West Face of Fremont

Post snow pack observations - snowpits, avalanche activity, signs of instability.
splitboarder
Posts: 174
Joined: November 9th, 2010, 9:07 pm
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West Face of Fremont

Postby splitboarder » February 3rd, 2015, 12:28 pm

West face of Fremont yesterday.
Aspect 280° (~West)
Elevation 11,750ft
80cm of snow
32° slope

We did and Extended Column Test and had propagation at isolation (Very easy).
Results: EXTPV with sudden collapse 5 cm (2") from snow surface. This occurred between a weak melt-freeze layer and the new wind affected snow from last weekend.

At first glance this seems fairly unstable. But given the conditions, we felt the slope was not steep enough to actually slide at 32 degrees.... It was a sudden collapse in the test but the layer did not slide out. Our tests showed that it would take considerable energy to get the layer to slide after collapse. After much discussion, probing, and feeling, we rode the slope.

No instabilities found in the lower snowpack on this slope.

Great snow was found below treeline on ~NW through NE slopes... Still thin overall...

Warming temperatures this week. 46° F. is forecast at treeline for this Friday. Warm temperatures can create liquid water and possibly destabilize the snowpack.


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Troy Marino is a splitboarder and on the KPAC board of directors.
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raisingarizona
Posts: 172
Joined: November 28th, 2010, 8:01 am

Re: West Face of Fremont

Postby raisingarizona » February 6th, 2015, 12:12 pm

Nice pics! Good work on keeping at it as well. I have to admit, after skiing in the rain last Wednesday or what ever day that was I lost my drive.


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