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Observation: Michigan City

Jessie HaffenerSalt Lake
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Quick report

Red Flags
Cracking, Collapsing, Poor Snowpack Structure

Surface snow on shaded northerlies is covered in very small surface hoar. I was also finding the surface hoar on solar aspects. Steep S and SW aspects are starting to form a slide for life crust.

Snowpack

Instability Comment
<p>As part of a Utah Mountain Adventures Level 1 travel day my student stomped on a small wind loaded test slope at 10,400' on a due W aspect of Michigan City and initiated a 25 ft shooting crack and large collapse. I dug a pit and got ECTP14 down 33 cm on F hard facets above a very thin deteriorating crust (&lt;1cm). HS=82 cm. 41 degrees. Slab was F to 1F hard. After the test we got another large collapse at the location.</p> <p>While filling in the snowpit mentioned above, my student initiated a 7' wide wind slab from her skis that released down 15 cm on the new old interface. W and WNW aspects from Michigan City to the shoulder above East Bowl Pass were wind loaded with some cornicing evident. These wind slabs are getting more stubborn to trigger with each passing day.</p>