Photos

From obs: "2/17 Immediately noticed signs of wind loading and wind slabs on NE-E aspects once in the basin. New cornices have formed in the last couple days along the North ridge to the summit. Cornice collapse on the summit triggered a small wind slab on an isolated slope." Photo: R. Rintala

From obs: "2/17 Immediately noticed signs of wind loading and wind slabs on NE-E aspects once in the basin. New cornices have formed in the last couple days along the North ridge to the summit. Cornice collapse on the summit triggered a small wind slab on an isolated slope." Photo: R. Rintala

From obs: "3 small storm slabs observed on steep terrain of Bridger Ridge (E aspect observed from wolverine woods) Attached is a photo of the deepest likely ~12in crown. No observed wind slab development below 8100ft. No propagating test results in pits dug Lower ramp, and wolverine woods." Photo: L. Butler

From obs" "Observed a few old avalanches today, maybe from the 2/8 storm. Although well out of the advisory area, helpful for skiers in the Red Lodge Area.

1)  Silver Falls Cr (Lake Fork), 9200', E, HS-N-R4-D1.5-O 45cm thick pencil hardness slab, HS 135. Pulled out into upper 20 degree terrain. 2-3 avalanches here, with one crown ~600' long.

2) Misery Bowl (Main Fork), 9400', ESE, HS-N-R2-D2.5-O A few avalanches here similar to above, with one significantly larger avalanche appearing to have failed on depth hoar where the bowl tips South. 2-4' crown, ran about 600' vertical."

Cracking in the new and wind-drifted snow on the Ridge of Middle Basin. These resulted in a narrow avalanche that ran quite far. 

Skiers saw three natural slides south of the throne today. All east facing. Photo: I Freeland

Skiers saw three natural slides south of the throne today. All east facing. Photo: I Freeland

Skiers saw three natural slides south of the throne today. All east facing. Photo: I Freeland

Skier in Republic Creek observed a natural (wind/storm slab) avalanche on an east aspect at ~9200ft. Photo: R. Minton

Photo: GNFAC

SS-ASc-R1-D.5-I 

310 Degrees  NW

8129ft

Photo: Tagg Cole

Storm slab avalanche between Blackmore and Elephant. Photo: Anonymous

I could visibly see some layer distinction about 8-12” deep. This is the same weakish layer we found in our column test, where we got ect16 just below robs knob. This was on a north facing aspect. Photo: I Tuttle

Buck Ridge, snowmobile triggered avalanche. Propagated in the storm slab. Photo: C Erhard

In Hayden Creek, we saw many D1-D1.5 wind slab avalanches seen on leeward slopes- east and northeast slopes at and above treeline. Photo: N. Mattes (Beartooth Powder Guides)

In Hayden Creek, we saw many D1-D1.5 wind slab avalanches seen on leeward slopes- east and northeast slopes at and above treeline. Photo: N. Mattes (Beartooth Powder Guides)

In Hayden Creek, we saw many D1-D1.5 wind slab avalanches seen on leeward slopes- east and northeast slopes at and above treeline. Photo: N. Mattes (Beartooth Powder Guides)

In Hayden Creek, we saw many D1-D1.5 wind slab avalanches seen on leeward slopes- east and northeast slopes at and above treeline. Photo: N. Mattes (Beartooth Powder Guides)

Toured up around Blackmore and s cottonwood. Found an extremely reactive windslab in the afternoon. Photo: J Alford