Avalanche: Summit

Location: Manitoba

Route & General Observations

We toured up the standard track and cut left to the northern ridge. There, we dug a pit and continued to just shy of the summit where the wind had scoured the face to bare ground.

Avalanche Details
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Trigger UnknownRemote Trigger Unknown
Avalanche Type UnknownAspect South
ElevationunknownSlope Angleunknown
Crown DepthunknownWidthunknown
Vertical Rununknown  
Avalanche Details

Road observation. Maybe a D2 on the south aspect of Tenderfoot.

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)?No
Observer Comments

We had one collapse on the flats.

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

Snowing lightly for the first half of the day then partly cloudy for the later afternoon. Winds remained low and we did not see any active transport.

Snow surface

Feet of soft powder on top of facets below treeline and variable above—ranging from soft wind pillows to dust on crust to an inch of new snow on top of tundra.


There was a lot of transport from north to south yesterday so we found a sheltered depression that had not seen much wind effect, to include loading, and dug a pit. Snow depth was 65cm on average where the wind had molded it into soft "not-quite-sastrugi" but where we dug our pit the snow was 100cm deep. We dug on a NW aspect at 2600ft.

Structure is generally poor with ~60cm of rounds ranging from fist to one finger hardness—top to bottom—sitting on top of a decomposing crust which caps ~40cm of facets. The facets at the ground seem be rounding as I was able to get about half of them to bond in my fist.

We performed an ECT which did not produce results. However, I was able to get the slab to pop by prying it with my shovel, which revealed a thin layer of small facets on top of the crust.