facets broke at ECTP7, CTPV. Had more whumphs than we could count and cracks that shot 30+ meters. Snow depth varied greatly, some wind loading.

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Cooke City, 2021-01-05
We observed a few fresh natural avalanches out there today... a S, SE aspect on Mineral Mountain.  That slide looked to have occurred last night, and is estimated to be around 4-500' wide. Photo: B. Fredlund
 
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Cooke City, 2021-01-05

Natural, unwitnessed avalanche. Cooke got 6" of snow (.6" SWE) the night before. Photo: R. Knatterud

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Cooke City, 2021-01-05

Remote triggered a soft slab with a ski cut. Cut across top of slope and the slide initiated ten yards below. slide was approximately 25 feet at the crown and ran the whole length/ width of the gulley. Couldn’t see past the choke of the gulley. Thicker at the crown where snow was wind drifted 16 in~. Dug a quick pit after. HS 80 cm. Slab on top of crust and facets. No one was caught and we skinned back up and skied out our original skin track. Photo: S. Brown

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Cooke City, 2021-01-05

Remote triggered a soft slab with a ski cut. Cut across top of slope and the slide initiated ten yards below. Slide was approximately 25 feet at the crown and ran the whole length/ width of the gulley. Couldn’t see past the choke of the gulley. Thicker at the crown where snow was wind drifted 16 in~. Dug a quick pit after. HS 80 cm. Slab on top of crust and facets. No one was caught and we skinned back up and skied out our original skin track. Photo: S. Brown

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Northern Gallatin, 2021-01-05

A skier got a collapse and crack in Lick Creek. The collapse has sizeable displacement which is indicative of a very thick and unstable weak layer. Photo: W. Casper

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Bridger Range, 2021-01-05

Natural avalanche that ran during or prior to storm morning of 1/5/21. Photo: GNFAC

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Bridger Range, 2021-01-05

Natural avalanche on Saddle Peak that ran during a heavy snow storm the morning of 1/5/21. Photo: GNFAC

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Out of Advisory Area, 2021-01-05

"This morning we had volunteers who were grooming the bear creek cross-country ski trails above Jardine NE of Gardiner in the southern Absarokas outside the forecast area. They witnessed a couple of roadcut slopes above the trail that triggered as they passed by or had recently occurred. Slides were roughly 18" deep and occurred at 7,200 feet elevation."

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Out of Advisory Area, 2021-01-05

"This morning we had volunteers who were grooming the bear creek cross-country ski trails above Jardine NE of Gardiner in the southern Absarokas outside the forecast area. They witnessed a couple of roadcut slopes above the trail that triggered as they passed by or had recently occurred. Slides were roughly 18" deep and occurred at 7,200 feet elevation."

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Northern Madison, 2021-01-05

Several natural avalanches spotted from Big Sky Ski Resort on 5 January 2021. Photo: H. Claiborne

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Northern Gallatin, 2021-01-04

A backcountry skier wrote, "...observed a fairly large, cornice-triggered avalanche on an east aspect at 9600’ that looked to be several hours old. The crown was 40-100 cm deep, and it looked like it failed about 20 cm into the facets that make up the lower half of the snowpack in this region."

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Northern Gallatin, 2021-01-04

A backcountry skier wrote, "...observed a fairly large, cornice-triggered avalanche on an east aspect at 9600’ that looked to be several hours old. The crown was 40-100 cm deep, and it looked like it failed about 20 cm into the facets that make up the lower half of the snowpack in this region."

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Out of Advisory Area, 2021-01-04

From obs: "... in the Crazy Mountains. Observed heavy NE cornicing as well as complex wind transport. Lots of stripped N aspects. Conditions deteriorated throughout the day with high winds and graupel deposition. Our 100cm depth pit was on a 240º SW aspect at 8000 feet, a 20º slope angle,... We performed an ECT and received an ECTX result. We performed a isolated column test and received a CTH - 22 RP Q2, fracturing 30cm below the top on a layer of facets...." Photo: H. Darby

Northern Gallatin, 2021-01-03

From obs: "Skied Mt Blackmore this morning. Very windy up in the basin, but calm along the ridgeline. Lots of signs of wind-loading and drifting on most slopes. I felt/heard 3 collapses while ascending the trees up to the east ridge. Saw a debris pile on the N face, likely from a cornice fall in the last 24hrs." Photo: M. Lavery

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Out of Advisory Area, 2021-01-02

Skiers triggered a wind slab while ascending the north couloir on Abiathar Peak on 1/2/21. On their descent they triggered this similar sized slab. They were not caught or injured, and felt lucky to dodge a bullet. 

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Out of Advisory Area, 2021-01-02

Skiers triggered this slab while ascending the north couloir on Abiathar Peak on 1/2/21. On their descent they triggered another similar sized slab. They were not caught or injured, and felt lucky to dodge a bullet. 

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