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Observation: Summit

Location: The Stash

Date:
Observer:
Route & General Observations

Santa’s Helper is finding low probability high consequence avalanche conditions around the greater Summit Lake zone. Consistent mid 20’s ect failures on a cracker crust deep in the snowpack at multiple aspects and elevations 2-4000ft. Weak layer is about 2-3 inches above the stout crust protecting the basal facets on the ground. Clean shears with little propagation. Many large naturals have recently occurred, yet many slopes with similar aspect/loading as ones that have avalanched are lurking untouched. Much of the visible avy debris contains blocks of intact slab. Winds have created soft to stout slabs, supportable and trap crusts in exposed terrain and along ridgetops.

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

Localized cracking of windslab

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

Blue, calm, low teens.

Snow surface

Variable from blower pow to wind effect. Some soft slab, some firm supportable wind slab.

Snowpack

20 -40" inches general depth 2000-4000ft 9" settlement in 72 hours post Solstice storm

Photos & Video
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