Observation: Summit

Location: Manitoba tree line

Route & General Observations

Alaska Guide Collective Level 1 course. Manitoba west face to 3000’

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

Whumpfing 3-4 meter radius at 2000’

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

Clear to partly cloudy, single digit temps, calm winds, no precipitation

Snow surface

Surface hoar to up to 1 cm, largest near tree line. Smooth powder, now tracked.


At 2000’ we heard whumpfing. 2 out of 12 pits had propagation down 33cm on facets.

At 2500’ zero out of 8 had propagation in extended column tests.

Right side up snow pack

Photos & Video
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