Avalanche: Girdwood

Location: Notch

Route & General Observations

Notch cat track to ~2000 ft, about treeline above the hut, skied back along the cat track.

Snow surface generally very ‘pasted in’ moist storm snow.

Avalanche Details
If this is an avalanche observation, click yes below and fill in the form as best as you can. If people were involved, please provide details.
Trigger UnknownRemote Trigger Unknown
Avalanche Type UnknownAspect Unknown
ElevationunknownSlope Angleunknown
Crown DepthunknownWidthunknown
Vertical Rununknown  
Avalanche Details

One steeper slope in sight of treeline above the hut appeared to have a small natural release, not large enough to bury a person.

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

Limited collapsing in the storm snow.

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

Raining at the car, light snowfall up higher. Overcast with good horizontal visibility. Above treeline light to moderate winds from the northwest, active loading and transport.

Snow surface

Saturated down low and moist storm snow up higher.


At ~2000ft hand pits showed between 10 to 20cm of moist storm snow over lower density dry decomposing new snow which looked like stellars with the naked eye. Snow depth ranged between 160cm and 300cm.

On one small steeper test slope, a hand pit failed on isolation at the moist/dry interface, but multiple tracks across the slope did not result in anything more than roller balls, no collapsing or movement.

No formal pits or tests.