Cooke City

Today there were strong winds loading snow onto the Northeast face off of Pine Martin Ridge, just North of Ram Pasture. When we got a better view of the slope, we noticed there had been a natural wind-slab avalanche (left), possibly triggered by a cornice fall. While transitioning, we saw a small part of the same cornice break off and trigger a similar wind slab avalanche (right). 

A snowboarder intentionally triggered a wind-slab avalanche on Town Hill in Cooke City that broke 6-10” deep and approximately 30’ wide. It ran about 40 vertical feet. Photo: R. Youngbar

Collapse with shooting cracks approx 50 feet out

1 skiers boot broke through the crust layer during transitioning and sank to the waist causing collapse of about 2” according to standing skiers feeling of drop

elevation: 9940

Republic side of woody ridge

From email: "New snow:  10-15cms.

No collapsing, no cracking, no fresh avalanche activity to report.

Snowpit attached from a SE aspect at 9100'.   HS: 113.  ECTP18 @ 78."