Avalanche: Hatcher Pass

Location: Pinnacle

Route & General Observations

Climbed and skied to 5300′

Avalanche Details
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Trigger SkierAvalanche Type Soft Slab
Aspect EastElevation 5000ft
Slope Angle 38degCrown Depth 5in
Width 15ftVertical Run 20ft
Avalanche Details

old wind slab/persistent slab over NSF
Stubborn to trigger, small in size, mod-strong strength, poor structure, low energy, low propagation

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

No other avalanches observed today, one very similar to today's mentioned here observed yesterday
No whumphing
Localized cracking

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

-11c @ 4.5k', Clear, Calm

Snow surface

Old wind loading and wind slabs


1 meter HS @ 5.2k' on West Aspect
Only 1 MF crust near base of snowpack sitting on 10cm of weak facets. No other crusts (likely above rain line)

Photos & Video
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