Photos

image of surface hoar crystals seen in the snowpit wall

We ski toured in Sheep Creek today, north of Cooke City.  Of note, a thin (4mm) rime crust was forming due to the high humidity/ quasi rain.  Remarkably the rime crust skied very well.  Photo: B. Fredlund

Digging snowpit near top of the ramp Dec 22

Image of snowpit from just south of the top of the ramp on Dec 22

Small slide in terrain trap. Looks to be old, likely from before the wind event that occurred mid last week. A snowmobile track leads into it with wind-drifted snow covering the track. Photo: L Welles

Above 9000’ winds were actively loading the snow and I got cracking and a very small slab to release on a small wind drifted roll over at 9500’ on a N aspect. Photo: E Heiman

Avalanche in Hourglass chute above Wolverine. It looked to be triggered by an intentional cornice drop, was around 12 inches deep at the crown, 100' wide and ran 850' vertical feet. It looked around three days old.

We experienced several collapses and had propagation in multiple ECTs performed.  HS varies between 85-105cm. Photo from 9940

Photo: BMG

Photo: BMG

There was some natural avalanche activity on the peak south of mt Bole. Photo: Anonymous

 We triggered a 12" soft wind slab on a NE facing slope at 9,5k'. Photo: J Gerardi

I saw a wide slab avalanche up on west Woody Ridge from town. It happened late on Wednesday or overnight during or after the strong winds and snowfall. Photo: GNFAC

Wind slab avalanche near Lulu Pass. Photo: GNFAC

Large persistant slab avalanche on Henderson. Photo: GNFAC

Persistant slab avalanche on Fisher that broke near the ground. Photo: GNFAC

Dug a pit at 7600 ft on a NE facing slope. Full propagation on isolation of the column on the layer of concern about 16 inches down in this zone. Photo: Anonymous

Photo: J Aid

D2 avalanche on east facing Mount Fox that appears to be on the SH layer, triggered by a cornice drop.

Photo: B Zavora  

NE facing, 10,000' Sheep Creek.

Photo: B Fredlund