Avalanche: Hatcher Pass

Location: Moose Creek

Route & General Observations

We spent two days in the mountains to the East of Hatcher Pass. Lower elevations have a solid supportable crust over a deep base of loose facets, makes for easy traveling until your snowmachine breaks through the crust and gets swallowed. Fast skinning conditions though.
High elevation north aspects hold mostly cold snow, but the mid-March warmup crust is there in many places, providing a bed surface for the recent new snow to slide on.

There was 5-10″ snow up high later this week, and it’s all sitting there available for wind transport whenever the next wind storm moves in.

Contact, Location & General Observations
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Forecaster Comments

This area is out of our forecast zone.

Avalanche Details
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Trigger NaturalRemote Trigger Unknown
Avalanche Type Dry Loose SnowAspect North
ElevationunknownSlope Angleunknown
Crown DepthunknownWidthunknown
Vertical Rununknown  
Avalanche Details

attached picture is an example of the many dry-loose avalanches that happened between Thursday the 6th and Friday the 7th. This slide ran almost 700 vertical feet and was 30-50ft wide.
Most of the slides we saw were only a few inches deep near the top, but where couloirs constricted the debris piles could be thigh high.
Even though these were definitely loose cold snow slides, the debris set up surprisingly firm and made skiing in the avy runouts not good.
Anything that hadn't slid would definitely sluff off with a skier. Sluffs were not running very fast, thankfully.

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

many dry-loose avalanches on north aspects. Benign where they could spread out on an apron. Enough to injure a person, but not bury, where the slides ran within constricted couloirs.

Photos & Video
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