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Observations

Professional Observer:   Matt Murphy

Location:   Not reported   -   Tincan

Date:   Nov 29th, 2009

Tincan Snowpit

This pit was dug at about 3000' on the Southwest Aspect of
Tincan
Common. The entire column of about 4 feet of new storm snow
failed on the sugary facets (depth hoar) on the ground. It was
a
moderate failure of 16 (CTM16Q3 126 cm), but that entire column
feel away from the pit wall.

It seems the new storm snow is strong; so, it is holding itself
together as a whole slope. However, whenever you isolate this
storm snow into a column, it fails easily to moderatly on the
facets. If you look at this snowpack in simple terms, it is a 4
foot slab on top of a weak layer of facets.

This is not a good time for big lines. Don't take your chances
with this deep instabity which can be difficult to trigger, but
have big consequences if it does. Give the snow some time. It
should heal up real nice, but we are not there yet.


Photo 1.
Lat: 60.7857 Long: -149.1603


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Professional observers are employees of organizations specializing in avalanche forecasting, mitigation and/or education. Some examples include: CNFAIC staff, AKDOT and AKRR avalanche program employees, AAS/AAI/AIARE level 2 and above avalanche instructors.


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