Avalanche: Turnagain

Location: Seattle Ridge Main Bowl

Route & General Observations

General up track to Main Bowl. Approximately 4″ of new snow at the road. No apparent wind effect to new snow.

Avalanche Details
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Trigger SkierRemote Trigger0
Avalanche Type Soft SlabAspect East
ElevationunknownSlope Angleunknown
Crown DepthunknownWidthunknown
Vertical Rununknown  
Avalanche Details

We witnessed two skier triggered soft slabs on the East aspect of Main Bowl. Both slides were triggered by the same group of four skiers. The approximate slope angle (measured from a distance) is around 40+ degrees. Skiers 1 and 2 skied a slightly less steep slope without problems. Skier 3 skied on to a steeper slope and triggered a slide but was able to ski off the side. Skier 4 skied into similar terrain and triggered a second slide, stopped, and was carried through some trees and a small rock band. Skier 4 ended up coming to a halt, feet downhill, at a small slope angle change and the remainder of the snow above him slid down and buried him to his waist. He was able to dig himself out.

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

Debris from recent avalanches, witnessed two skier triggered slides.

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

Light variable winds. Partially cloudy. Marginal visibility.

Snow surface

~4" of light fluffy new snow.