Photos

We did note two small avalanches along the Carrot Basin headwall from sometime in the last two days that broke on weak snow near the ground. These areas looked to have a shallower snowpack. Photo: GNFAC

We did note two small avalanches along the Carrot Basin headwall from sometime in the last two days that broke on weak snow near the ground. These areas looked to have a shallower snowpack. Photo: GNFAC

Riders in the Centennial Mountains experienced almost constant whumphing at higher elevation and saw a couple of days old avalanche on a windl-oaded east north east facing slope. Photo: R. Gravett

A small slide was remotely triggered by the second skier catching up to the first skier. ... We skied to the debris pile after the slide stopped to take a picture and would estimate it broke 30 cm down at the base of the new snow over the last week. Photo: Anonymous

Skiers in the Main Fork of Hyalite Creek drainage spotted this crown below the upper cliffs on the Maid of the Mist. Photo: Anonymous

The Yellowstone Club Ski Patrol noted multiple large avalanches on different bowls and aspects of Cedar Mountain at approximately 9400 feet elevation. Photo: YCSP

The Yellowstone Club Ski Patrol noted multiple large avalanches on different bowls and aspects of Cedar Mountain at approximately 9400 feet elevation. Photo: YCSP

A skier intentionally triggered an avalanche in Argentina bowl below south Saddle Peak. The avalanche broke 2 feet deep and ran 1000–2000 vertical feet piling debris 20 feet deep in the run out zone and breaking trees. Photo: anonymous

A skier intentionally triggered an avalanche in Argentina bowl below south Saddle Peak. The avalanche broke 2 feet deep and ran 1000–2000 vertical feet piling debris 20 feet deep in the run out zone and breaking trees. Photo: anonymous

A skier intentionally triggered an avalanche in Argentina bowl below south Saddle Peak. The avalanche broke 2 feet deep and ran 1000–2000 vertical feet piling debris 20 feet deep in the run out zone and breaking trees. Photo: anonymous

A skier intentionally triggered an avalanche in Argentina bowl below south Saddle Peak. The avalanche broke 2 feet deep and ran 1000–2000 vertical feet piling debris 20 feet deep in the run out zone and breaking trees. Photo: anonymous

On Jan 5 we saw this ~150' wide, 1'deep storm slab in Truman Gulch. GNFAC

On Jan 5 With decent visibility we drove up Bridger canyon to Battle Ridge to look for recent avalanches. The most noteworthy was a slab 500'+ wide, 2'+ deep in Argentina Bowl (photo), 1 day old probably. Photo: GNFAC

The one thing of note was a recent avalanche on the north face of Blackmore. Visibility was poor but it was a small pocket in a steep, rocky zone that broke near the ground. Photo: H Darby

Small cornice build up on lee aspects from north winds. Photo: H Darby 

There was recent avalanche on the north face of Blackmore. Visibility was poor but it was a small pocket in a steep, rocky zone that broke near the ground. Photo: H. Darby

We experienced a remarkable number of thunderous collapses throughout the day (I lost count), one of which triggered an avalanche into Specimen Creek while we were in the flats. Photo: R Parsons

Pit 2

44.95982, -111.09903

100cm snow depth

ECTP17. Failed on faceted layer 30cm above the ground. 

sugary fist snow 20-30cm above the ground; somewhat consolidated 4F storm slab 30-60cm; powder fist snow 60-95cm

Photo: R Cocco

Toured up northwest of the bacon rind trailhead to the ridge. Did two pits, both with similar failures on the buried weak layer during ECT.

Pit 1

44.96190, -111.08941

95cm snow depth ECTN21. Failed on faceted snow that existed 23-35cm above the ground.

Photo:R Cocco