Snowpack

Observation: West Desolation Ridge

Hardesty, Wilson, Torrey, DiegelSalt Lake
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Observation photo 1

Quick report

Aspect
East
Red Flags
Recent Avalanches, Wind Loading, Cracking, Collapsing, Poor Snowpack Structure
Elevation
2774 m
Red Flags Comment
<p>Some localized, some widely propagating collapses today. Cracking in both wind pillows and into the poor structure.</p>

Snowpack

Instability Comment
<p>We remotely triggered two SS-ASr-2-O persistent slab avalanches today on steep north facing slopes at 9600' from along the top of the West Deso ridgeline. You can find them <a href="https://utahavalanchecenter.org/avalanches/35290">here</a> and <a href="https://utahavalanchecenter.org/avalanches/35292">here</a>. </p> <p> </p> <p>I've spent a fair bit of time on the north side of BCC and have found the weak Oct and Nov...and to some degree the faceted Christmas storm to be a near blend of facets and depth hoar. The crowns ranged from 1-2' deep and up to 300' wide and broke generally on fist hard facets from early December; however the slab itself (below the most recent few inches of wind slab and decomposing/fragmented storm snow) was itself a slab of 4f-1f rounding facets. Profile in avalanche obs linked above. </p> <p> </p> <p>Interesting to note that only one of four ECTs in representative (perhaps more wind drifted) terrain prior to the remotely triggered slides elicited full propagation...again a note about tests being only a tool in the toolbox and conservatively weighing the lone "unstable" result over the others; particularly knowing the structure and general conditions.</p>