Observation: Turnagain

Location: Tincan

Route & General Observations

Tincan to 3200′

Weather & Snow Characteristics
Please provide details to help us determine the weather and snowpack during the time this observation took place.

Clear, occasional light variable winds, and cold!

Snow surface

A dusting of new snow overnight. Near treeline fragments of 5-10mm surface hoar was also on the surface - shiny! - see below.


Went out today to look at the Thanksgiving crust, seeking it out at different elevation bands while keeping the aspect/depth of the Thanksgiving crust layer - down 75-85cm in the pits - roughly the same. Probing in the vicinity of pits revealed that the crust was anywhere between 50 - 120 cm below the surface at and above treeline.

The only failure in a compression test was at the 1750' pit, where one of two regular compression tests failed in a sudden collapse with a 2cm drop of the block. No failures occurred in extended column tests, but some interesting propagating saw test results revealed that layers of facets on top of and below the upper Thanksgiving crust still have the ability to propagate if failure is initiated. See pit structure and full test results below!

Photos & Video
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