Kurzbericht

Observation: Box Elder

Wilson, Slack, HardestyProvo
Auf der Karte ansehen
Beobachtungsfoto 1

Quick report

Aspect
North
Red Flags
Wind Loading, Poor Snowpack Structure
Elevation
3109 m
Slope Angle
36°
Red Flags Comment
<p>Walking up ridge on pillows and swales, could see old cracks but initiated none. No collapsing noted. In short, drifts might be getting more stubborn. Came to Box Elder specifically to check out two different slides from New Year’s Day, but didn’t see any slides more recent than those. </p>

Goal of this quick crown profile from NNW facing 10,200’ was to determine on which layer the 1/1 Avalanche slid. We were interested to find the slide cracked not in the basal facets but rather 20 cm higher. The pencil hard slab slid above 12 cm of faceting (but not loose) snow sitting on top of the Dec 17 rime/freezing rain crust. Probing the bed surface between the crown and the point where skier stepped out and triggered the slide tells a similar story, with 45-70 cm of structured snow remaining on the slope. This in contrast to most of the length of the gunshot shoot which presumably pulled out in the Christmas cycle and is now covered by an unskiably thin veneer of faceted sugar. Look-out in old paths after the next storm!

SE face shows wind damage despite low and relatively protected location.

Large ungulates rate hazard as low: Our party came from Dry Creek TH to avoid the very slope their tracks zig-zag across.