Avalanche: Douglas Island

Location: Troy

Route & General Observations

Followed established skin track to summit. Lots of wind effect. Super variable surface. Most aspects above 2500 has sastrugi or windslab, some with a few CMs of dust on top. Some powder to be found the trees and areas protected for the wind.

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 UnknownAvalanche Type Soft Slab
Aspect WestElevation 2600ft
Slope AngleunknownCrown Depthunknown
Width 25ftVertical Run 50ft
Avalanche Details

Small avalanche on steeper aspect along lookers left of y gully on troy proper. Appeared to be a day or two old. Looked natural, no tracks near it.

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)?Yes
Observer Comments

Lots of wind loading. Recent avalanches. Slabs still seem to be a bit energetic. Small shooting cracks (less than 3ft) on thin wind crusts on upper troy proper.

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

Light snow and wind.

Snow surface

Highly variable snow surface. Sastrugi and wind crusts on most aspects above trees, with a dusting on top. Powder in trees and protected areas on lower terrain.


No results in CT or ECT in wind protected area. No slab on top. Faceting rounds on top of melt freeze crust 50cm from surface. DISCLAIMER: I suspect the MF surface was skied before snow fell on it, as it was pretty jagged. I would not be super surprised to find different results where the crust is smoother or in less protected area w/ wind loading.