Avalanche: Girdwood

Location: Crow Creek

Route & General Observations

Lunch ski with 3 goals: look at old surface hoar, see if wind was making the turn into Crow Pass, and get a couple mellow laps. Found 2 out of 3 (no wind).

Avalanche Details
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Trigger SkierRemote Trigger No
Avalanche Type Soft SlabAspect South Southwest
Elevation 1900ftSlope Angle 38deg
Crown Depth 16inWidth 60ft
Vertical Run 100ft  
Avalanche Details

Toured up on S aspect digging hand pits above 1500ft, looking for BSH sheltered between alders. Around 1800 ft noticed a small shooting crack, a little collapsing underfoot. This became more noticeable over next couple kickturns then slab broke underfoot while crossing a convexity. Released across entire pocket between alders.

SS-ASu-R2-D1-O, 40cm down on small facets above a crust, 1880ft, SSW.

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

Calm. Snowing S2 then dropping to S-1. Could see a hint of blue in sky as I left before 3p.

Snow surface

About 5cm new snow. Ski pen 25cm (or more).


Did a quick crown profile and column test. CT11 SP 50cm down on BSH above 5cm old ice crusts layer. BSH was of varying sizes, some grains up to 1mm, noticed plenty of rounded edges. Crust layer seemed to be decomposing, crumbly, finger hard. Also noticed but did not get test results on a very thin BSH or facet layer about 20cm down.

Photos & Video
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