Observation: Summit

Location: Summit Peak

Date:

December 22, 2021 3:23pm

Observer:

Paul Wunnicke

Route & General Observations

Clear, mild, beautiful. Plenty of evidence of recent NW winds. increasingly supportable wind slab w/ elevation. hollow, drum like in places. Most paths off Summit ridge ran early AM 12/21 stepping down to PWLs.

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)?	Yes

Observer Comments

several recent avalanches, wind texture, hollow, drum like; "suspended slab" on pie cuts & other moving tests

Weather & Snow Characteristics

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

Weather

Recent NW wind

Snow surface

wind skin to wind crust

Snowpack

see profile

Photos & Video

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Wind effect on Tri-tip across the valley

ECTN 12

pdf-36404

Location

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