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Observation: Turnagain

Location: Tincan

Date:
Observer:
Route & General Observations

Standard uptrack to 2500′ checking out snow depth and structure every 500′ ft. Between 1000′- 1500′ there is a lot of vegetation and not much snow coverage.

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?No
Collapsing (Whumphing)?No
Cracking (Shooting cracks)?Yes
Observer Comments

Cracking in wind loaded areas above treeline, obvious wind transport

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

Snowfall throughout the day heavier at times. (S-1 to S2) 3" new during tour
NE winds 20-30 mph gusts into the 40s
Temps: 20Fs
31F at the parking lot
37F at Ingram and raining on drive back to Girdwood

Snow surface

New snow 1-3"

Snowpack

1000': HS:10 cm. Soft snow over a thin crust with faceting melt freeze grains below
1500': HS 30 cm. Soft snow over melt freeze layer on the ground (see image)
2000': HS 35 cm. Top 5 cm slightly stiffer with light wind effect, 25 cm of soft snow over melt freeze layer on the ground (see image). CT 13 x2 on melt freeze interface.
2500': HS: 85 cm. See image (mostly right side up) Top 15 cm slightly stiffer. Down 50 cm a thin layer of F hardness snow (small facets) in between a layer of 4F snow and 1F snow (CT 24 x 2, ECTN 24). There is 20 cm thick Pencil hard melt freeze layer on the ground.
Snow depth varied at this elevation from 10 cm to 100 cm depending on wind loading. Some areas were scoured down to the melt freeze layer on the ground. Areas with most wind effect were stiffer, snow was starting to crack away from skis and hand pits were failing on isolation.

Photos & Video
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