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Avalanche: Turnagain

Location: South face Sunburst

Date:
Observer:
Route & General Observations

Traditional west ridge line approach.

Avalanche Details
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Trigger SkierAvalanche Type Soft Slab
Aspect SouthElevation 3000ft
Slope AngleunknownCrown Depth 7in
Width 70ftVertical Run 1000ft
Avalanche Details

From what I was told later, this avalanche was skier triggered. Propagated just below the ridge line and ran to the valley floor. Soft fast running snow. As seen in the video I'm standing in the valley floor. My group of 4 (2 skiers, 2 splitboarders) pushed the skin track back an additional nob from where numerous groups were farming the sunny west face. Dropping in first I expected snow to move at some point. Which it did, 80% down my line. 6-8" deep, propagated to about 50 feet wide. Second skier from our party kicked of a similar slab 2 turns into his line that ran about 100 feet. Before our 3rd member dropped in the ridge to our lookers left started to sliding and propagating......
Our other 2 companions then rode down without incident.

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

Numberous crowns from weekend slides. All activity as of late appears to be human triggered.

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

Some wind effect. Mostly clear skies, -12c. Ridge top and valley wind.

Snow surface

Settling dry pow, slightly wind churned. Touchy light footed, waiting to hit the gas peddle type riding.

Photos & Video
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