Observation: Turnagain

Location: Eddies

Route & General Observations

Eddies to 2300′

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

Isolated collapses above 2000' on small wind loaded features

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

Few clouds (low, near peaks)
Light NE winds above 2000'
Temps mid-20s down low, teens up high

Snow surface

After the walk through the trees, widespread surface hoar 1-4mm (increasing size with elevation) over soft snow Ski penetration of 3-6" above 1200'; 1-3" from where you break out of the trees to 1200'
Firm ice on trail with a light dusting of snow on the trail


@ 1200': 15cm of dry, fist hard snow over 30cm of moist, 4 finger snow
@ 1500': 75cm of fist hard -> 1f snow over 5cm of moist facets
(This was the elevation where we started feeling this weaker layer in pole probes)
From 1600' - 2100': Height of snow varied from 50 - 100cm along the normal uptrack, but with the same general structure in the pit below.
2100' - 2200': Wind affect prior to Friday's few inches created 100cm+ drifts and scoured other areas to the ground

Pit at 2000', N Aspect, HS=60cm, 25 degree slope
(Slightly wind scoured location)
Surface: 3mm surface hoar
Surface to 50cm down: fist hard -> 1 finger
50-52cm down: 1 finger+ melt freeze crust
52cm - 60cm (ground) down: fist hard facets
CT2, CT11 SC and ECTP 17 down 55cm in facets
Shovel tilt test of the top 40cm produced no result (no obvious new/old snow interface)

Photos & Video
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