Avalanche: Turnagain

Location: Tincan

Route & General Observations

Another day of a few laps in the trees.

Avalanche Details
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Trigger UnknownRemote Trigger Unknown
Avalanche Type Soft SlabAspect West
Elevation 2100ftSlope Angleunknown
Crown Depth2ftWidth 20ft
Vertical Run 5ft  
Avalanche Details

Not sure if this was reported elsewhere,
A very small but deep avalanche released on a convex, unsupported rollover. It seemed it was used as a test slope by a skier. It looks to have released 12/7, as there was ~0.5cm of new snow on top of the weak layer. Failed 80cm deep at the interface of the recent barrage of storm snow, and the facets buried NOV 23. Could not identify any buried surface hoar.

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

Small slab released 12/7 on convex unsupported slope.

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

Broken skies moving to Overcast as the day progressed. Light snow starting in the afternoon.

Snow surface

Settled powder.


**Correction to 12/6 Observation**
Hastily misidentified a layer of buried stellar snowflakes (~45cm deep) as surface hoar, due to the shimmer when viewed from an oblique angle.
The stellars broke in a planar fashion when pulled on in quick handpit, today with moderate force, at 2200'.
This layer did not seem to be a problem as many skiers enjoyed the soft snow on small but steep terrain features.

From the small slab at 2100': Fist hard snow progressively stiffening to 1F snow overlaying 4F facets 80cm below the surface.

Photos & Video
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