Observation: Summit

Location: Wilson South

Date:

March 28, 2021 7:16pm

Observer:

Matti Silta

Route & General Observations

Exploratory tour across Canyon Creek up Wilson South. Widespread wind effect in the Summit area.

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

Whumphing experienced on wind slabs while skinning the lookers left ridge up Wilson South.

Weather & Snow Characteristics

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

Snowpack

Dug a pit at ~2350’ W facing slope. Snow surface had visible wind effect. ECTP 3 down 25cm on Facets. Slab was new consolidated snow, 4F to 1F. Weak layer sitting on light crust. Weak layer easily identified in shovel test showing low stability.

Photos & Video

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Put location and wind scouring on Fresno.

Snow texture on Wilson South. Lower slopes provided good skiing.

Shovel tilt test.

Location

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