Avalanche: Summit

Location: Manitoba

Route & General Observations

When we started from the top of Manitoba, one skier skied a little bit on the left and triggered the’ summit lens’ in the lowest right part.
All the upper part SW face collapsed.
the height of the slab was in the middle of the lens 2 feet, 30 inch in the borders where it has been triggered.
No one have been injuried.
Snowpack is very active above treeline where the activity of wind have been stornger

Avalanche Details
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Trigger SkierRemote Trigger0
Avalanche Type Hard SlabAspect South Southwest
Elevation 3700ftSlope Angle 30deg
Crown Depth 24inWidth 150ft
Vertical Run 1000ft  
Avalanche Details

Hard slab located 2 feet deep in the snow. Upper part heavy snow and compressed by the wind action. 150feet wide and 1000feet the lenght of fall

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

20 inch of fresh snow, light breeze on top, 32°

Snow surface

20'' Of fresh snow, wet in the lower part of manitoba


No test, no ect,

Photos & Video
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