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Observation: Garden City Canyon

Chris BensonLogan
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Foto dell’osservazione 1

Quick report

Aspect
East
Red Flags
Heavy Snowfall, Wind Loading, Poor Snowpack Structure
Elevation
2621 m

The new snow doesn't seem to be bonding well with an interface around 34 cm down. These grains are sugary and weak, and may be similar to what was reported in the Ogden zone last weekend. Regardless, the slab is very soft and resulted in ECTX.

Perhaps in areas with more wind, this slab will be much stiffer and able to propagate across terrain.

Limited view of terrain in the windzone, but anywhere in the open exposed to the wind today had lots of erosion/deposition and significant depth changes in the storm snow.

Snowpack

Instability Comment
<p>New snow and wind slab were observed throughout the morning. Hst seems to be around 35cm of somewhat dense snow. The westerly winds have build widespread drifts and fresh wind-lips in exposed terrain. Observed signifiant wind erosion on a north ridge with 1-2' of relief. Surprisingly, pit location did not have significant wind affected snow. Winds were variable today, but thinking that higher elevation exposed areas are experiencing significant wind. May have spotted a small windslab that pulled out on an east aspect around 6,000' while driving back down Logan Canyon</p> <p>Again, Hst seems to be around 35cm of somewhat dense snow. I observed some cracking under foot, but no real shooting cracks or collapsing. (only broke about 0.5 miles of trail)</p> <p>The new snow is not bonding well with an interface/layer abou 35 cm down. At first glance, the soft, shiney grains look like they could be near-surface facets. Regardless of the grain type, this very soft slab is not bonding well. Both CT and shovel tilt test produced clean and sudden fractures. </p>