Get Your Ticket to the 32nd Annual Backcountry Benefit on September 11th! Support Forecasting, Awareness, and Education

Observation Date
1/17/2013
Observer Name
Greg Gagne
Region
Salt Lake
Location Name or Route
Kessler
Weather
Sky
Clear
Weather Comments
Clear & calm. Pleasant in the shade.
Snow Characteristics
Snow Surface Conditions
Dense Loose
Faceted Loose
Snow Characteristics Comments
Settled snow from Jan 10-12 storm is 20 cms (8") with fine-grained near surface facets on top. Also noticed widespread surface hoar in drainage bottoms, though not uncommon to find surface hoar in this area of BCC. Ski pens 15 cms. No wind affect observed where we were traveling (< 10,000')
Snow Profile
Aspect
North
Elevation
8,800'
Slope Angle
Unknown
Comments

Travel today was in mid elevation northerly aspects around Kessler Peak. This area didn't receive all that much snow during Jan 10-12 (my friends who skied in this area reported 30-40 cms) and it has settled to about 20 cms (8"). In my travels in this area - as well as adjacent Mineral Fork - this season I have been finding a generally thin snowpack with weak snow throughout the pack. Today I was finding 10 cms of well-preserved New Years facets underneath the 20 cms of recent storm snow. The presence and thickness of the Jan 8 rime crust varied throughout this area, although it seems to be more consistently present on north aspects. The presence of the rime crust isn't necessarily all that important as I was consistently finding the layer of faceted snow. The rime crust just makes the faceted layer ridiculously simply to identify.

The structure of the snowpack in this area is similar to what I am finding in Millcreek: A generally thinner snowpack where the New Years facets are much more advanced than in thicker snowpack areas (such as upper LCC.)

The big difference between this drainage in mid-BCC and in Millcreek has to do with storm snow amounts. Although the structure today was almost identical to what I was finding in Millcreek, today in mid-BCC there was only 20 cms of 4F settled snow on top of the facets. No cracking or collapsing. There simply isn't enough of a load to overload the weak layer. Millcreek received two to three times the amount of snow during the storm and the avalanche occurrences from this past weekend clearly indicated the storm snow overloaded the faceted layer.

Pretty simple for this coming Holiday weekend - I would not push slope angles in areas that had thinner existing snowpacks that were overloaded during the Jan 10-12 storm.

Not likely this video will be appearing at Sundance, but it gives a general idea of the snowpack structure in areas that had thinner existing snowpacks.

Video