Avalanche: Summit

Location: Cabins

Route & General Observations

Lots of HS avalanches observed 2500 – 3500′ S – WNW aspects. some to ground, several w step downs, most appeared to be failing 2/3 – 3/4 depth of snowpack.
Clear, windless, temps dropping through day. fairly supportable (skier not dog) crust to 1550′ disappeared rapidly above that
travelled on generally Easterly aspects, small SH to 2540′.
Active Red polls & woodpeckers. followed coyote tracks

Avalanche Details
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Trigger NaturalRemote Trigger Unknown
Avalanche Type Hard SlabAspect West Southwest
Elevation 3000ftSlope Angleunknown
Crown Depth3ftWidthunknown
Vertical Rununknown  
Avalanche Details

many HS Axs S - WNW aspects @ 2500 - 3500'. some step downs, a couple to ground, generally appeared to be 2/3 - 3/4 depth of snowpack?
See photos and those of A. Moderow

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

Both mid- slope and near ridge crest avalanches; S - WNW; poor structure

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

clear, 22* dropping to 11 during day, no wind

Snow surface

small 1.5mm SH 1200- 2500', fairly supportable crust to 1550' w just a skiff to 2cm of new snow on top transitioned quickly to no crust


generally 100-115 cm 1500-2500'. HS 2 pit 75cm, East aspect 24* on a planar somewhat cross stripped slope

0-8cm: 2.5mm almost completely dry facets
8-9.5: Thanksgiving MF crust w/ facets above
9.5-30cm: 4F-
30-36: Fist hard facets below remnant (Xmas?) crust
36 - 63: 1F- rounds
63-74.5: new snow, + /
74.5 - 75: light wind crust
1.5mm SH

CT 17 @ 63cm below new snow, CT 19@ground, CT21@grnd/0cm, ECTP 11 Q1 with LOTS of Energy & dropped 5mm+
see photo

Photos & Video
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