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Observation: Turnagain

Location: Tincan Treeline

Date:
Observer:
Route & General Observations

10:30-Ascended standard approach track with my partner towards upper-treeline to conduct instability tests of recent snowfall. Descent took nearly as long as ascent due to waist deep, dry snowfall. Light, consistent northerly winds pursued throughout the entire day with S1-S2 precipitation with 20-25°F(M), no observed wind depositing. Pockets of blue sky appeared over Sunburst and the Valley Fog lifted around 2:00pm. Gore-Tex is a wonderful innovation.

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

Localized cracks extending up to 1m from ski tips when breaking through undisturbed snow.

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

10:30-Overcast with pockets of Blue sky appearing over Sunburst around 2pm
S1-S2 from 10:30-3:30pm from 1,000 to 2,200ft (Highpoint)
Light, Northerly, 5-10mph
Temps were 18-25° F throughout the day

Snow surface

20-25cm of fresh, dry snow from 28-29JAN.
HS 160cm @2,000 ft
HS 212 @ 2,200 ft
1mm Stellars & Plates observed on surface

Snowpack

Deep.
LOCATION: Tincan TL, 10m below Wx Stn, 2,190ft, W Aspect, 29° Slope,
WX: S2, OVC,VF 1000-2000ft., Light consistent Northerly winds from 10:30-3:30pm.
HS 212cm
Test Depth 160cm
*See Hardness Profile Photo*
LOC: NYE MF Crust with .5mm Facets above/below. 4 Lemons.
Tests:
STE, CT 13 PC 75cm below surface on .5mm Facets (Rounds), ECTX

Photos & Video
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