Manto nevoso

Observation: Primrose Cirque

J. SpitzerProvo
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Quick report

Red Flags
Wind Loading, Poor Snowpack Structure
Red Flags Comment
<p>The snowpack structure where we travel was poor today. We witness many (4-6) small sluffs that came off north facing cliff bands all day. By mid-day we had a fair amount of spindrift on our route from downsloping winds that had increased. </p>

With the incoming storm I would take note on which terrain features held snow prior to this storm and which slopes where dry. The terrain feature we climbed today, I would NOT recommend climbing this with any additional snow as it is subject to high avalanche danger.

Below is a picture of the East Face of Roberts Horn. The snowy benches had 2-3ft of total snow pack.

Snowpack

Instability Comment
<p>With forecasted new snowfall and increased winds.</p>

Snowpack in lower Primrose Cirque varied greatly.  Above the brush line (8K) generally the snow surface had a 1-2" 1F wind crust on top of ~2ft of loose faceted snow grains.  The wind crust generally was not supportable enough to walk on top and we would punch into the faceted snow.