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Observation: Turnagain

Location: TIncan

Date:
Observer:
Route & General Observations

1030-My partner and I ascended standard skin track, conducted instability tests in alpine, and skied two laps within Common Bowl/Treeline. Loose Dry, skier triggered releases were visible from 19/20JAN snowfall within Alpine, primarily within Hippy Bowl and Common Bowls northern corniced ridge. Wind was calm to light throughout the day with the sky opening up after 3pm.

Red Flags
Red flags are simple visual clues that are a sign of potential avalanche danger. Please record any sign of red flags below.
Observer Comments

No red flags, but wind loading was very apparent on surface snow

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

Broken sky trending to pockets of blue throughout the day, with OVC skies over southern end of Turnagain/Summit.
Calm winds below 2,000ft with a consistent 5mph southern wind with gusts to 10mph above 2,500ft once exposed on Ridgeline.
S-1 for sporadic periods from 11-1pm.

Snow surface

Heavy wind-deposited snow with obvious ripples on all surfaces above 1,500ft. with heavily rimed precipitation particles from Treeline to Alpine.
Surface hoar still within the lower meadows below 1,200ft. within crevasses and tree wells.
Right-side up, recent fresh snow, 35cm below surface and very dry throughout entirety of snowpack.

Snowpack

12:45pm
Common Bowl Ridgeline Approach
3,200ft, SW Aspect, 20° Slope, Air: -18°C
HS 178cm
*See Hardness Profile Photo/Field Book)
Tests:
CT17 SP (80cm below surface on .5-1mm Facets intermixed with rounds. )
ECTX

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