Avalanche: Turnagain

Location: Goldpan

Route & General Observations

Toured up Bertha Creek towards Goldpan. Snowing heavily in the AM, before rapidly clearing and becoming mostly sunny.

Avalanche Details
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Trigger SkierAvalanche Type Dry Loose Snow
Aspect SouthElevation 3000ft
Slope Angle 37degCrown Depth 12in
Width 100ftVertical Run 100ft
Avalanche Details

Sort of walking the line between D1/R1 soft slab and a big sluff, triggered from above on a small but steep rollover.

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)?Yes
Observer Comments

The avalanche reported here was soft and unconsolidated snow. However, on a higher and more exposed ridgeline, the snow had more of a wind slab character with 20' radius shooting cracks and audible collapses.

There were also dry snow avalanches present in steep terrain over all aspects.

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

30 cm of moderate density new snow at all elevations. Intermittent light breeze.

Snow surface

New storm snow.


Moderate density (surprisingly heavy) new snow on top of surface facets on top of the strong base. We did not dig a pit or perform formal stability tests. However, the instability at the new snow interface was obvious both from observations of natural slides and switchback cuts, pole probing, etc.

Photos & Video
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