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Observation: Turnagain

Location: Corn Biscuit tree line

Date:
Observer:
Route & General Observations

Observations from Corn Biscuit BTL and TL terrain.

Red Flags
Red flags are simple visual clues that are a sign of potential avalanche danger. Please record any sign of red flags below.
Obvious signs of instability
Recent Avalanches?Yes
Collapsing (Whumphing)?No
Cracking (Shooting cracks)?No
Observer Comments

One potential skier remote in PMS bowl. see photo below. Several large natural's observed on south facing aspects, south of center ridge (probably from direct action cycle 1/23-1/25).

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

Winds generally calm to light and temps around -3 to -5. cirrostratus clouds in PM progressing altostratus by later afternoon.

Snow surface

Rain line 520m, very stout rain crust in BTL terrain. Ski pen 10cm at tree line with supportable crust below.

Snowpack

Both 1/21 BSH and 12/25 BSH were found in test pit locations. 1/21 BSH interface was producing mostly resistant results, PST 30/100 Arr, ECTn's moderate strength, and there were 2 sudden results (CTM SC and ECTP Moderate). 12/25 BSH interface produced only one stability test result and that was a ECTN Hard. The 1/21 interface is SH embedded within a melt freeze crust structure (unique Alaskan situation).

Photos & Video
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