Avalanche: Turnagain

Location: Tincan

Route & General Observations

AAS Pro 1 Course
Tincan standard up track to 2200′. No travellers were observed above the treeline on Tincan.

Avalanche Details
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Trigger UnknownRemote Trigger0
Avalanche Type Soft SlabAspect South
Elevation 2800ftSlope Angleunknown
Crown DepthunknownWidthunknown
Vertical Rununknown  
Avalanche Details

We observed this slide running off Seattle Ridge at 1:57pm. Shortly thereafter a snowmachine was spotted on the ridge above the slide. So, we think this could have been remotely triggered.

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)?Yes
Cracking (Shooting cracks)?No
Weather & Snow Characteristics
Please provide details to help us determine the weather and snowpack during the time this observation took place.

Broken to partly cloudy skies. Wind transport at ridgetops in AM, but fairly quickly went away. Warm day with air temps on routes near freezing. Calm winds at all locations on route.

Snow surface

Melt freeze crust to 1700', then soft new snow above 1700'. Near surface faceting on crust as well as in higher elevations.


Storm snow is settling, however our layer of concern (New Year's Eve buried surface hoar) had easy test results (CT9 Q2, ECTP11, PST 45/100 End). The depth of the New Year's eve buried surface hoar ranged from 50cm to 115cm at treeline.

Photos & Video
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